A system comprises a computer including a processor. The processor receives from each of a plurality of vehicles within a region, a respective plurality of messages and identifies for each of the plurality of vehicles, a respective communications discontinuity during which an expected message fails to be received from the respective vehicle. The processor determines, for each communications discontinuity, discontinuity edge locations at each of a beginning of the communications discontinuity and an end of the communications discontinuity. The processor further determines an interference node location based on the discontinuity edge locations.

A control unit which includes at least one processor designed to carry out the following steps: tamper-proof detection of operational safety-related integrity monitoring data of a system which is equipped with an operational safety-critical function and which is connected or can be connected to a communications network by radio transmission, the integrity monitoring data describing integrity monitoring of the system and external access to the radio transmission; and tamper-proof recording and/or storing of the integrity monitoring data in order to evaluate same in the event of a use of the operational safety-related function is provided.

A law enforcement (LE) data processing system (DPS) includes a processor that executes a LE security event notification and dispatch (SEND) utility. The LE DPS receives, from a tracking system communicatively coupled to the LE DPS, an enhanced security event notification (ESEN) that includes information identifying a security event, a location at which the security event occurred, and additional distinguishing details corresponding to entities involved in and affected by the security event. The LE DPS selectively transmits information from the updated ESEN to at least one LE dispatch server supporting LE personnel within one of (i) a geographic vicinity of the location of the security event and (ii) a calculated zone of recapture, the additional distinguishing details enabling the LE personnel to receive a more complete set of relevant details at a LE field device that enables more accurate identification, tracking, and resolution by LE personnel of the security event.

A communication system receives a jammed signal including a sequence of complex numbers encoding one or combination of symbols transmitted by multiple transmitters. The system transforms the sequence of complex numbers into an image of real numbers having at least two columns and multiple rows, with real values of real and imaginary parts of each complex number forming different columns but the same row of the first image, processes the image with a neural network trained to suppress the wideband signal in the received signal, and detects the symbols transmitted by the transmitters from the de-jammed signal.

An exemplary radio fingerprint-based indoor localization method and system is disclosed that is resistant to spoofing or jamming attacks (e.g., at nearby radios, e.g., access points), among other types of interference. The exemplary method and system may be applied in the configuring of a secured convolutional neural network (S-CNNLOC) or secured deep neural network configured for attack-resistant fingerprint-based indoor localization.

In order to detect a replay attack in a speaker recognition system, at least one feature is identified in a detected magnetic field. It is then determined whether the at least one identified feature of the detected magnetic field is indicative of playback of speech through a loudspeaker. If so, it is determined that a replay attack may have taken place.

An LED light and communication system is in communication with a broadband over power line communications system. The LED light and communication system includes at least one optical transceiver. The optical transceiver includes a light support having a plurality of light emitting diodes and at least one photodetector attached thereto, and a processor. The processor is in communication with the light emitting diodes and the at least one photodetector. The processor is constructed and arranged to generate a communication signal.

A system and method provide automatic RF path gain calibration independent of RF interference levels to preserve solution trust capabilities. After a system is powered ON, or a new antenna is attached (hot swap), a smart antenna assembly combined with a jammer power estimator within an RF receiver functions to autonomously measure internal gains within the RF path, calibrate the new antenna installation, and thereby measure a level of interference associated with the external environment from that point forward. A controller commands the antenna calibration retrieving antenna details and RF path gain calibration while measuring local jamming at the receiver input. Should the controller determine a level of jamming effectiveness is present, it offers a user a display of the local jamming levels enabling the user accurate theater decision making regarding the accuracy and availability of desirable signal.

The presently disclosed method and system exploits a received signal strength of a jamming signal emitted by a jammer to allow navigation of an object through an area containing the jamming signal. In one embodiment, the method comprises receiving a plurality of navigation data and a jamming signal when entering a jamming zone. The method then comprises repeatedly measuring the strength of the jamming signal while moving within the jamming zone. The method then comprises determining the location of the jammer based on the movement within the jamming zone and the strength of the jamming signal at multiple coordinates. The method further comprises performing movement to destination coordinates within the jamming zone at least partially based on the jammer location and the strength of the jamming signal.

The present disclosure provides a method for radio frequency interference processing, comprising acquiring a first signal strength value of the first radio frequency antenna; determining whether the first signal strength value is lower than a preset threshold; and stopping the information display on the first area when the first signal strength value is lower than the preset threshold. The method reduces the interference from display components to radio frequency components, improve the efficiency of radio frequency communication.