The present invention relates to an apparatus and method for filtering advertisements of a target device by using friendly jamming with a beamforming antenna to jam at least one advertisement channel in at least one specific sector of non-target devices. Thus, a master device can easily discover the advertisement of the target device in order to successfully connect to the target device. In addition, since the jamming is performed on advertisement channels only, data connection channels are not disturbed.

A first communication device for use in a wireless communication system to communicate with a second communication device comprises circuitry configured to transmit probe signals into multiple directions, receive echo signals in response to the transmitted probe signals, and determine the position of a potentially eavesdropping communication device from the received echo signals.

Methods, systems, and apparatus, including computer programs encoded on a storage device, for triggering an alarm during a sensor jamming attack. In one aspect, a monitoring system sensor unit is disclosed that includes a sensor, a communication unit configured to communicate with a monitoring system using a range of frequencies, and a jamming detection unit. The jamming detection unit may include a processor and a computer storage media storing instructions that, when executed by the processor, cause the processor to perform operations. The operations include detecting a sensor jamming event, selecting a different form of communication other than the range of radio frequencies for the communication unit to communicate with the monitoring system, and providing, to the communication unit, an instruction to communicate with the monitoring system using the form of communication, wherein the communication unit may communicate, to the monitoring system using the form of communication, the sensor data.

A waveform analysis and vulnerability assessment (WAVE) tool is disclosed that can analyze the characteristics and vulnerabilities of waveforms. The WAVE tool may identify issues in waveforms prior to their implementation in a transmit device or building the back-end processing to receive the waveform at a ground station. The WAVE tool may quantify waveform vulnerabilities, address which vulnerabilities a particular waveform has, and enable the user to modify the waveform design to optimize its performance against threats prior to implementation. Additionally, the WAVE tool may save time and money since new waveforms can be vetted against the tool before implementation. Data from waveforms can be analyzed against a plurality of metrics and scores can be generated providing a quantitative assessment of waveform performance.

A voice morphing apparatus having adjustable parameters is described. The disclosed system and method include a voice morphing apparatus that morphs input audio to mask a speaker's identity. Parameter adjustment uses evaluation of an objective function that is based on the input audio and output of the voice morphing apparatus. The voice morphing apparatus includes objectives that are based adversarially on speaker identification and positively on audio fidelity. Thus, the voice morphing apparatus is adjusted to reduce identifiability of speakers while maintaining fidelity of the morphed audio. The voice morphing apparatus may be used as part of an automatic speech recognition system.

Methods, systems, and apparatus, including computer programs encoded on a storage device, for triggering an alarm during a sensor jamming attack. In one aspect, a monitoring system sensor unit is disclosed that includes a sensor, a communication unit configured to communicate with a monitoring system using a range of frequencies, and a jamming detection unit. The jamming detection unit may include a processor and a computer storage media storing instructions that, when executed by the processor, cause the processor to perform operations. The operations include detecting a sensor jamming event, selecting a different form of communication other than the range of radio frequencies for the communication unit to communicate with the monitoring system, and providing, to the communication unit, an instruction to communicate with the monitoring system using the form of communication, wherein the communication unit may communicate, to the monitoring system using the form of communication, the sensor data.

This application relates to a jamming signal generating apparatus. In one aspect, the jamming signal generating apparatus includes a signal analyzer configured to perform measurement and analysis of a radar reception signal, and a radio frequency (RF) source signal output device configured to receive the radar reception signal and to output a video signal by reflecting the measurement and the analysis. The jamming signal generating apparatus may also include a frequency up converter configured to output a jamming signal and a jamming transmission signal measurement device configured to receive the video signal and the jamming signal and to obtain a jamming to signal ratio (JSR).

The disclosure provides a computer-implemented system for establishing a wireless mesh network resistant to degradation induced by deliberate jamming or other electromagnetic interference emanating from point sources within an operating area. The computer-implemented system provides WMN AP locations that minimize disruptions to client coverage caused by jammers, subject to constraints on network service. The computer-implemented system considers jammers placed by an intelligent adversary and identifies the AP locations λ through quantification of an objective function of the general form Z(λ,χ)=Z.sub.coverage(λ,χ)−w Z.sub.flow(λ,χ), where Z.sub.coverage(λ,χ) reflects resulting coverage shortfall, Z.sub.flow(λ,χ) reflects traffic flow within the WMN, and w is a scalar reflecting the relative weight of the two terms. The final set of AP locations λ identifies the locations of APs to create a WMN that is the most robust to the worst possible jamming attack. Such an attack could represent the actions of a rational human opponent, or the worst-case positioning of unintentional interference sources such as civilian radios, other RF devices, or high-voltage electrical devices.

A device is provided for jamming electromagnetic radiation liable to be emitted by at least one portion of an interconnect region located above at least one zone of an integrated electronic circuit produced in and on a semiconductor substrate. The device includes an antenna located above the at least one zone of the circuit and generating circuit coupled to the antenna and configured to generate an electrical signal having at least one pseudo-random property to pass through the antenna.

This application relates to a jamming signal generating apparatus. In one aspect, the jamming signal generating apparatus includes a signal analyzer configured to perform measurement and analysis of a radar reception signal, and a radio frequency (RF) source signal output device configured to receive the radar reception signal and to output a video signal by reflecting the measurement and the analysis. The jamming signal generating apparatus may also include a frequency up converter configured to output a jamming signal and a jamming transmission signal measurement device configured to receive the video signal and the jamming signal and to obtain a jamming to signal ratio (JSR).