Nxp B.v.

Jeroen Overdevest

Arie Geert Cornelis Koppelaar

Francesco Laghezza

Alessio Filippi

Feike Guus Jansen

Marco Jan Gerrit Bekooij

A data processing device and method for detecting interference in FMCW radar signals, configured to use an adaptive thresholding technique to identify interference in a plurality of samples forming a beat signal, the adaptive thresholding including grouping the plurality of samples into a plurality of subsets, determining a maximum magnitude of each subset and extracting an nth lowest maximum magnitude of the plurality of subsets to determine an adaptive threshold, and applying the adaptive threshold to each sample to generate a mask.

Radar interference detection

A method of processing radar signalling, the method comprising: receiving a mask () that represents samples in the radar signalling that are detected as including interference. The mask () comprises a matrix of data having a first dimension and a second dimension, wherein the first dimension represents a fast-time axis and the second dimension represents a slow-time axis. The method further comprises performing frequency analysis on the mask () across each of the fast-time axis and the slow-time axis of the mask in order to provide a range-Doppler processed mask (); and deconvolving a range-Doppler map () of the received radar signalling using the range-Doppler processed mask () in order to provide a deconvolved-range-Doppler map ().

Method of processing radar signalling

A radar processor for processing a frame of radar data received from one or more targets, the frame of radar data having a carrier frequency and comprising a sequence of codewords with a codeword repetition interval, wherein the carrier frequency and the codeword repetition interval define an unambiguous velocity range, the radar processor configured to: receive the frame of radar data; transform the frame to obtain a velocity data array; apply a correction algorithm to the velocity data array to correct a Doppler shift of the frame to obtain a corrected array, wherein the correction algorithm comprises a set of Doppler correction frequencies corresponding to a set of velocity gates and at least one of the set of Doppler correction frequencies corresponds to a velocity gate outside the unambiguous velocity range; and perform range processing on the corrected array to obtain a range-Doppler map.

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Eindhoven, Netherlands

Jeroen Overdevest