CPC G01S 7/356 (2021.05) [G01S 7/411 (2013.01); G01S 13/347 (2013.01); G01S 13/505 (2013.01)] | 12 Claims |
1. An apparatus comprising:
receiver circuitry to receive and sample radar signal reflections as reflected from a target; and
processing circuitry to:
transform representations of the reflections into a fast-time domain, the representations comprising a plurality of length-N sample vectors;
convert a sample vector of the plurality of length-N sample vectors into a spectral domain by using a fast Fourier transform (FFT);
oversample the transformed representations of the reflections by computing branches of length-N complex-weighted inverse FFTs (IFFTs);
select a subset of the oversampled representations that are nearest to a predefined index, relative to other representations of the oversampled representations;
arrange the subset of the oversampled representations into an output sample vector;
and
ascertain positional characteristics of the target by constructing a range response characterizing the target based on at least the output sample vector.
|