A passive entry/passive start (PEPS) system includes a communication gateway configured to transmit a ping signal based on at least one of a predetermined period and a predetermined transmission power level. The PEPS system includes at least one sensor configured to receive the ping signal and measure a physical characteristic of the ping signal. The PEPS system includes a central module configured to receive the measured physical characteristic of the ping signal, determine a lower threshold and an upper threshold associated with the at least one sensor, and compare the measured physical characteristic of the ping signal to the lower threshold and the upper threshold. In response to determining that the measured physical characteristic is less than the lower threshold and greater than the upper threshold, the central module is further configured to notify a portable device that the at least one sensor has been tampered with.

An aerial system discrimination system includes an aerial system disruption system, an aerial system identification system, and a permissions module. The discrimination system can additionally include or use an identifier transmission system configured to mount to the aerial system. The discrimination system functions to determine whether an aerial system is authorized or unauthorized to be in the airspace. The discrimination system can additionally function to prevent, disrupt, remove, or otherwise interact with an unauthorized aerial system within the airspace.

A device (112, 130) is configured to communicate data (108) on a radio channel (101, 105, 106) employing first resource elements. The device (112, 130) is further configured to participate in a radar probing (109) employing second resource elements which are orthogonal to the first resource elements.

A method for monitoring a vehicle, the method may include detecting, by a vehicle monitor that is associated with a vehicle, a failure to communicate with a first communication network; storing failure information about a time of the failure and a location of the vehicle in proximity to a detection of the failure; attempting, after the detecting of the failure and by the vehicle monitor, to establish communication with at least one communication network out of the first communication network and a second communication network; wherein the second communication network is a long range wide area network (LoRaWAN) and the first communication network is not a LoRaWAN; and after succeeding to establish communication with a given communication network out of the first and second communication networks, transmitting the failure information over the given communication network.

A flight interference apparatus enabling it to block intrusion by a miniature unmanned aerial vehicle which is remotely piloted by radio communication into an area to be protected, suppress influence on communication within and outside the area, and reduce the number of required antenna devices. The flight interference apparatus includes one or a plurality of antenna devices which radiate a jamming signal from a directional antenna, and the directional antenna includes a radiating element which radiates a jamming signal of a predetermined frequency band and a reflector which gives directionality to the jamming signal in its radiation direction.

Some embodiments relate to a method for repelling a detectable drone, whose flight control and/or whose drone flight path can be influenced by repulsion measures, wherein a repulsion space is defined as a part of the airspace, and wherein the flight control and/or the drone flight path of a drone located in the repulsion space is influenced.

A locking device for a motor vehicle. A transmitting device, which is designed to send out a request signal into a surroundings of the motor vehicle in dependence on a predetermined triggering event, as well as a receiving device, which is designed to receive, within a predetermined time interval from the sending of the request signal in a predetermined frequency region, a response signal of a radio key from the surroundings, and a control device, which is designed, in event of a response signal received within the time interval, to unlock at least one lock of the locking device. An evaluation module is designed so that the transmitting device sends out an interference radio signal after the sending of the request signal within the time interval at least at one radio frequency lying outside the frequency region.

According to a first aspect of the present invention, there is provided a reconnaissance and communication assembly, adapted to be launched from a gun barrel into the air over a body of water. The assembly comprises a carrier (with a cavity) and a payload (within the cavity). The payload is arranged to be controllably expelled from the carrier and once expelled from the carrier, the payload is adapted to enter the water; and the payload transmits a signal after entering the water.

A system includes at least one reception unit installed in an aircraft and configured for tracking satellites of the satellite navigation system of the GNSS type. The system includes a generation unit for generating an expected number corresponding to the number of satellites that the reception unit is expected to track, a detection unit including a comparison part for comparing the expected number with a tracked number corresponding to the number of satellites that the reception unit is actually tracking and a decision part for detecting a jamming, as a function of the result of the comparison made by the comparison part and transmitting detection data in the event of detection, and a transmission unit configured to transmit jamming detection data to at least one user device, the system making it possible to detect a jamming of a GNSS system in an automatic and reliable manner.

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.