Abstract: A system for monitoring the integrity of a container having at least one door. The system includes a data interpretation device disposed inside the container. The system further includes a radar sensor interoperably connected to the data interpretation device for monitoring internal conditions of the container and for providing radar data to the data interpretation device, a motion-detection sensor for monitoring motion inside the container, and an antenna interoperably connected to the data interpretation device for communicating information relative to the internal conditions of the container to a location outside the container.

Abstract: An boundary monitoring apparatus comprising an object detection device arranged to transmit a signal into a detection region and to detect an object in said detection region upon receipt of a reflected signal from said object; means for defining a boundary in said detection region; means for determining a path of said object in the detection region; means for performing an evaluation of the determined path of the object with respect to the boundary; and means for causing an alarm event depending on the evaluation.

Abstract: This invention integrates a novel technique for mappers to efficiently collect attributes utilizing various wireless systems such as bluetooth. The wireless technique in the data-gathering device allows the flag-man/data gatherer to input useful information into the device, which can readily be available to the mapper at the other end. This invention makes the traditional mapping technique much more efficient and reliable. Due to the ability to exchange data promptly, it nearly diminishes the room for discrepancies. This device overcomes mainly two deficiencies in current mapping device: the need to use a wire to connect data recording device to a data-collecting device, and the need to use some form of oral communication to relay the attributes of the data being collected. This proves to be very efficient by cutting down the investigation data collection time to nearly half, especially at the times when there is heavy traffic and the accident needs to be cleared up as quickly as possible.

Abstract: According to various illustrative embodiments, a motion-monitoring system comprises at least one antenna fixed within a barrier, the at least one antenna transmitting at least one first radio-frequency signal through the barrier to at least one volume outside the barrier, the at least one first radio-frequency signal reflecting from at least one object in the at least one volume to produce a plurality of second radio-frequency signals, which are received by the at least one antenna, at least one sensing circuit sensing the plurality of second radio-frequency signals and generating a plurality of time-domain output signals, and at least one processor receiving the plurality of time-domain output signals and comparing at least one successive time-domain output signal to at least one previous time-domain output signal to estimate at least one characteristic of the at least one object, including a motion of the at least one object.

Abstract: In a radar system for monitoring targets in different distance ranges, radar pulses are emitted whose length is greater than the length corresponding to the propagation time between two objects to be distinguished from one another, located at different distances. On the receive side the high-frequency signal supplied to the radar transmit pulse former and the radar receive signal are supplied to a mixer. The output signal of the mixer is supplied to a signal analyzer via at least one sampler, whose delay setting with respect to the rising edge of the radar transmit pulse predefines the limit of reach of the distance range to be monitored.

Abstract: An inexpensive surveillance radar apparatus capable of identifying the kind of an object by using a monopulse radar that performs wide-angle two-dimensional surveillance. The radar apparatus receives reflected waves from a plurality of points on a moving object within a monitoring area, using a monopulse radar apparatus for measuring of angles, and determines the reflection point for each reflected wave, and then calculates the position and the width in the measuring angle of the surveillance radar of a moving object.

Abstract: In a method for suppressing interferences while detecting objects in a target area, a transmitter transmits a sequence of pulses into the target area, and a receiver detects the resulting reflection signal of the pulses reflected from the objects, within successive time windows that are referenced to the moment of transmitting an individual pulse and thus represent distance gates. The time spacing between the successive individual pulses is variable and randomized according to the pseudo-noise principle within predetermined limits, and the time windows are adapted accordingly. The received reflection signal may be sampled, digitized, digitally pre-processed and digitally filtered in the individual distance gates. A non-linear digital filter, preferably a sliding median filter, is used for the filtering to suppress transient disturbances. The median is determined from an odd number of consecutive sampled values of a reflection signal detected within a distance gate.

Abstract: A multi-tone CW radar (14) is used to project signals from an antenna (22) and to receive returns with the same antenna. The phase differences between the outgoing signals and the returns are analyzed to determine the existence of motion and the range to a moving object (10). A model is made which has range as its major parameter. A waveform associated with the phase difference between outgoing signals and returns for one of the tones is compared to templates produced by the model to determine which has a range that most closely matches. By varying the range parameters, when a match is detected the range to the object can be obtained even if its motion is pseudorandom. If the range is measured with multiple units it is possible to measure the location of the object. This can be done assuming a grid and algorithmically combining the ranges from the units.

Abstract: A radar for detecting a target wherein a standard deviation of the amplitude of a beat signal from a transmission signal and a reception signal is determined for a predetermined period. A threshold is determined by adding a predetermined value to the standard deviation or by multiplying the standard deviation by a predetermined coefficient. The presence or absence of interference on the beat signal is detected according to the presence or the absence of an amplitude greater than the threshold. For example, an amplitude exceeding the standard deviation×2 is considered a spike noise (SPN), i.e., as “presence of interference”. The threshold used for detecting peaks appearing on a frequency spectrum is then increased. This allows detection of the presence or the absence of a spike noise superposed on the beat signal to be performed more certainly, thereby enabling processing according to the presence or the absence of interference.

Abstract: A CW radar (10) is used to detect motion of objects (22) behind a wall (20) by projecting a radar beam through the wall and by measuring the returns from the objects behind the wall, with a change in the phase difference between the transmitted and received CW signals providing an indication of motion behind the wall and thus the presence of an individual.

Abstract: A detection device for detecting a body entering a predetermined range has a transmission means for periodically radiating a pulse-like transmission signal by way of an electromagnetic wave to which a band restriction has been applied, a first reception means and a second reception means, and a judgment means. Each of the reception means performs receiving, as a reception signal, the electromagnetic wave reflected by the body, periodic sampling of the reception signal after a predetermined delay time has elapsed from transmission, and judging, based on a result of the periodic sampling, whether the body exists. The judgment means judges, based on judgment results of each of the first reception means and the second reception means, whether the body has entered into the predetermined range, and outputs a judgment result.

Abstract: Disclosed is a radar system which comprises an AD conversion unit for converting an analog signal obtained from an antenna into a digital signal, a frequency analysis unit for performing a frequency analysis of the digital signal converted by the AD conversion unit, a time-frequency analysis unit for performing a time-frequency analysis of the digital signal converted by the AD conversion unit, and a target detection unit for detecting a target based on a signal of which the frequency analysis is performed by the frequency analysis unit and a signal of which the time-frequency analysis is performed by the time-frequency analysis unit.

Abstract: An ultra-wideband transceiver that includes a selection mechanism for selecting an internal or an external pulse repetition frequency generator, the output of which is used in the generation of very short duration UWB RF pulses. A detection mechanism is electrically isolated from the oscillator but shares access to a single port that is used for both transmission and reception (e.g. a physical layer transmit/receiver port) of RF signals. The detection mechanism detects changes in the received signal by comparing the received signal to a reference, amplifying these changes, removing high frequency noise and sending the resulting signal for subsequent signal processing, for example a digital signal processing system.

Abstract: A radar including a target measurement component, a differential velocity calculator and an overall velocity determination portion. The target measurement component transmits and receives an electromagnetic wave over a detection range repeatedly at measurement intervals to measure a position of a target in the detection range and measure a Doppler velocity of the target based on a Doppler shift of the electromagnetic wave reflected from the target. The differential velocity calculator determines a differential velocity of the target based on a change in position of the target during consecutive measurement intervals. The overall velocity determination portion determines a current overall velocity by calculating a weighted average of the Doppler velocity, the differential velocity, and a previously determined overall velocity.

Abstract: According to the invention, IEEE 802.15.4a packets are used for communications, ranging and passive radar (detecting changes/motions, tracking objects in the environment) functionality. Changes and motions in the environment are detected by exploiting the specific preamble structure of the IEEE 802.15.4a packets. A sequence of packets transmitted through an environment is received. Each packet includes a preamble. The preamble in each packet is despread to update a reference multipath profile and to obtain a current multipath profile for a currently received packet. The reference multipath profile is compared with the current multipath profile to detect an object in the environment.

Abstract: A system and method for highly selective intrusion detection using a sparse array of time modulated ultra wideband (TM-UWB) radars. Two or more TM-UWB radars are arranged in a sparse array around the perimeter of a building. Each TM-UWB radar transmits ultra wideband pulses that illuminate the building and the surrounding area. Signal return data is processed to determine, among other things, whether an alarm condition has been triggered. High resolution radar images are formed that give an accurate picture of the inside of the building and the surrounding area. This image is used to detect motion in a highly selective manner and to track moving objects within the building and the surrounding area. Motion can be distinguished based on criteria appropriate to the environment in which the intrusion detection system operates.

Abstract: The present invention is a radar platform that detects intruders and wirelessly reports to a key-fob. The entire radar platform is water-resistant and two banks of batteries are included for convenience or extended operation time. The device consists of a MicroPower Radar (MPR), a data acquisition (DAQ) element and a processor. Radar sends a short, low-amplitude signal of radio-frequency (RF) energy toward the target. This signal reflects from the target and is received as a Doppler change in signal amplitude. The radar's RF energy is in the radio frequency band and operates at much lower powers than many mobile devices such as cell phones. This Doppler System change in signal amplitude is filtered, amplified and presented to the DAQ. The DAQ converts the analog Doppler signal into a digital bit-stream and passed to the radar processor. Proprietary software analysis is performed to further filter and to make an alarm determination.

Abstract: Methods are disclosed for independently setting the range resolution, Doppler resolution, and pulse compression processing gain of a Doppler radar system. Higher Doppler resolution is achieved by segmenting and spreading apart a pseudo-random code (PRC) to increase the processing dwell time on a target. Simultaneous high and low range resolution is obtained by interleaving a second segmented low resolution PRC into the time gaps between a first segmented high resolution PRC.

Abstract: A pulsed radar system uses phase noise compensation to reduce phase noise due to drift of the reference oscillator to enable detection of micro movements and particularly human motion such as walking, breathing or heartbeat. The noise level due to A/D sampling must be sufficiently low for the phase noise compensation to be effective. As this is currently beyond state-of-the-art for high bandwidth A/D converters used in traditional receiver design, the receiver is suitably reconfigured to use analog range gates and narrowband A/D sampling having sufficiently low noise level. As technology continues to improve, the phase compensation techniques may be directly applicable to the high bandwidth A/D samples in traditional receiver designs.

Abstract: A system and method for highly selective intrusion detection using a sparse array of time modulated ultra wideband (TM-UWB) radars. Two or more TM-UWB radars are arranged in a sparse array around the perimeter of a building. Each TM-UWB radar transmits ultra wideband pulses that illuminate the building and the surrounding area. Signal return data is processed to determine, among other things, whether an alarm condition has been triggered. High resolution radar images are formed that give an accurate picture of the inside of the building and the surrounding area. This image is used to detect motion in a highly selective manner and to track moving objects within the building and the surrounding area. Motion can be distinguished based on criteria appropriate to the environment in which the intrusion detection system operates.

Abstract: A plurality of multi-tone CW radars are used to generate a swath of ranges to a moving object or individual behind a wall or building structure in which the overlap of the range swaths from spaced-apart radars determines the location of the moving object or individual. A histogram of the swath overlaps is used to generate a display of the path of the moving object or individual.

Abstract: Embodiments of methods and apparatus for detecting motion associated with sports equipment based on phased array radar are generally described herein. Other embodiments may be described and claimed.

Abstract: Sensing moving entities includes transmitting a stepped-frequency radar signal including multiple frequencies through a wall from a first side of the wall to a second side of the wall. Portions of the radar signal that are reflected by entities located beyond the second side of the wall are detected. The reflected portions are processed to generate processed data including information associated with frequency shifts between the transmitted signal and the detected signal. The processed data is analyzed to determine if reflected portions are associated with moving entities.

Abstract: According to various illustrative embodiments, a motion-monitoring system comprises at least one antenna fixed within a barrier, the at least one antenna transmitting at least one first radio-frequency signal through the barrier to at least one volume outside the barrier, the at least one first radio-frequency signal reflecting from at least one object in the at least one volume to produce a plurality of second radio-frequency signals, which are received by the at least one antenna, at least one sensing circuit sensing the plurality of second radio-frequency signals and generating a plurality of time-domain output signals, and at least one processor receiving the plurality of time-domain output signals and comparing at least one successive time-domain output signal to at least one previous time-domain output signal to estimate at least one characteristic of the at least one object, including a motion of the at least one object.

Abstract: In a periphery monitoring system for monitoring movements of a mobile object around an installation location of a Doppler sensor, a signal output from the Doppler sensor is subjected to an FFT analysis, and a total sum of the frequency levels of all of the frequency bands obtained through the FFT analysis is calculated at predetermined time intervals. A reference level and abnormal level are set based on the calculated total sum. If the calculated total sum exceeds the abnormal level and falls to or below the abnormal level before a first set period passes since the exceeding of the abnormal level, the periphery status is determined to be abnormal. If the total sum exceeds the abnormal level but does not fall to or below the abnormal level even after the first set period passes since the exceeding of the abnormal level, the periphery status is determined to be normal, and the reference level is updated to a new reference level set based on total sums calculated during the first set period.

Abstract: An ultra wideband radar system for detecting objects where at least one of the radar system or the object is moving. The radar may be scanned in at least one dimension, which may include angle or range. The system includes a scan combiner that combines scan information in accordance with a trajectory characteristic of a moving object and/or of a moving platform on which the radar resides. Scans may be combined by integration or filtering. A fast calculation method is described wherein the scans are combined into subsets and subsets are shifted in accordance with the trajectory characteristics before further combination. The scan information is combined in accordance with trajectory characteristics to enhance the object signal to noise. Further features are described wherein the scan information is combined according to a family of candidate trajectories and/or object positions.

Abstract: A system is disclosed for administering a restricted flight zone using radar and lasers for detecting, tracking, warning and destroying airborne craft that enter restricted flight zones without authorization or that approach dangerously close to protected areas on the ground. The system comprises a support for positioning adjacent the surface of the Earth at a bottom of the zone, detecting and defending apparatus mounted on the support for detecting airborne objects in the zone and defending against the airborne objects in the zone, and controlling apparatus for controlling the detecting and defending means.

Abstract: A weather radar system or method can be utilized to determine potential weather hazard for an aircraft in a terminal area. The weather radar system can utilize processing electronics coupled to an antenna. The processing electronics can determine presence of the potential in response to data related to returns received by the weather radar antenna. The data can include a mean velocity parameter or a spectral width parameter or reflectivity.

Abstract: An ultra wide bandwidth, high speed, spread spectrum communications system uses short wavelets of electromagnetic energy to transmit information through objects such as walls or earth. The communication system uses baseband codes formed from time shifted and inverted wavelets to encode data on a RF signal. Typical wavelet pulse durations are on the order of 100 to 1000 picoseconds with a bandwidth of approximately 8 GHz to 1 GHz, respectively. The combination of short duration wavelets and encoding techniques are used to spread the signal energy over a an ultra wide frequency band such that the energy is not concentrated in any particular narrow band (e.g. VHF: 30-300 MHz or UHF: 300-1000 MHz) and is not detected by conventional narrow band receivers so it does not interfere with those communication systems.

Abstract: A method of generating aircraft tactical alerts includes receiving track positions for two aircraft; receiving trajectories and static conformance bounds for the two aircraft; receiving current position for the two aircraft; generating tactical check segments and variable conformance bounds for the two aircraft based on the current position, the static conformance bounds, trajectory, adapted data, and the track positions; and generating a tactical alert if the variable conformance bounds overlap within a specified lookahead time. The variable conformance bounds can be either symmetric or asymmetric about projected tracks. The variable conformance bounds can use step functions, or continuously widening bounds up to the static conformance bounds. The variable conformance bounds can be based on modifying the static conformance bounds in two or three spatial dimensions.

Abstract: A method and apparatus for synchronized clocking between a radar receiver and a radar transmitter includes sharing a reference signal between the transmitter and receiver, dividing the common reference into a transmit clock signal in the transmitter and a receive clock signal in the receiver. The receive clock signal and the transmit clock signal are synchronized using a trigger pulse. The synchronization is performed to achieve a 180 degree phase shift between the transmit and receive clocks. Radar pulse transmissions occur on an edge of the transmit clock coinciding with the trigger pulse. A signal recorder is activated on the edge of the receive clock each time the trigger pulse is received. The signal recorder is deactivated after a fixed interval based upon the receiver clock signal.

Abstract: A radar system having a processor, a waveform generator, a plurality of antenna interfaces, a set of first antennas configured to transmit a waveform, and a set of second antennas configured to receive a reflected waveform is disclosed. The waveform generator and antenna interfaces are in control and signal communication with the processor, each of the first antennas are in signal communication with one of each antenna interface, and each of the second antennas are in signal communication with one of each antenna interface. The waveform generator is in control and signal communication with each antenna interface, and is configurable to generate a waveform conforming to at least two ISM bands. Each first antenna is configured to transmit a circularly polarized electromagnetic waveform, and each second antenna is configured to receive a reflected circularly polarized electromagnetic waveform complementary to the first antennas.

Abstract: A method for processing radio frequency reflections is provided. The method applies an RF waveform to a transmission line that is a conductor used for providing a utility service. The method uses a RF waveform generator to transmit UltraWideband (UWB) RF waveforms through the conductors of a building. The RF waveforms are emitted at emission points that can be impedance discontinuities along the transmission line or impulse radios. The emitted RF waveforms reflect off of objects in the building and are received at reception points that can be impedance discontinuities or impulse radios. These reflections are processed to determine movement of objects within or near the building. Based on the reflections of the RF waveforms, the position of the objects within or near the building can be determined.

Abstract: Systems and methods for detecting a respiration signal in a target area are disclosed. Briefly described, in architecture, one embodiment of the system, among others, can be implemented as follows. The system includes a scanning antenna configured to transmit a microwave signal across a horizontal axis in the target area. Also, the system includes a control system that tracks the position of the scanning antenna along the horizontal axis. A signal processing system then detects a respiration signal of a living subject in the target area from reflected microwave signals from the target area and the positional data. Other systems and methods are also provided.

Abstract: The invention relates to a method for detecting the passage by a vehicle of a determined point for monitoring on a road, wherein from a remotely situated location a radar beam is transmitted continuously to the point for monitoring, reflections from the transmitted radar beam are received at the remotely situated location, and it is determined from the received reflections that the vehicle is passing the point for monitoring. The radar beam can herein be transmitted at an acute angle to the travel direction of the passing vehicle. The detection can be used to activate a red-light camera, to measure the speed of the vehicle or measure the traffic intensity, without sensors, for instance induction loops, having to be arranged in the road for this purpose.

Abstract: A system for real-time tracking and display of movement of an airborne hazardous agent includes one or more mobile units each having a wind parameter measuring apparatus that provides real-time wind direction and speed, a navigation system that provides a mobile unit heading and real-time position of the mobile unit, and a radio transmitter; a computer system having an input for receiving the wind parameters and the mobile unit heading and the mobile unit position, a processor and a memory and that is configured with control logic to enable the computer system to obtain the wind parameters, mobile unit heading, mobile unit position, determine a wind heading and generate an image having a geographic point corresponding to position where the hazardous agent was released, a graphical indication of possible movement over time, and a graphical indication of predicted movement over time based upon the wind parameters; and a display for displaying the image.

Abstract: A method of identifying an unknown target comprising creating a density function of cepstral coefficients for a known target; receiving a signal from the unknown target; transforming the signal from a time spectrum to a frequency spectrum using a Fourier transform; transforming the frequency spectrum to a cepstrum; creating a density function of cepstral coefficients for the unknown target; and comparing the density function of the unknown target with the density function of the known target.

Abstract: Method and apparatus for extracting coherent information from in-phase (I) and quadrature (Q) signals. In a form, signals from an antenna array are mixed to form a plurality of I and Q signals that combined to form respective complex vectors. Each vector is adjusted in phase and magnitude to compensate for variations in field signal patterns, summed with other vectors, spatially and temporally filtered, and processed using spectral analysis algorithms to extract coherent spatial information. The coherent spatial information may be used to detect the presence, number and activity of insects within a structure in the near field of the antenna.

Abstract: In one embodiment of a microwave sensor, when a “low” plants countermeasure is conducted, if an alert has been generated 5 times or more within 1 minute, an object decision move distance is changed to be longer and a “high” plants countermeasure is conducted. Subsequently, when assuming that the plants countermeasure is “low”, only if the alert is not generated within 10 minutes, the plants countermeasure is returned to “low”. Further, if the alert is not generated within 10 minutes in the status of the “low” plants countermeasure, the plants countermeasure is canceled.

Abstract: A microwave sensor transmits a plurality of microwaves of different frequencies toward a detection area and carries out an object detection operation based on reflected waves of the microwaves from an object present in the detection area. The microwave sensor includes a distance identification section for obtaining a relative distance to the object in the detection area, a movement-distance identification section for obtaining a movement distance per unit of time of the object in the detection area, and an object determination section that receives output from the distance identification section and the movement-distance identification section and carries out an operation for determining object detection by setting the movement distance value per unit of time, which is a threshold for determining object detection, smaller for longer relative distances to the object in the detection area.

Abstract: An anti-personnel airborne radar application for ultra slow target tracking is provided. The anti-personnel airborne radar application includes a rotorcraft and a signal processing system. The signal processing system includes a radar antenna supported by said rotorcraft, a plurality of phase centers, a conditioning circuit for each phase center, an adaptive signal processor, and an ultra slow target indicator. Each phase center is for receiving reflected radar signals received by the radar antenna. The adaptive signal processor processes the received condition signal from each of the phase centers, allowing the ultra slow target indicator to render tracking reports. A method of detecting human motion over a ground swath is also provided.

Abstract: A radar device (2) includes plural transmission antennas and plural reception antennas. The reception antennas constitute a reception-side antenna portion (20) and are arranged at an interval of d. The transmission antennas constitute a transmission-side antenna portion (18) and are arranged at an interval of d?=d×(n?1). The path length at which the electric wave is reflected from a target is identical between channels A9 and B1, and seventeen kinds of channels (A1 to A8, A9 or B1, B2 to B9) which are different in path length by every fixed distance are achieved. The data of the channels (A1 to A9 and B1 to B9) using different transmission antennas are respectively collected in different measuring cycles, and an error based on the time difference between the measuring cycles is corrected on the basis of a correction value calculated from the data of the channels A9, B1.

Abstract: In some pseudo-orthogonal waveform embodiments, a radar system transmits pseudo-orthogonal waveforms and performs multiple correlations on a combined single receiver channel signal. In some quadratic polyphase waveform embodiments, a radar system may simultaneously transmit frequency separated versions of a single quadratic polyphase waveform on a plurality of transmit antennas, combine the return signal from each antenna into a combined time-domain signal, and perform a Fourier transformation on the combined time-domain signal to locate a target. The radar system may identify a target, such as sniper's bullet, incoming projectile, rocket-propelled grenade (RPG) or a mortar shell. In some embodiments, the system may estimate the target's trajectory to intercept the target. In some embodiments, the system may estimate the target's trajectory and may further extrapolate the target's trajectory to locate the target's source, such as the sniper.

Abstract: A radar apparatus comprises: a transmitter unit having a high-frequency oscillating unit whose oscillation frequency is variable, and a pulse amplitude modulating unit for amplitude-modulating a pulse of a transmission high-frequency signal output from the high-frequency oscillating unit with a first control pulse signal; a receiver unit having a gating unit for controlling ON/OFF of an input of a received high-frequency signal with a second control pulse signal; and a controlling and signal processing unit for controlling the transmitter unit and the receiver unit, and for switching a first operation mode for making the apparatus function as an FM-CW radar, and a second operation mode for making the apparatus function as a pulse radar.

Abstract: A surface wave radar system including a receive antenna array (20, 22) for generating receive signals, and a data processing system (24) for processing received data representing the receive signals to mitigate ionospheric clutter. The received data is range and Doppler processed, and a spatial adaptive filter (52) is trained using training data selected from the processed data. The training data includes ionospheric clutter data and excludes cells which contain target data and substantial sea clutter. The processed data is filtered using the filter (52), which may be based on loaded sample matrix inversion. The antenna array (20,22) may be two-dimensional having an L or T shape.

Abstract: A method and system for detecting an object uses a composite evidence grid based on dual frequency sensing. A source transmits a laser transmission in a first zone. A detector receives a reflection of the laser transmission from an object in the first zone to determine laser observed data associated with points on the object. A transmitter transmits a radar transmission in a second zone that overlaps with the first zone. A receiver receives a reflection of the radar transmission from an object in the second zone to determine radar observed data associated with points on the object. The laser observed data is processed to form a laser occupancy grid for the first zone and the radar observed data is processed to form a radar occupancy grid for the second zone. An evaluator evaluates the radar occupancy grid and the laser occupancy grid to produce a composite evidence grid for at least an overlapping region defined by the first zone and the second zone.

Abstract: A system and method for preemptively sensing an object in the potential drive path of an automotive vehicle and selectively operating both a collision countermeasure system and a parking assistance system aboard the automotive vehicle are disclosed herein. The system includes a radar sensor, ultrasonic sensors, and a data processing system mounted aboard the automotive vehicle. The data processing system is electrically connected to the radar sensor, the ultrasonic sensors, the collision countermeasure system, and the parking assistance system. The sensors are operable to cooperatively sense the position of the object in the potential drive path of the automotive vehicle and accordingly transmit sensor data to the data processing system. The data processing system is operable to receive the sensor data, selectively process the sensor data, and accordingly transmit operating instructions to the collision countermeasure system and the parking assistance system so as to selectively operate both systems.

Abstract: A field unit for warning of a danger of collision between an aircraft and an obstacle, in particular a topographical ground obstacle or an obstacle formed by a mast, building or aerial cable structure, comprises a multi-part tubular mast having devices for fixing a solar panel and a radar antenna; an elongate radar antenna in an environment-protective casing, which, with an electronics unit, forms a radar system for synthesized radar detection of an aircraft in a radar coverage area; a central processing unit for identifying on the basis of information from the radar system an aircraft which is in a zone of the radar coverage area and which on the basis of radar information such as direction, distance and/or speed computes a collision danger area; and a high-intensity light system and radio transmitter system that can be activated by the central processing unit upon detection of an aircraft in a collision danger area.

Abstract: An ultra wideband radar system for detecting moving objects comprising an antenna, which may be scanned in at least one dimension, and a signal processor wherein the signal processor includes a scan combiner that combines scan information in accordance with a candidate trajectory for the moving object. Scans may be combined by integration or filtering. A fast calculation method is described wherein the scans are combined into subsets and subsets are shifted in accordance with the candidate trajectory before further combination. A method is described wherein a region is scanned with an ultra wideband radar, the scan information is combined in accordance with an expected trajectory to enhance the object signal to noise. Further features are described wherein the scan information is combined according to a family of trajectories. A trajectory yielding a potential object detection initiates a further scan combination step wherein the family of trajectories is further resolved.

Abstract: An intrusion detection system and method are provided that can utilize impulse radio technology to detect when an intruder has entered a protection zone. In addition, the intrusion detection system and method can utilize impulse radio technology to determine a location of the intruder within the protection zone and also track the movement of the intruder within the protection zone. Moreover, the intrusion detection system and method can utilize impulse radio technology to create a specially shaped protection zone before trying to detect when and where the intruder has penetrated and moved within the protection zone.