Abstract: A radar detector is operated to suppress nuisance radar alerts by identifying a first signal in radar band of interest, e.g., having a frequency that is a harmonic of a first nuisance local oscillator frequency leaked from a nearby radar detector and identifying a second signal having a frequency that is a harmonic of a second nuisance local oscillator frequency leaked from the radar detector where the first and second local oscillators are companion signals. A detector is also provided that suppresses nuisance radar alerts by detecting a first signal in a radar band, providing a first alert designating the detection of the first signal, determining that the first signal is a nuisance signal, providing a second alert designating that the first signal is a false alarm, and turning off the second alert after a predetermined period.

Abstract: A radar detector enabling hands-free communication over a mobile phone by connecting the mobile phone to the radar detector. The radar detector includes a horn antenna; a signal-processing unit (SPU) for detecting a signal received by the horn antenna; a laser module for receiving a laser signal; a central processing unit (CPU) for controlling the SPU; a pulse delay unit for delaying or sustaining a CPU pulse; a sweep voltage generator unit for driving the SPU; a warning unit for warning the detected signal; an audio amplifier controller connected to the CPU and the warning unit to amplify an audio signal; and a connecting unit installed to connect the audio amplifier controller with a mobile phone. The connecting unit includes a microphone, a switch for reception of a signal from the mobile phone, and a connection portion for connection to the mobile phone.

Abstract: A method for radar protection. The method includes recording energy events and calculating differences in recorded energy events to determine pulses. The method further includes sorting intervals between pulses into histogram bins, each bin representing a range of time intervals between two pulses, each pulse indicative of a radar frequency and limiting network traffic on a frequency based on a selected bin count.

Abstract: The invention generally relates to the field of computer software particularly to an improved method of providing aircrew decision aids for use in determining the optimum placement of an Electronic Attack (EA) aircraft. The core of the invention is a software program that will dynamically provide the EA flight crew situational awareness regarding a threat emitter's coverage relative to the position of the EA aircraft and to the position of protected entities (PE). The software program generates information to provide visual cues representing a Jam Acceptability Region (JAR) contour and a Jam Assessment Strobe (JAS) for display via designated aircraft cockpit processors and devices. The JAR and JAS will aid the EA aircrew in assessing the effectiveness of a given jamming approach.

Abstract: A communication system for use with a motorcycle includes a main unit that has a detector and a transmitter that transmits an alert signal upon the detection of a radar or laser by the detector. The system further includes either a visual indicator or an audio indicator. The visual indicator has a receiver that receives the alert signal from the transmitter, and a display which provides a visual display of the alert signal. The audio indicator has a receiver that receives the alert signal from the transmitter, and a speaker which emits an auditory response of the alert signal. The system can further include a mounting assembly having a connector that is removably connected to a part of a motorcycle, a support bracket to which the main unit is removably coupled, and a link that pivotably couples the support bracket and the connector.

Abstract: A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. When detecting emitter signals of a particular emitter, the receiver may periodically revisit the portion of the frequency spectrum in which that emitter operates. The revisit time that the receiver uses for a particular emitter may dependent on certain characteristics of the emitter. One of these characteristics is the illumination time of the emitter. Some emitters may present more than one illumination time to a detecting receiver. This may occur, for example, if the emitter sweeps azimuth and changes its elevation angle. Thus, a system and method are provided for computing revisit times for emitters with multi-valued illumination times.

Abstract: Calibration of an acceleration detector is initiated by a user depressable button such as a button indicating a vehicle is at rest and/or by the detector reading an OBDII vehicle communication protocol to determine the condition of the vehicle. Calibration permits more accurate measurements in a vehicle performance test.

Abstract: A radar detector includes features to reduce emissions such as those typically generated by the detector's local oscillator. Two low noise amplifiers (LNA's), operating in X band and a combined K/Ka band, respectively amplify X and K/Ka band signals from separate antennae, and deliver those signals over separate, elongated and narrow signal paths to X and K/Ka mixers, where those signals are mixed with local oscillator (LO) signals to produce IF for detection. The elongated, narrow signal paths from the antennae to the mixers reduce LO emissions, and those emissions are further reduced by incorporating radar absorbers between the circuit board and detector case along the antenna-mixer path, including radar absorptive paint on the circuit board itself along this path, and sealing the case with a conductive sealing gasket.

Abstract: A radar device is mounted on a vehicle, for detecting an object, and includes: a transmitting unit for transmitting an electromagnetic wave as a transmitter signal; a receiving unit for receiving a reflected signal that is reflected from the object as a receiver signal; a signal processing unit for measuring a distance and a relative velocity between the vehicle and the object on the basis of a beat signal that is obtained by the transmitter signal and the receiver signal; and an interference detecting unit for detecting the interference signal from another radar device or a communication device on the basis of a signal intensity of the frequency range that is not used for measuring the distance to the object and the relative velocity of the object.

Abstract: A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. When detecting emitter signals of a particular emitter, the receiver may periodically revisit the portion of the frequency spectrum in which that emitter operates. The revisit time that the receiver uses for a particular emitter may dependent on certain characteristics of the emitter. One of these characteristics is the illumination time of the emitter. Some emitters may present more than one illumination time to a detecting receiver. This may occur, for example, if the emitter sweeps azimuth and changes its elevation angle. Thus, a system and method are provided for computing revisit times for emitters with multi-valued illumination times.

Abstract: The invention allows the detection and processing in a radio signal received by a receiver, of any signal of “pulsed” type present in radio signals applied to the input of a radiofrequency receiver, the receiver having an analogue/digital converter for performing the coding into digital on N bits of P successive samples of the analogue signal applied to the input of the receiver and a computer for processing the said digital signals, characterized in that on the basis of a histogram of the rate of occupancy of the digitized samples, graded in ranges Fx of amplitude-increasing sample levels, is determined, from among the ranges Fx, a range Fn onwards of which the total number of digitized samples Nnor contained in the ranges Fn and those below Fn is greater than or equal to a normality threshold Nn, Nn being a number predetermined as a function of the sensitivity of the detection of pulsed signals that one wishes to achieve.

Abstract: A method (for example, machine-implemented, e.g., via a receiver), for determining whether a transmitted pulsed-signal is a linear or non-linear frequency modulated (FM) signal, includes: iteratively determining upper and lower bound slopes associated with frequency components of a pulse of a signal during a time period of the pulse; and comparing each determined upper bound slope to a previous or initial upper bound reference slope and comparing each determined lower bound slope to a previous or initial lower bound reference slope in order to determine the linearity, or non-linearity, of the signal.

Abstract: A hybrid radar receiver includes an antenna array for receiving an input signal having a radar signal from a signal emitter. Each array element outputs an analog signal on a respective data channel. For each data channel, an activatable A/D converter is provided. A dedicated hardware circuit, which typically includes a detector/log video amplifier that is coupled to a threshold/pulse digitizer, is included to determine when a radar pulse is being received. When the circuit determines that a pulse is being received, the circuit activates each A/D converter to generate a digital signal on each channel. When a pulse is not currently being received, the circuit deactivates each A/D converter and digital signals are not produced. Pulse parameter(s) generated by the hardware circuit and the digital signals on each channel are sent to a software equipped processor which implements a signal emitter identification algorithm.

Abstract: A single chip radio transceiver includes circuitry that enables detection of radar signals to enable the radio transceiver to halt communications in overlapping communication bands to avoid interference with the radar transmitting the radar pulses. The radio transceiver is operable to evaluate a number of most and second most common pulse interval values to determine whether a traditional radar signal is present. The radio transceiver also is operable to FM demodulate an incoming signal to determine whether a non-traditional radar signal, such as a bin-5 radar signal, is present. After. FM demodulation, the signal is averaged wherein a substantially large value is produced for non-traditional radar signals and a value approximately equal to zero is produced for a communication signal that is not FM modulated with a continuously increasing frequency signal. Gain control is used to limit incoming signal magnitude to a specified range of magnitudes.

Abstract: A system combining the features, elements, and operations of a cellular telephone and a radar detector into a unitary assembly. The present invention generally comprises a housing enclosing a power supply, an output speaker, an input microphone, an antenna, a display screen, a multi-button keypad, cell phone circuitry, and radar detection circuitry. The housing further incorporates a spring-loaded clip assembly that provides for “hands-free” cellular telephone operation. The present invention may include a plurality of operational modes that are manually selected by a user via the keypad. The operational modes may include “cellular telephone only”, “radar detector only”, and a hybrid mode wherein the system operates as a radar detector until an incoming cellular telephone signal is detected causing the system to convert to its cellular telephone operational mode.

Abstract: A communication system for a vehicle traveling over a road surface is provided with at least one detector for sensing speed detection signals impinging on the vehicle, to monitor the speed of the vehicle or a nearby vehicle. A radiofrequency transmitter communicates the detector output to a receiver adjacent the passenger compartment of the vehicle. The receiver controls one or more annunciators to output one or more annunciator indications to the system user. The radiofrequency transmitter in one embodiment directs transmissions along a ground skip path, reflecting information over the road surface so as to enter the receiver located in or near a passenger compartment of the vehicle. A wireless control unit provides indication of system operating status and allows a user to input commands to the system.

Abstract: The present invention relates to a radar detector and a radar detecting method for WLAN systems according to 802.11 wireless communication standards, and particularly concerns the radar detection for 802.11 h dynamic frequency selection mechanism. The essence of the innovation consists in projecting the received phase vector on the signal subspace orthogonal to the expected radar pulse subspace and taking the norm of the resulting vector. The closer the norm is to zero, the more likely the received signal is to be a radar pulse. The invention is able to detect both, sinusoidal radar signals and chirp-like radar signals.

Abstract: A radar detector for a motorcycle having an electrical power supply and a receiver housing. The radar detector includes a housing adapted to attach to the receiver housing. The housing is divided into a right-hand side and a left-hand side. A plurality of user controls is disposed within the housing. A majority of the controls are disposed on the left-hand side of the housing.

Abstract: A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. Multiple receiver hardware configurations may be available for detecting a set of emitters. A system and method are provided that allow an operator to select the most appropriate configuration for an intercepting dwell, thereby facilitating resolution of conflicting hardware configurations for different emitter modes.

Abstract: A method for radar protection. The method includes recording energy events and calculating differences in recorded energy events to determine pulses. The method further includes sorting intervals between pulses into histogram bins, each bin representing a range of time intervals between two pulses, each pulse indicative of a radar frequency and limiting network traffic on a frequency based on a selected bin count.

Abstract: A method for detecting radar is provided by the present invention. The invention begins by sweeping a first local oscillator (LO). Once a band has been identified as containing a radar signal, the detector interrupts its normal operation and rechecks the frequency in question for confirmation of CW radar, rather than waiting for the initial sweep to finish. Upon receiving partial information from the initial fast sweep, the detector may repeat this sweep at a slower rate in order to improve sensitivity towards a CW source. If information was from a CW source one can be assured to see the information again when sweeping the same frequency. By contrast, if initial information is from a swept radar detector the information will not be present in the rescan, as the offending radar detector would have moved to a different frequency during the same period of time.

Abstract: The present invention relates to a separable radar detector, and more particularly, to a separable radar detector, wherein a horn antenna and a circuit for detection, and a display unit for displaying detected signals thereon are constructed to be moved, separated or rotated with respect to each other. The separable radar detector of the present invention comprises a horn antenna, a signal-processing unit for processing signals received by the horn antenna, an upper case for accommodating the horn antenna and the signal-processing unit, a lower case connected to the upper case to be relatively moved with respect thereto, and a display unit connected to the signal-processing unit and installed in the lower case to inform a user of the received signals processed by the signal-processing unit.

Abstract: A method and an antenna arrangement are disclosed for reducing the antenna radar cross section for an externally illuminating radar source. A radar pulse is transmitted with the antenna arrangement fully matched to achieve a lowest possible power loss of the pulse. At all other times the antenna will be poorly matched and thereby will act as a low radar cross section. The reduced radar cross section leads to an antenna gain reduction, which most often can be accepted since competing noise is reduced as much as the useful signal. It is further suggested that the range gate of the receiver and the transmitter pulse control the antenna. Thus, the antenna is “fully opened” during the transmitting pulse and may be partly or “trade-off” matched during range gate reception. In the interval of not transmitting or receiving, the antenna will present a low radar cross section.

Abstract: A speed trap detection and warning system for a vehicle (9) comprises a GPS or mobile telephone signal receiver and processor which calculates the location of the vehicle (9), the speed thereof and the direction of travel thereof, a memory storing data defining the location of a number of speed traps (5, 6) and alerts the driver if the vehicle is within a predetermined distance of a speed trap and the vehicle's speed is greater than the road speed limit. Also disclosed is a system for calculating the location and speed of a vehicle (9), comparing the calculated data with stored data defining the locations of roads and the speed limits therefor, and alerting the driver if the vehicle's speed exceeds the speed limit for the road on which it is travelling. A further system is disclosed for displaying to the driver the speed limit for the road on which the vehicle is travelling.

Abstract: A method and apparatus for evaluating whether one or more threat sources is actively tracking an object, such as an aircraft. A tracking system may analyze information regarding signals received from a source and provide a track indication that the source is actively tracking the object without adjusting the dwell arrangement of the scan strategy of the receiver. A track indication may be provided where a sample count of signal intercepts from the source is greater than a track count during a window. A break track indication representing that the source is not actively tracking the object may be provided when a number of signal intercepts from the source is less than a break track count during a window.

Abstract: A radar detection technique in a WLAN device can include a short pulse detection technique and a long pulse detection technique that can be performed using multiple receive chains. Short pulse detection is particularly effective when the incoming signal includes one or a limited number of main pulses and some residual pulses. In contrast, long pulse detection is particularly effective when the incoming signal is longer, thereby allowing various characteristics of the incoming signal to be accurately measured.

Abstract: A system for detecting and evading vehicle identification means (VIM), comprising: locating device, control device having a plurality of I/O channels, each adapted to receive or transmit serial or parallel data, processing device, electronic storage device comprising at least one database of known VIM coordinates and identification prevention device (IPD) adapted to automatically prevent identification of the vehicle's license plate number, owner, driver or any part or passenger of the vehicle.

Abstract: Calibration of an acceleration detector is initiated by a user depressable button such as a button indicating a vehicle is at rest and/or by the detector reading an OBDII vehicle communication protocol to determine the condition of the vehicle. Calibration permits more accurate measurements in a vehicle performance test.

Abstract: A system for detecting and evading vehicle identification means (VIM), comprising: locating means, control means having a plurality of I/O channels, each adapted to receive or transmit serial or parallel data, processing means, electronic storage means comprising at least one database of known VIM coordinates and identification prevention device (IPD) adapted to automatically prevent identification of the vehicle's license plate number, owner or driver.

Abstract: In a police radar detector, a sweep signal defines at least one first sweep signal and at least one second sweep signal with the at least one second sweep signal being seamlessly inserted into the first sweep signal so that the first sweep signal is interrupted during the second sweep signal and restored after completion of the second sweep signal so that the first sweep signal can be continued. The frequencies swept by the at least one second sweep signal are thus overswept. By assigning the frequencies swept during the at least one first sweep to the radar bands of interest and the frequencies swept during the at least one second sweep to the frequencies used in the POP mode of operation by police radar, the short bursts of energy used in the POP mode can be detected.

Abstract: Apparatus and method for multi-band, multi-frequency signal detection and transmission, comprising a multi-band wideband antenna, a receiver based on a plurality of synthesized down-converters and a plurality of synthesized programmable multi-channel phase-locked LOs, a DDS and a synthesized complex I/Q phase-detector, a control center based on a DSP connected with an ADC, plurality of DACs and an FPGA, and a plurality of synthesized programmable multi-channel transmitters synchronized with the DDS.

Abstract: A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. However, it is possible that the scan strategy is not realizable because of capacity constraints within the receiver system itself. One embodiment of the invention provides a method for detecting and correcting such a situation.

Abstract: A dual mode radar seeker comprising a wide-band passive anti-radar antenna system (3) at the rear of a radome (1), operating at relatively low radar frequencies in an amplitude comparison tracking mode, and a high-frequency (W-band) active amplitude-comparison antenna system (5) in the nose of the radome (1) and having a common boresight with the anti-radar system. The active system employs coarse phase shift steering (31, 41) of the antenna ‘beam’ for the transmit and, optionally, also, the receive ‘beam’. The high frequency and the use of phase shift steering both help to keep down the size of the active radar thus enabling it (5, 7, 9) to be positioned far forward in the nose of the radome (1) so as not to obscure the field of the anti-radar system (3).

Abstract: A radar and laser detection device for mounting upon a motorcycle is described which provides increased concealment, security, safety, ease of use and functionality specific to the needs of motorcycle drivers. A method of semi-permanently mounting the device is described which requires no permanent alterations to the vehicle while providing improved visibility of alarm signals, a simple display technique, and controls which do not require the operator to remove his/her hands from the vehicle handlebars.

Abstract: The present invention relates generally to a combined radar and laser detector that enables a driver to drive safely and, more particularly, to a combined radar and laser detector, in which a signal receiving module for receiving various kinds of signals including traffic information and an information display module for informing a driver of the signals are separated, the signal receiving module and information display module are constructed to communicate with each other using wireless communication, and the information display module is integrated with a Global Positioning System (GPS) receiver detecting GPS data related to the location and speed of a moving vehicle, so that the combined radar and laser detector can not only provide accurate traffic information to the driver, but also allow the installation thereof to be easy, the miniaturization thereof to be achieved, and power consumption to be minimized.

Abstract: A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. In one embodiment of the invention, a set of models is used to compute antenna characteristics as a function of frequency, gain, power, beam width, scan and polarization. Data such as actual antenna gain vs azimuth for several polarizations may also be used, thereby reducing the amount of data needed for the antenna modeling purposes.

Abstract: An intelligent microwave detecting system comprises: a power supply source for supplying the electric power to a passive electric equipment which is connected to the power supply source, an output controller connected to the circuit including the power supply source and the passive electric installation so as to control operation of the passive electric installation, a microwave detector connected with the output controller to transmit all-directional microwave to a defined three dimensional space so as to detect the state of moving objects therein and send a detection signal to the output controller for judging should the passive electric installation be actuated. The microwave radiated from the microwave detector is all-directional and capable of piercing through the building structure and is resistant to the environmental interference therefore a wide range and precise detection can be expected, besides, the detector of this type can detect non-heat generating intrusion objects.

Abstract: Methods and apparatus for storing, accessing, generating and using information about speed limits and speed traps are described. The system includes a positional sensor such as a GPS device. Position information is used to access a database of speed limit and/or speed trap information. The database may be local or remote. Access to a remote database may be achieved using a wireless communications device such as a wireless (cellular) modem. Encountered speed traps are logged in response to the activation of a speed trap alert button by a user of the device or the output of a radar/laser detector. Speed trap position, date and time information is transmitted to the remote database system. Speed limit information is used to control the speed of the automobile as part of a cruise control operation and/or is used to provide the motor vehicle operator with warnings, e.g., that the applicable speed limit is being exceeded.

Abstract: A pulse descriptor word (PDW) collector, including an extractor coupled to a computer, for passively collecting radio frequency (RF) data received by an electronic surveillance system (ESS). It is integrated into the ESS after a receiver (which converts RF pulse data to digitized PDWs) and parrallel to a presorter. Using two RAM circuits, the extractor forms a read/write loop to ensure that no PDWs are lost in the collection process. The extractor simultaneously writes onto one RAM while reading from the other RAM to the computer. The read/write functions of the RAMs are switched at predetermined interrupts. Collected data is stored on the computer hard drive. The computer controls the entire collection process by using data management software, graphical user interface software and sequencing software. Stored data is available on demand for analysis and is used to monitor, assess, and update the threat identification capabilities of the particular ES system.

Abstract: A system and method for focusing electromagnetic energy on a moving target. Generally, the inventive system sends a pilot beam to a target and analyzes a return wavefront to ascertain data with respect to any distortions and other phase and/or amplitude information in the wavefront. This information is then used to pre-distort an output beam by so that it is focused on the target by the intervening distortions. In an illustrative embodiment, the pilot beam is provided by a beacon laser mounted off-axis with respect to the output beam. The reflected wavefront is received through a gimbaled telescope. Energy received by the telescope is detected and processed to ascertain wavefront aberrations therein. This data is used to predistort a deformable mirror to create an output beam which is the phase conjugate of the received wavefront. In a first alternative embodiment, a nonlinear optical phase-conjugate mirror is employed to generate the required wavefront-reversed replica of the received wavefront.

Abstract: Signals-of-interest are identified by distinguishing such signals from signals constituting environmental or internal receiver noise. A received signal is rapidly sampled in order to set a dynamic, system threshold. Signals above the threshold constitute signals-of-interest.

Abstract: A detection device is described configured for receiving radar and laser signals. The detection device is a self contained stand alone assembly having a watch like configuration and positionable on an arm of a vehicular driver such as a motorcyclist. The detection device is a warning receiver configured to receive signals, identify the signals as being in frequency bands for vehicular speed measuring systems used in law enforcement, and providing a warning to the vehicular driver. In addition, the detection device is configured for calculating the angle and distance from the detection device to the source of the speed measuring system.

Abstract: A motor-vehicle navigation-based speed limit recording and warning system designed to automatically inform drivers when they are exceeding the posted speed limit on a particular roadway. The system includes a navigational system that displays a plurality of roadways on a map and the motor vehicle's location thereon. The navigational system also includes a “mark” point feature or function that enables a driver to manually enter “mark” points and assign a speed limit to each “mark” point. The “mark” point feature or function may be directly coupled to the motor vehicle's speedometer so that the driver may simultaneously input both the motor vehicle's current speed and the “mark” point on the roadway.

Abstract: A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. If a dwells assigned frequency bandwidth is small and not a multiple of the minimum frequency spacing between dwells (tuning step), then coverage gaps can be inadvertently introduced between adjacent dwells. A system and method are provided for detecting this condition and generating dwells without accidental loss of frequency coverage for any combination of bandwidth and step size.

Abstract: Apparatus and method for multi-band, multi-frequency signal detection and transmission, comprising a multi-band wideband antenna, a receiver based on a plurality of synthesized down-converters and a plurality of synthesized programmable multi-channel phase-locked LOs, a DDS and a synthesized complex I/Q phase-detector, a control center based on a DSP connected with an ADC, plurality of DACs and an FPGA, and a plurality of synthesized programmable multi-channel transmitters synchronized with the DDS.

Abstract: A laser transponder for disabling a laser-based speed monitor which is transmitting a monitor laser beam at a moving vehicle by transmitting a jamming laser beam to the laser-based speed monitor. The monitor laser beam is in the shape of a monitor signal that includes monitor pulse trains emitted at a first frequency, while the jamming laser beam is in the shape of a jamming signal that includes jamming pulse trains emitted at a second frequency.

Abstract: A radar detector (10) includes a first period detector (76, 122), a second period detector (96, 120) and a third period detector (86, 124) within a multi-period periodicity validator 38. The first period detector (76, 122) detects radar pulses exhibiting one-half of an expected pulse period (48), the second period detector (96, 120) detects radar pulses exhibiting the expected pulse period (48), and the third period detector (86, 124) detects radar pulses exhibiting twice the expected pulse period (48). A plurality of pulse-train records (40) can simultaneously track a plurality of possible pulse trains. A control element (84, 136, 138) accounts for missing pulses and corrects the expected pulse period when missing pulses have caused the expected pulse period to be inaccurate.

Abstract: The present invention relates generally to a combined radar and laser detector that enables a driver to drive safely and, more particularly, to a combined radar and laser detector, in which a signal receiving module for receiving various kinds of signals including traffic information and an information display module for informing a driver of the signals are separated, the signal receiving module and information display module are constructed to communicate with each other using wireless communication, and the information display module is integrated with a Global Positioning System (GPS) receiver detecting GPS data related to the location and speed of a moving vehicle, so that the combined radar and laser detector can not only provide accurate traffic information to the driver, but also allow the installation thereof to be easy, the miniaturization thereof to be achieved, and power consumption to be minimized.

Abstract: A radar apparatus for a vehicle includes a casing, a correction member, and a selection indication. The casing includes a functional portion, which performs searching, and a reference surface. The correction member includes a plurality of correction surfaces. The selection indication indicates which one of the correction surfaces and the reference surface an attachment-direction adjustor is to be placed on during an attachment operation of the radar apparatus to the vehicle.

Abstract: A radar detector for alerting an operator of a motor vehicle to an incoming police radar signal. This radar detector includes a microprocessor; a circuit coupled to the microprocessor for detecting the incoming police radar signal; and a global positioning system receiver coupled to the microprocessor. Upon detection of an incoming radar signal, the radar detector can utilize the position, velocity, and/or heading data from the global positioning system receiver to determine whether to generate an alert.