An apparatus for generating a jamming signal comprises a signal receiving unit configured to receive an external pulse signal, an amplitude signal generating unit configured to generate an amplified signal by amplifying the pulse signal, a noise signal generating unit configured to generate a noise signal having a bandwidth including a bandwidth of the pulse signal, a control unit configured to control the amplified signal generating unit and the noise signal generating unit such that a signal-to-noise ratio of the amplified signal and the noise signal to be received by an apparatus that has transmitted the pulse signal becomes constant based on characteristics of the pulse signal and a signal radiating unit configured to radiate the amplified signal and the noise signal.

A surrounding monitoring radar device includes a signal generation unit, a spectrum generation unit, a cycle setting unit, a learning unit, and an update unit. At an update timing, the update unit updates a determination reference to a learned value calculated by the learning unit. the learning unit is configured to: set the learning value to an initial value at a start timing of the learning period; compare the learned value with a value of a noise floor of the generated frequency spectrum during the learning period; and update the learned value to the value of the noise floor upon the value of the noise floor being smaller than the learned value.

A surrounding monitoring radar device includes a signal generation unit, a spectrum generation unit, a cycle setting unit, a learning unit, and an update unit. At an update timing, the update unit updates a determination reference to a learned value calculated by the learning unit. the learning unit is configured to: set the learning value to an initial value at a start timing of the learning period; compare the learned value with a value of a noise floor of the generated frequency spectrum during the learning period; and update the learned value to the value of the noise floor upon the value of the noise floor being smaller than the learned value.

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 computer generates a local signal using a random number sequence, and outputs the local signal (SG1). A signal generator generates and transmits a transmit signal (SG2) by frequency modulating a carrier wave with the local signal (SG1). A mixer outputs a mixer output signal (SG4) by combining the transmit signal (SG2) with a receive signal (SG3). A control filter allows the mixer output signal (SG4) to pass therethrough according to a filter control signal (SG7). The computer generates the filter control signal (SG7) using the random number sequence indicating the random number sequence used for modulation of the local signal, and outputs the filter control signal to the control filter. The computer determines whether there is an attack, based on the random number sequence and a detection signal (SG8) outputted by the control filter according to the filter control signal (SG7).

A computer generates a local signal using a random number sequence, and outputs the local signal (SG1). A signal generator generates and transmits a transmit signal (SG2) by frequency modulating a carrier wave with the local signal (SG1). A mixer outputs a mixer output signal (SG4) by combining the transmit signal (SG2) with a receive signal (SG3). A control filter allows the mixer output signal (SG4) to pass therethrough according to a filter control signal (SG7). The computer generates the filter control signal (SG7) using the random number sequence indicating the random number sequence used for modulation of the local signal, and outputs the filter control signal to the control filter. The computer determines whether there is an attack, based on the random number sequence and a detection signal (SG8) outputted by the control filter according to the filter control signal (SG7).

A radar sensor having a signal generating device which generates an outgoing signal as a radar signal that is to be emitted. The radar sensor also has a signal receiving device for receiving and processing received signals as reflected radar signals. The received signals can be processed with a prediction method in order to determine a predicted signal, which can be compared to the received signal in order to eliminate disruptions deviating therefrom.

A radar pulse generator includes a multiplexer, a polyphase synthesizer, a first signal channel and a second signal channel. The multiplexer has a baseband radar pulse input, a multiplexer control input, a first channel output and a second channel output. The baseband radar pulse input signal is a single channel baseband radar pulse signal. The multiplexer control input signal selects one of the group consisting of the first channel output and the second channel output. The polyphase synthesizer synthesizes the first channel output signal, synthesizes the second channel output signal and outputs a desired radar pulse signal based on the synthesized first channel output signal and the synthesized second channel output signal. The first signal channel provides the first channel output signal from the first channel output to the polyphase synthesizer. The second signal channel provides the second channel output signal from the second channel output to the polyphase synthesizer.

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.