A handheld countermeasure device is disclosed herein. The device can include a hand-held form factor body. The device can include disruption components, a directional antenna, and a processor. The disruption components can be configured to generate a disruptive signal. The directional antenna can be configured to emit the disruptive signal. The processor can be configured to determine a position of the handheld countermeasure device based on a global navigation satellite system (GNSS) signal. The processor can be configured to load a device profile for the handheld countermeasure device based on the position of the handheld countermeasure device.

A radio frequency (RF) jamming device includes a differential segmented aperture (DSA), a jammer source outputting a jamming signal at one or more frequencies or frequency bands to be jammed, and RF electronics that amplify and feed the jamming signal to the DSA so as to emit a jamming beam. The DSA includes an array of electrically conductive tapered projections, and the RF electronics comprise power splitters configured to split the jamming signal to aperture pixels of the DSA. The aperture pixels comprise pairs of electrically conductive tapered projections of the array of electrically conductive tapered projections. The RF electronics further comprise pixel power amplifiers, each connected to amplify the jamming signal fed to a single corresponding aperture pixel of the DSA. The RF jamming device may include a rifle-shaped housing, with the DSA mounted at a distal end of the barrel of the rifle-shaped housing.

A system for near field communications is provided. The system can include a near field generator configured to generate a near field detectable signal comprising information. The system can include a near field detector configured to receive the near field detectable signal and output the information. The system can include an Electro-Magnetic (EM) shield surrounding the near field generator to block EM radio frequency (RF) signals in the vicinity of the near field generator from interfering with operations of the near field generator. The EM shield does not prevent communication of the near field detectable signal between the near field generator and the near field detector. The EM shield can be configured to reduce magnetic field loss from eddy currents in the EM shield as the near field detectable signal passes through the EM shield.

A handheld countermeasure device is disclosed herein. The device can include a hand-held form factor body. The device can include disruption components, a directional antenna, and a processor. The disruption components can be configured to generate a disruptive signal. The directional antenna can be configured to emit the disruptive signal. The processor can be configured to determine a position of the handheld countermeasure device based on a global navigation satellite system (GNSS) signal. The processor can be configured to load a device profile for the handheld countermeasure device based on the position of the handheld countermeasure device.

A portable countermeasure device is provided comprising one or more directional antennae, one or more disruption components and at least one activator. The portable countermeasure device further comprises a body having a dual-grip configuration, with the directional antennae are affixed to a removable plate on a front portion of the body. The one or more disruption components may be internally mounted within the device body. The dual-grip configuration allows an operator to use his body to steady and support the device while maintaining the antenna on target. The second grip is positioned adjacent the first grip, with the first grip angled toward the rear of the device and the second grip angled toward the front of the device. The portable countermeasure device is aimed at a specific drone, the activator is engaged, and disruptive signals are directed toward the drone, disrupting the control, navigation, and other signals to and from the drone.

An internet of things is disclosed, comprising plural SDR receivers and possibly a centralised system, where one or more of the receivers may be mobile. The internet of things thus allows for a very large proportion of RF signals present within a city, for example, to be monitored and analysed for the purpose of identifying, tracking and/or preventing criminal behaviour. The receivers may be equipped with secure SDRs for increased security and privacy and the system preferably includes artificial intelligence using machine learning technology, for increased adaptability among others. The system is flexible due to the programmability of the SDRs.

A system for defeating a threat unmanned aerial vehicle including a friendly unmanned aerial vehicle and a containment system. The containment system is deployable from the friendly unmanned aerial vehicle and includes a signal blocking enclosure and a capturing device. The signal blocking enclosure is formed of a conductive material for shielding radio frequency signals from propagating in or out of the signal blocking enclosure. The capturing device is configured for arresting the threat unmanned aerial vehicle and positioning an arrested threat unmanned aerial vehicle within the signal blocking enclosure.

Methods and systems fort operating one or more light sources to project adversarial patterns generated to disorient a machine learning based detection system, comprising generating one or more adversarial patterns configured to disorient the machine learning based detection system and operating one or more light sources configured to project one or more of the adversarial pattern(s) in association with the targeted object in order to disorient the machine learning based detection system.

Methods and systems fort operating one or more light sources to project adversarial patterns generated to disorient a machine learning based detection system, comprising generating one or more adversarial patterns configured to disorient the machine learning based detection system and operating one or more light sources configured to project one or more of the adversarial pattern(s) in association with the targeted object in order to disorient the machine learning based detection system.

A wave construction method is described that can be used to generate a new and different wave front, which is not parallel to the natural expanding wave front from the emitted signal generated from the source array. Restated, a wave construction method is described that can be used to generate a new and different wave front which is not perpendicular to the direction from the source array to the center of the wave front. This method can also be used to shape a wave in the far field or near field, by changing the locations of the computed points, and generating a linear or non-linear shaped wave (front). This disclosure allows for the controlling, rotating, or shaping radio frequency or acoustic waves in free space or in a fluid.