A method for a radar device is described below. According to an example implementation, the method comprises transmitting an RF transmission signal that comprises a plurality of frequency-modulated chirps, and receiving an RF radar signal and generating a dataset containing in each case a particular number of digital values based on the received RF radar signal. A dataset may in this case be associated with a chirp or a sequence of successive chirps. The method furthermore comprises filtering the dataset by way of a neural network to which the dataset is fed in order to reduce an interfering signal contained therein. A convolutional neural network is used as the neural network.

[OBJECT] To surely remove a multi-order echo or interference from another radar apparatus [ORGANIZATION] A radar apparatus transmitting pulse signals at predetermined repetition cycles and receiving and analyzing the pulse signals reflected by a target object to thereby detect the target object has: a setting means (control unit 11) setting so that at least a part of the repetition cycles of the pulse signals is different; a detection means (speed detection/object detection unit 16) detecting a distance to the target object specified by the pulse signal; and a removal means (clutter removal unit 17) removing the target object as clutter when the distance to the target object detected in the different repetition cycle or in a period subsequent to the different repetition cycle by the detection means and the distance to the target object detected in the period other than that by the detection means are different.

[OBJECT] To surely remove a multi-order echo or interference from another radar apparatus [ORGANIZATION] A radar apparatus transmitting pulse signals at predetermined repetition cycles and receiving and analyzing the pulse signals reflected by a target object to thereby detect the target object has: a setting means (control unit 11) setting so that at least a part of the repetition cycles of the pulse signals is different; a detection means (speed detection/object detection unit 16) detecting a distance to the target object specified by the pulse signal; and a removal means (clutter removal unit 17) removing the target object as clutter when the distance to the target object detected in the different repetition cycle or in a period subsequent to the different repetition cycle by the detection means and the distance to the target object detected in the period other than that by the detection means are different.

A defense system that receives information regarding an incoming object(s), then automatically coordinates spoofing or jamming of SATNAV signals potentially used by the incoming object(s) while also informing friendly systems of the spoofing or jamming of SATNAV signal.

A defense system that receives information regarding an incoming object(s), then automatically coordinates spoofing or jamming of SATNAV signals potentially used by the incoming object(s) while also informing friendly systems of the spoofing or jamming of SATNAV signal.

A method for confusing the electronic signature of a signal transmitted by a radar, includes the generation by the radar of at least one pulse, wherein the method comprises a step of modulation, in the pulse, of the polarization of the transmitted signal, according to two orthogonal or opposite polarizations, the modulation of the polarization being performed according to a predetermined modulation code.

Radio frequency motion sensors may be configured for operation in a common vicinity so as to reduce interference. In some versions, interference may be reduced by timing and/or frequency synchronization. In some versions, a master radio frequency motion sensor may transmit a first radio frequency (RF) signal. A slave radio frequency motion sensor may determine a second radio frequency signal which minimizes interference with the first RF frequency. In some versions, interference may be reduced with additional transmission adjustments such as pulse width reduction or frequency and/or timing dithering differences. In some versions, apparatus may be configured with multiple sensors in a configuration to emit the radio frequency signals in different directions to mitigate interference between emitted pulses from the radio frequency motion sensors.

Radio frequency motion sensors may be configured for operation in a common vicinity so as to reduce interference. In some versions, interference may be reduced by timing and/or frequency synchronization. In some versions, a master radio frequency motion sensor may transmit a first radio frequency (RF) signal. A slave radio frequency motion sensor may determine a second radio frequency signal which minimizes interference with the first RF frequency. In some versions, interference may be reduced with additional transmission adjustments such as pulse width reduction or frequency and/or timing dithering differences. In some versions, apparatus may be configured with multiple sensors in a configuration to emit the radio frequency signals in different directions to mitigate interference between emitted pulses from the radio frequency motion sensors.

A method for operating a radar sensor in which the radar sensor is provided with a signal generating device. The signal generating device generates an outgoing signal as a radar signal that is to be emitted. The radar sensor also includes a signal receiving device for receiving and processing received signals as reflected radar signals. The outgoing signal is generated within a predefinable frequency band. The received signals are monitored for the presence of an interference disruption. When an interference disruption has been detected, the frequency band for the generation of the outgoing signal is at least temporarily reduced in terms of the bandwidth.

A method and apparatus for authenticating a radar return signal include: generating an outgoing radar beam; generating a pair of entangled photons comprising a signal photon and an idler photon; combining the signal photon with the outgoing radar beam to generate a combined beam; sending the combined beam towards a target; receiving a return beam; detecting the signal photon from the return beam by a quantum illumination receiver; and making a joint detection with the idler photon.