Abstract: A digitally modulated radar, DMR, transmitter module is disclosed comprising: a sequence generator, configured to generate a repeating digital sequence signal based on a relatively low-frequency clock signal; a mixer configured to combine the digital sequence signal with at least one phase-delayed copy of the digital sequence signal, to provide a combined signal; and a modulator configured to modulate a relatively high-frequency carrier signal, in dependence on the combined signal, to provide a modulated signal. Corresponding systems and methods are also disclosed.

Abstract: A receiver unit is disclosed for use in a multiple-input-multiple output, MIMO, radar system having a plurality of transmitters each for transmitting one of a group of orthogonal digital-transmitter-signals on a carrier wave, the receiver unit configured and adapted to receive a raw-analog-signal on a carrier wave reflected from one or more target objects.

Abstract: A transceiver for a detection and ranging apparatus comprising: a transmitter chain comprising a first sequence generator configured to generate a first signal based on a digital sequence; an interference cancellation block comprising a second sequence generator configured to generate a second signal based on the same digital sequence used to generate the first signal, the second signal having a predetermined time delay relative to the first signal; and the receiver chain configured to receive a received signal for detection and ranging, the received signal having components comprising at least none, one, or more reflections of the transmission signal and a component comprising an interference signal, the receiver chain comprising a first analog signal mixer configured to provide an output signal by mixing the received signal and the second signal thereby cancelling the interference signal in the received signal.

Abstract: A digitally modulated radar, DMR, transmitter module is disclosed comprising: a sequence generator, configured to generate a repeating digital sequence signal based on a relatively low-frequency clock signal; a mixer configured to combine the digital sequence signal with at least one phase-delayed copy of the digital sequence signal, to provide a combined signal; and a modulator configured to modulate a relatively high-frequency carrier signal, in dependence on the combined signal, to provide a modulated signal. Corresponding systems and methods are also disclosed.

Abstract: A method of detecting an object is disclosed, comprising generating a transmission signal by generating a carrier signal and digitally modulating the carrier signal with a transmission modulation signal, and transmitting the transmission signal. A reflected signal is received, the reflected signal having been reflected from the object, and demodulated to extract a received modulation signal. The received modulation signal is correlated with the transmission modulation signal and a range of the object is determined from the correlation of the received modulation signal and the transmission modulation signal.

Abstract: A wireless communication unit (100) is described that comprises: at least one receiver configured to receive a radio frequency signal on at least one receiver channel (262, 264, 266, 268) and comprising a plurality of receiver circuits; at least one interference detection circuit (244, 248, 252) coupled to an output of at least one of the plurality of receiver circuits and configured to detect a saturation event of a signal output from the at least one of the plurality of receiver circuits; and a controller (114) configured to identify interference in a received signal.

Abstract: A receiver unit is disclosed for use in a multiple-input-multiple output, MIMO, radar system having a plurality of transmitters each for transmitting one of a group of orthogonal digital-transmitter-signals on a carrier wave, the receiver unit configured and adapted to receive a raw-analog-signal on a carrier wave reflected from one or more target objects.

Abstract: A transceiver for a detection and ranging apparatus comprising: a transmitter chain comprising a first sequence generator configured to generate a first signal based on a digital sequence; an interference cancellation block comprising a second sequence generator configured to generate a second signal based on the same digital sequence used to generate the first signal, the second signal having a predetermined time delay relative to the first signal; and the receiver chain configured to receive a received signal for detection and ranging, the received signal having components comprising at least none, one, or more reflections of the transmission signal and a component comprising an interference signal, the receiver chain comprising a first analog signal mixer configured to provide an output signal by mixing the received signal and the second signal thereby cancelling the interference signal in the received signal.

Abstract: A method of detecting an object is disclosed, comprising generating a transmission signal by generating a carrier signal and digitally modulating the carrier signal with a transmission modulation signal, and transmitting the transmission signal. A reflected signal is received, the reflected signal having been reflected from the object, and demodulated to extract a received modulation signal. The received modulation signal is correlated with the transmission modulation signal and a range of the object is determined from the correlation of the received modulation signal and the transmission modulation signal.

Abstract: A wireless communication unit (100) is described that comprises: at least one receiver configured to receive a radio frequency signal on at least one receiver channel (262, 264, 266, 268) and comprising a plurality of receiver circuits; at least one interference detection circuit (244, 248, 252) coupled to an output of at least one of the plurality of receiver circuits and configured to detect a saturation event of a signal output from the at least one of the plurality of receiver circuits; and a controller (114) configured to identify interference in a received signal.