Abstract: A method for operating a radar transceiver to reduce a false alarm rate, the method including transmitting by at least one transmitter antenna, one or more frames at a duty cycle, each frame including N segments, each segment including M signal components, wherein the N segments are consecutively transmitted within the frame, receiving, by K receiver antennas, a response signal from a region of interest, ROI, detecting, for each segment, one or more target object reflections in the response signal, assigning, for each segment, a segment weight value to each of the one or more detected target object reflections, wherein a segment weight value corresponds to a likelihood of the associated target object reflection being associated with a false alarm, and filtering the target object reflections over the N segments based on the segment weight values.

Abstract: A radar system for monitoring a region of interest including a receiving antenna arrangement for receiving signals from a region of interest and a receiver signal processing arrangement for processing received signals. The radar system further includes at an auxiliary channel antenna arrangement for receiving signals from at least the region of interest and with a sensing characteristic for received signals which is mutually different to that of the receiving antenna arrangement. The receiver signal processing arrangement is operable to process the received signals from the receiving antenna arrangement and the auxiliary channel antenna arrangement to discriminate a jamming and/or interfering source in or near the region of interest.

Abstract: A system for resolving range ambiguity includes a wave generator a modulator for applying a digital signature to a continuous wave to generate a digitally-signed continuous wave, a transmitter for emitting the digitally-signed continuous wave from the ranging system as interrogating radiation towards an object, a receiver for receiving a portion of the interrogating radiation after reflection from the object, a correlator for correlating the portion of the interrogating radiation against the emitted digitally signed continuous wave according to the digital signature, a processor for determining from correlation in the correlator an elapsed time period between emitting the interrogating radiation and receiving the portion of the interrogating radiation after reflection from the object, wherein the processor calculates a range of the object from the transmitter by employing space-time adaptive processing and to determine a velocity of the object from correlation in the correlator using Doppler detection.

Abstract: A method of calibrating a multiple-input and multiple-output radar system is provided. The radar system includes a transmitting array and a physical receiving array. The transmitting array includes a first transmitter and a second transmitter spaced a distance away from the first transmitter. In the method, a waveform signal is transmitted firstly from the first transmitter and then from the second transmitter, such that receiving sub-apertures of the physical receiving array overlap with receiving sub-apertures of a virtual receiving array. The waveform signal is received at the physical and virtual receiving arrays. Subsequently, deviations in response between the physical receiving array and the virtual receiving array are computed. Effective positions of the first transmitter and the second transmitter are assessed, based upon the computed deviations. Setup calibrations needed for the multiple-input and multiple-output radar system are then determined, in order to reduce the computed deviations.