| CPC G01S 13/4409 (2013.01) [G01S 7/352 (2013.01); G01S 13/003 (2013.01); G01S 13/931 (2013.01)] | 17 Claims |
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1. A system comprising:
a memory system to store processor-executable instructions; a
plurality of radio frequency (RF) sensor suites; and
a plurality of hardware processors coupled with the memory system and with the plurality of RF sensor suites each having at least a corresponding RF receiver, the plurality of hardware processors are configured to:
receive a first radio signal with a first RF receiver in the plurality of RF sensor suites;
convert the received first radio signal to a second frequency range;
perform at least a chirplet transform on the converted signal in the second frequency range;
retrieve stored relative location information for a second RF receiver in the plurality of RF sensor suites;
extract radar waveform information corresponding to the second RF receiver with a controller corresponding to the first RF receiver by utilizing the retrieved information and results from the chirplet transform;
generate a point cloud based on the converted signal in the second frequency range and the extracted radar waveform information;
store the point cloud in the memory system;
coherently add collocated responses;
interpolate extracted waveform information for multiple RF receivers that are non-equally distributed; and
perform a maximum likelihood angle estimation to determine an angular location corresponding to the second RF receiver.
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