Abstract: In the subject system for Bluetooth audio role-based scheduling, an electronic device (e.g., a mobile phone), may receive streaming audio over a cellular connection, e.g. LTE, and may stream the audio to a head unit of a vehicle, e.g. via Bluetooth. The electronic device may also concurrently communicate with other electronic devices via, e.g., Wi-Fi, Bluetooth, and/or BTLE. The electronic device may determine the Bluetooth/communication capabilities of the HU device, such as buffer size, and the electronic device may proactively configure Bluetooth settings/parameters for communicating with the HU device based on the capabilities of the HU device. The electronic device may also adaptively modify scheduling for communications with other electronic devices based on the determined capabilities of the HU device.

Abstract: A method for providing and applying Precise Point Positioning-Integer Ambiguity Resolution (PPP-IAR) corrections for a Global Navigation Satellite System (GNSS). In a GNS signal correction system, PPP-IAR corrections (ambiguities plus receiver and satellite hardware delays) are calculated based on observation data (Pi,a, ?i,a) of n satellites for individual reference stations using a functional model, and these individual PPP-IAR corrections are merged into one single and larger set of PPP-IAR corrections. In a broadcast system, the (merged) PPP-IAR corrections are encoded at a System Control Centre (SCC) and transmitted to mobiles. In a mobile system a similar functional model is used to calculate a correction ?x to an a priori position.

Abstract: Apparatus and methods permit the use of a microelectromechanical systems (MEMS) oscillator in a satellite positioning system receiver, such as a Global Positioning System (GPS) receiver. Techniques to ameliorate jitter or phase noise disadvantages associated with MEMS oscillators are disclosed. For example, a receiver can use one or more of the following techniques: (a) use another source of information to retrieve ephemeris information, (2) perform advanced tight coupling, and/or (3) use a phase-locked loop to clean up the jitter or phase noise of the MEMS oscillator. With respect to advanced tight coupling, an advanced tight coupling processor can include nonlinear discriminators which transform I and Q data into linear residual measurements corrupted by unbiased, additive, and white noise. It also includes an amplitude estimator configured to operate in rapidly changing, high power noise; a measurement noise variance estimator; and a linear residual smoothing filter for input to the navigation filter.

Abstract: A method for determining an indicator of an amount of noise comprised within a received signal within a satellite communication network or a GNSS involves extracting a received modulating signal from the received signal. An estimate of the transmission delay is determined based on the in-phase component of the modulating signal. A prompt replica of the modulating signal is generated using the estimate of the transmission delay. A prompt quadrature correlation of the quadrature component of the received modulating signal and of the quadrature component of the prompt replica is determined, and the indicator of the amount of noise comprised within the received signal is determined based on the prompt quadrature correlation.

Abstract: A telecommunications system includes a satellite receiver programmed to estimate a Doppler frequency associated with a satellite signal. Estimating the Doppler frequency includes sampling the satellite signal, resampling the sampled satellite signal, and compensating for a frequency offset associated with the satellite signal. An example satellite receiver includes a sampling device programmed to sample the satellite signal, a resampling device programmed to sample the sampled satellite signal and output a resampled satellite signal, and an incremental phase modulator programmed to filter a frequency offset from the resampled satellite signal.

Abstract: Disclosed is a technique that can provide one or more countermeasures against spoofers. A direction from which a spoofing attack occurs is identified. A beamformer can control an antenna pattern of a CRPA to null out signals from that direction, which can assist a GNSS receiver to avoid error induced by the spoofing attack. Further, after two or more observations, the location of the spoofer can be identified.

Abstract: A method or apparatus to provide a global positioning system receiver is described. The Personal navigation system includes at least one motion sensor, the motion sensor capable of identifying a user activity, and distinguishing between walking and driving, or other manual v. mechanical locomotion. The system automatically switches modes to the appropriate format.

Abstract: The disclosure provides a method and apparatus for determination of a control policy for a rigid body system, where the rigid body system comprises a sensor and a plurality of actuators designed to maneuver the rigid body system and orient the sensor toward a plurality of defined vertices, such as geographic points on the earth surface. A processor receives input data describing an initial state of the rigid body system and further receives a plurality of candidate vertices for potential targeting by the sensor. The processor additionally receives an intrinsic value for each vertex, reflecting the relative desirability of respective vertices in the plurality of vertices. The processor determines an appropriate control policy based on the vertices, the intrinsic values, and the rigid body system through a formulation of the determination process as an optimization problem which actively considers various constraints during the optimization, such as maneuvering and observation constraints.

Abstract: A satellite-based positioning system (SPS) signal processing technique re-samples a received series of PRN sequences from an SPS satellite to align them with a nominal sampling rate for a corresponding series of perfect reference PRN replica sequences.

Abstract: Specifically programmed, integrated motor vehicle dangerous driving warning and control system and methods comprising at least one specialized communication computer machine including electronic artificial intelligence expert system decision making capability further comprising one or more motor vehicle electronic sensors for monitoring the motor vehicle and for monitoring activities of the driver and/or passengers including activities related to the use of cellular telephones and/or other wireless communication devices and further comprising electronic communications transceiver assemblies for communications with external sensor networks for monitoring dangerous driving situations, weather conditions, roadway conditions, pedestrian congestion and motor vehicle traffic congestion conditions to derive warning and/or control signals for warning the driver of dangerous driving situations and/or for controlling the motor vehicle driver use of said cellular telephone and/or other wireless communication devices.

Abstract: Low cost semiconductor manufacturing techniques have provided consumers with a wide range of electronic devices supporting communications according to multiple standards. These electronic devices will be deployed within many operational jurisdictions, particularly with roaming features, such as Japan, Europe, Asia-Pacific, South America and North America. However, operational compliance requirements can vary substantially with these different jurisdictions. Current electronic devices are designed, manufactured, calibrated and operated according to a specification providing compliance with broad range of operational jurisdictions despite the performance limitations this applies in many of the operational jurisdictions. Accordingly, there is provided a method of dynamically configuring the electronic device based upon a geographically based determination of the operational jurisdiction from global navigation systems data received by the electronic device.

Abstract: Systems, methods, and apparatus for geo-location using known target co-calibration are disclosed. In one or more embodiments, a method for geo-location of a target involves receiving, by at least three elements on a vehicle, at least one station signal from at least one station in a known direction from the vehicle. The method further involves calculating, by at least one processor, a roll estimate and a pitch estimate of the vehicle using at least one station signal. Also, the method involves receiving, by at least three elements on the vehicle, at least one target signal from the target. Further, the method involves calculating, by at least one processor, an azimuth direction and an elevation direction of the target using the roll estimate, the pitch estimate, and at least one target signal.

Abstract: The present application provides a method and a system for acquiring and distributing location-related information.

Abstract: A wireless receiver being capable of determining its velocity with respect to a number of wireless transmitters is provided. The wireless receiver includes a communication interface for receiving a number of carrier signals originating from the number of wireless transmitters, and a processor being configured to determine a number of carrier phases of the carrier signals at two different time instants, to determine a number of carrier phase differences from the determined number of carrier phases for each carrier signal between the two different time instants, to determine a location matrix indicating a geometric relationship between a location of the wireless receiver and a number of locations of the number of transmitters, and to determine the velocity of the wireless receiver upon the basis of the number of carrier phase differences and the location matrix.

Abstract: A method and system of symbol measurement and combining (SMaC) provides near-optimal performance for each user independently by relying on rapid digital beamforming with near-ideal convergence properties. This approach is also provides near-ideal performance without any knowledge of user/jammer location and adapts instantly as those locations change. An iterative joint estimation method is used to determine a covariance matrix RXX, and a user beamsteering vector, ?.

Abstract: Methods, systems, and apparatus for restricting use of a network element outside an authorized location range are disclosed. In one aspect a method includes obtaining, for a network element of a passive optical network, an identifier and ranging information corresponding to a present location of the network element; identifying, from a database and based on the identifier of the network element, stored ranging information specifying a previous location of the network element; determining, based on a comparison of the ranging information with the stored ranging information, that the location of the network element has changed more than a specified amount; and outputting an alert in response to determining that the location of the network element has changed more than a specified amount.

Abstract: A navigation module and method for providing an INS/GNSS navigation solution for a device that can either be tethered or move freely within a moving platform is provided, comprising a receiver for receiving absolute navigational information from an external source (e.g., such as a satellite), an assembly of self-contained sensors capable of obtaining readings (e.g. such as relative or non-reference based navigational information) about the device, and further comprising at least one processor, coupled to receive the output information from the receiver and sensor assembly, and operative to integrate the output information to produce an enhanced navigation solution. The at least one processor may operate to provide a navigation solution by benefiting from nonlinear models and filters that do not suffer from approximation or linearization and which enhance the navigation solution of the device.

Abstract: An object tracking device, method and non-transitory computer-readable storage medium are disclosed.

Abstract: The present disclosure relates to a sensor network, Machine Type Communication (MTC), Machine-to-Machine (M2M) communication, and technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the above technologies, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Disclosed are an apparatus and method for generating distress signals in a mobile device. The apparatus comprises a coil antenna for NFC communication, a first communication circuit configured to perform the NFC communication using the coil antenna in a normal mode, a second communication circuit transmitting a distress signal having a rescue-dedicated frequency through the coil antenna in a distress mode, a switch connecting the coil antenna to the first communication circuit or the second communication circuit, and a processor determining the normal mode or the distress mode to control the switch.

Abstract: A communication device, method, and system. A network is adapted to detect and cause one or more network services to the wireless device to be disabled upon detecting that the wireless device is within a predetermined zone. The network service may include voice communication, text messages, emails, and data communication. The predetermined zone may include a speeding zone, a hospital zone, a movie theater zone, a church zone, or a performing arts theater zone. The predetermined zone may be a government law or a regulation, such as a State or a City. The predetermined zone may also be determined by a predetermined radius within the operation of the device.

Abstract: Systems and methods for synchronizing a global navigation satellite system (GNSS) receiver with a GNSS signal are provided. In one example, a GNSS receiver may include one or more sets of 20 GNSS channels that are each configured to integrate a received GNSS signal over a 20 millisecond accumulation window to output a navigation message bit. The accumulation windows of the 20 GNSS channels may be delayed relative to other windows of the 20 GNSS channels by 1 millisecond. The GNSS receiver may identify one of the 20 GNSS channels having the correct synchronization with the GNSS signal based on the navigation message bits output by the 20 GNSS channels. The identified GNSS channel having the correct synchronization with the GNSS signal may be used to determine a location of the GNSS receiver.

Abstract: Methods and apparatuses for analyzing a sequence of images for an object are disclosed herein. In a general embodiment, the method identifies a region of interest in the sequence of images. The object is likely to move within the region of interest. The method divides the region of interest in the sequence of images into sections and calculates signal-to-noise ratios for a section in the sections. A signal-to-noise ratio for the section is calculated using the section in the image, a prior section in a prior image to the image, and a subsequent section in a subsequent image to the image. The signal-to-noise ratios are for potential velocities of the object in the section. The method also selects a velocity from the potential velocities for the object in the section using a potential velocity in the potential velocities having a highest signal-to-noise ratio in the signal-to-noise ratios.

Abstract: The invention relates to an automatic checking method for clock synchronization, comprising the following steps: (1) regularly acquiring clock signals sent by a Beidou signal source, a GPS signal source and an SNTP signal source; (2) performing subtraction to the clock signals of the Beidou signal source and the GPS signal source and evaluating the absolute value of the difference; at the same time, performing subtraction to the clock signals of the Beidou signal source and the SNTP signal source and then evaluating the absolute value of the difference and finally judging the results of the two differences; and (3) constantly repeating steps (1) and (2). The operations in the present invention can efficiently avoid the problems in the existing technology, guarantee the consistency and accuracy of system time, and guarantee the stable and safe operation of the system and the normal operation of other power grid businesses.

Abstract: A receiver determines a roll rate of a spinning projectile that receives a signal from a satellite or terrestrial transmitter at a directional antenna fixed to the projectile. The receiver tracks a code phase and a rate of change thereof of the received signal relative to a local model signal corresponding to the transmitter. A roll correlator of the receiver correlates the received signal with the model signal based on (i) the tracked code phase and rate, and (ii) a roll-correlator integration time assumed to produce a predetermined number N of correlation samples per revolution of the antenna, to produce sequential correlation samples for each of successive revolutions of the antenna. The receiver determines a time difference between successive periods of observed signal reception based on the correlation samples, and determines a roll rate based on the time difference.

Abstract: A mobile telephone adaptable to a restricted-access area includes an RF transmitter which is intended to operate in a restricted-access area. It further includes a reduced-power transmission element (9, 10, 13; 22-25) which can be activated instead of the full-power transmitter (7). An operating cell of such telephones is also described.

Abstract: A device implementing adaptive gain table selection based at least on coexistence signaling may include at least one processor circuit. The at least one processor circuit may be configured to identify that a packet is scheduled to be received by a receiver and retrieve at least one transmission indicator that indicates whether at least one transmitter is transmitting, where the at least one transmitter is collocated with the receiver within a device. The at least one processor circuit may be further configured to select a first gain table for reception of the packet by the receiver when the at least one transmission indicator indicates that the at least one transmitter is transmitting, otherwise selecting a second gain table for reception of the packet by the receiver. The at least one processor circuit may be further configured to apply gain to the receiver based at least on the selected gain table.

Abstract: A carrier phase correction sub-system for use with a GNSS receiver that utilizes an active null and beam steering controlled radiation pattern antenna (CRPA) determines carrier phase corrections that compensate for antenna phase center movements in the carrier phase measurements taken from the CRPA filtered signal. The carrier phase sub-system utilizes measured radiation patterns, angles of incidence of the satellite signals at the CRPA, and the applied weights to determine carrier phase corrections to be applied to the CRPA filtered signals from which the carrier phase measurements are later taken or to the carrier phase measurements depending on the dynamics of the jamming signal. With the carrier phase corrected, the GNSS receiver may utilize known RTK techniques to resolve carrier cycle ambiguities.

Abstract: A method to improve estimation and stabilization of heading in an inertial navigation system is provided. The method includes operating an inertial measurement unit oriented in a first orientation, forward-rotating the operational inertial measurement unit by a selected-rotation angle about a Z-body axis of the inertial navigation system, wherein the inertial measurement unit is oriented in a second orientation, operating the inertial measurement unit oriented in the second orientation, reverse-rotating the operational inertial measurement unit by the selected-rotation angle about the Z-body axis, wherein the inertial measurement unit is oriented in the first orientation, continuously receiving information indicative of an orientation of the inertial measurement unit at a rotational compensator, and continuously-rotationally compensating navigation module output at the rotational compensator, wherein output of the rotational compensator is independent of the rotating.

Abstract: System and method for mean phase compensation of code and carrier phase distortions induced by Space Time Adaptive Processing (STAP) filters used for removing interferences from received GPS signals. The phase distortion is mitigated (without the use of beamforming) using a single STAP filter for processing the GPS satellite channels in which appropriate bundling of constraints is applied to the filter weights. The complete solution can be contained in the antenna electronics with no required changes to the legacy GPS receiver.

Abstract: An electronic device is operable to determine a Global Positioning System (GPS) mode of operation based upon accelerometer input. The electronic device includes a communications interface, a GPS receiver, an accelerometer module, and processing circuitry. The processing circuitry receives an accelerometer output from the accelerometer module and compares the accelerometer output to a plurality of acceleration signatures. Based upon the comparison, an acceleration profile is selected. A GPS mode of operation is selected for the GPS receiver based upon the acceleration profile. The acceleration profile can be selected based upon one or more types of communications being serviced by the communications interface. In one embodiment, a selected GPS mode of operation selected corresponds to a distinct operating environment.

Abstract: Disclosed herein are system, method, and computer program product embodiments for adapting to malware activity on a compromised computer system. An embodiment operates by detecting an active adversary operating malware on a compromised system. A stream of data traffic associated with active adversary is intercepted. The stream of data traffic includes a command and control channel of the active adversary. The stream of data traffic is accessed. An emulation of the command and control channel is provided. An analysis of the accessed stream of traffic is executed. A plurality of response mechanisms is provided. The plurality of response mechanisms is based in part on the analysis of the stream of data traffic and a custom policy language tailored for the malware.

Abstract: Inventive aspects include a method, apparatus, and system for reducing power consumption in GNSS receivers. Such may include receiving timing and accuracy parameters, processing pre-positioning information in preparation for signal acquisition or signal track, determining whether a plurality of satellites are in-view, applying an ON signal to one or more components of an analog signal processing section and to one or more components of a digital signal processing section, and within a dynamic time window, acquiring signals of the plurality of in-view satellites and simultaneously applying, in real-time, signal sensing logic to the acquired signals, until determining that a position fix of the electronic receiver is obtained. Responsive to the determination that the position fix is obtained, an OFF signal may be applied to the one or more components of the analog signal processing section and to the one or more components of the digital signal processing section.

Abstract: Systems and methods for mitigating known interference at a receiving device are provided. A signal from a transmission source is received by a receiving device that is affected by an interference source. At least one of a first pilot signal associated with the transmission source and a second pilot signal associated with the interfering source is determined. The first pilot signal includes information broadcast from the transmission source and the second pilot signal includes information broadcast from the interference source. Interference caused by the interference source is mitigated from the received signal using at least one of the first pilot signal and the second pilot signal.

Abstract: A method and system are described for use in a portable electronic device that includes a wireless local area network (WLAN) subsystem, a cellular packet data subsystem for communicating packet data, a cellular voice subsystem for communicating cellular voice information, and a processing subsystem. In the described embodiments, the WLAN subsystem establishes a connection to a WLAN and the WLAN subsystem then determines the signal strength of the connection to the WLAN. Then, on condition that the signal strength exceeds a threshold, the processing subsystem selects the WLAN subsystem for the communication of packet data to and from the portable electronic device, and puts the cellular packet data subsystem into a reduced power state that reduces the power consumption of the cellular packet data subsystem. Packet data is then communicated to and from the portable electronic device using the WLAN subsystem while the cellular data subsystem is in the reduced power state.

Abstract: A method of processing received satellite signals is provided. The method includes detecting frequency, power level, code phase and doppler frequency of a plurality of satellite signals and frequency and power level of a plurality of spurious signals. The plurality of spurious signals is ranked based on one or more ranking parameters. A first subset of the plurality of spurious signals which are ranked equal or above a threshold rank are processed through a plurality of notch filters and a second subset of the plurality of spurious signals which are ranked below the threshold rank are processed through a weeding filter.

Abstract: A fading simulator is provided, which includes a noise generator that generates an additive white Gaussian noise signal, receives a test signal to be input to a mobile communication terminal as a test target, and adds, to the test signal, a radio wave scattering effect, using the additive white Gaussian noise signal. The fading simulator is provided with setting means for setting for causing the noise generator to generate a same additive white Gaussian noise signal as the additive white Gaussian noise signal in the first test, when a first test is performed on the mobile communication terminal, and also for setting for causing the noise generator to generate the additive white Gaussian noise signal of the predetermined level when a second test for re-simulating the first test is performed after the first test.

Abstract: Systems and methods for monitoring broadband radio frequency interference are provided. In certain embodiments, a method comprises calculating a smoothed carrier to noise value for a received signal on a processing unit, wherein the received signal is associated with a receiver and at least one satellite; calculating an average jammer power to noise power value for the receiver; calculating an instantaneous carrier to noise value for the received signal based on the average jammer power to noise power value and the smoothed carrier to noise value; comparing the instantaneous carrier to noise value to an exclusion threshold, and determining whether to exclude the received signal from calculations of global positioning data based on the comparison of the instantaneous carrier to noise value to the exclusion threshold; and when the received signal is excluded, monitoring the received signal for readmittance to the calculation of global positioning data.

Abstract: One embodiment of the present invention provides a signal-recording system. During operation, the system receives a plurality of radio frequency (RF) signals, separates the RF signals to obtain a first group of RF signals in a first RF band and a second group of RF signals in a second RF band, and simultaneously down-converts the first group of RF signals to a first group of low intermediate-frequency (low-IF) signals in a first IF band and the second group of RF signals to a second group of low-IF signals in a second IF band. The system further converts the first group of low-IF signals and the second group of low-IF signals to the digital domain, and simultaneously processes all of the converted low-IF signals.

Abstract: Ultrasonic locationing of a tag with an emitter transducer operable to emit a single frequency ultrasonic burst. A receiver with at least two microphones is operable to receive the ultrasonic burst. Each microphone receiver contains two narrowband filters to extract frequencies above and below the ultrasonic burst frequency. A processor derives a low frequency waveform indicative of the phase difference between the dual frequency pulses coming from each microphone receiver. A correlator then determines the time difference of arrival (TDOA) between each microphone receiver by correlating the phase difference waveforms. This invention enables the creation of an ultrasonic locationing system requiring microsecond accuracy on TDOA data, as is necessary with microphone spacing of less than one foot, while using a simple single high frequency emitter source.

Abstract: An electronic device is operable to determine a Global Positioning System (GPS) mode of operation based upon accelerometer input. The electronic device includes a communications interface, a GPS receiver, an accelerometer module, and processing circuitry. The processing circuitry receives an accelerometer output from the accelerometer module and compares the accelerometer output to a plurality of acceleration signatures. Based upon the comparison, an acceleration profile is selected. A GPS mode of operation is selected for the GPS receiver based upon the acceleration profile. The acceleration profile can be selected based upon one or more types of communications being serviced by the communications interface. In one embodiment, a selected GPS mode of operation selected corresponds to a distinct operating environment.

Abstract: Method and system for determining, via sensor network, position of GNSS receiver arranged in a motor vehicle intentionally is impaired in a targeted manner by interference source. Sensor network includes traffic route points having at least one sensor to detect a presence of interference source. Method includes detecting, as motor vehicle passes one of traffic route points, an interference signal emitted by interference source and/or a received signal of GNSS receiver impaired by interference source by the at least one sensor of the one traffic route point; processing the detected signals to establish whether interference source is present in passing motor vehicle; and when the presence of interference source established, generating information that signals at least a location of the one traffic route point and the interference source in the motor vehicle. A position of the motor vehicle is determined from the location of the traffic route point.

Abstract: A method for the acquisition of a radionavigation signal carrying a spreading code with a quasi-infinite period, where the signal is sampled in baseband on a delay line and correlated with a local spreading code replica, the sampled signal is shifted on the delay line from one correlation to the other, where in order to correlate the signal with the local replica of the code, a plurality of sequences of the spreading code are generated, the code sequences being of the same duration, equal to the duration of the signal sampled on the delay line, and associated with the consecutive time ranges in the temporal alignment search space, where each of the code sequences is correlated with the signal sampled in a respective correlation operation, the correlation operations being executed in parallel for the different sequences of code.

Abstract: A satellite-based SAR system having a space segment with a plurality of satellites and a ground segment with one or a plurality of ground stations is provided. A satellite receives a position report from an emergency transmitter in its service area and forwards it to a ground station. The ground segment stores the position of the emergency transmitter, received with the last position report, in a management system for emergency transmitters. The emergency transmitter sends position reports to the satellite such that the reception of position reports at the satellite is coordinated such that at any time only position reports arrive which differ with regard to their signal parameters such that simultaneous reception is possible. A rescue operation is initiated for the emergency transmitter if no deactivation message has been received from the emergency transmitter and no position report is received from the emergency transmitter within a specified period.

Abstract: Systems and methodologies are described that facilitate blanking on portions of bandwidth, such as a subset of interlaces, utilized by communicating devices that are dominantly interfered by a disparate device in wireless communications networks. The portions of bandwidth can relate to critical data, such as control data, and one or more of the communicating devices can request that the dominantly interfering device blank on one or more of the portions. The communicating devices can subsequently transmit data over the blanked portions free of the dominant interference. Additionally, the dominantly interfering device can request reciprocal blanking from the one or more communicating devices.

Abstract: An apparatus and method for detecting a deception signal in a global navigation satellite receiver is disclosed, the apparatus for detecting the deception signal in the global navigation satellite receiver including an identifier to identify output data output from a global navigation satellite receiver receiving an input of a global navigation satellite signal, and a determiner to determine whether the global navigation satellite signal is a deception signal and a normal signal.

Abstract: In a global navigation satellite system, a spoofing signal received at a first point in time is processed to generate measurement data including a carrier phase value, and characteristics of a spoofing signal corresponding to a second point in time at which an anti-spoofing signal is to be generated are predicted on the basis of the measurement data at the first point in time. An anti-spoofing signal is generated on the basis of the predicted characteristics of the spoofing signal.

Abstract: A system and method for testing the integrity of signals incoming to a satellite navigation system. The method is implemented with an array of antenna elements, and a receiver connected to each antenna element. The receivers simultaneously and continuously make measurements on all tracked signals. Each receiver measures the carrier phase of an incoming signal. Based on the carrier phase differences between antenna elements and the distance between them, the azimuth and elevation of the signal source can be calculated. This measured angle of arrival can then be compared to an expected angle of arrival to determine if the signal source is legitimate. The system and method can be also applied to determining the angle of arrival of sources of interference, and to mitigating the effects of both illegitimate and interfering signals.

Abstract: Method of detecting interference in a satellite radio-navigation signal, characterized in that it comprises the following steps: determining a first temporal position for which the correlation between the said signal and a local spreading code, offset by the said position, is maximum; determining a plurality of measurements of correlation between the said signal and a local spreading code offset by a plurality of secondary temporal positions, the said plurality of secondary temporal positions and the said first temporal position being regularly spaced; determining, for a plurality of correlation measurement pairs formed by two measurements at two consecutive temporal positions, the phase difference between the two correlation measurements of the said pair; calculating an item of information representative of the standard deviation of the said phase difference; and comparing the said item of information with a detection threshold configured at least as a function of the ratio of the powers of the signal and

Abstract: A method and device for detecting the presence of a deception scheme intended to thwart a satellite navigation system (SNS). A detector receives “receiver measurements” of various types from the SNS receiver. It conditions these values, so that they may be readily used by a process that determines whether the receiver is operating in a statistically normal state.

Abstract: Techniques for compensating for interference in a Global Navigation Satellite System (GNSS) receiver of a mobile device are provided. An example method according to these techniques includes determining transmission band information and channel tuning information associated with an operating configuration of a Wireless Wide Area Network (WWAN) transceiver of the mobile device, identifying interference compensation data using the transmission band information and the channel tuning information for compensating for interference caused by the WWAN transceiver at the GNSS receiver, and dynamically configuring notch filters of the GNSS receiver according to the interference compensation data.