| CPC G01S 7/354 (2013.01) [G01S 7/356 (2021.05); G01S 13/003 (2013.01)] | 10 Claims |
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1. A method comprising:
transmitting, by a first transceiver of a first radar station, a first radar signal;
transmitting, by a second transceiver of a second radar station, a second radar signal;
receiving, by the first transceiver, a reflection of the second radar signal;
receiving, by the second transceiver, a reflection of the first radar signal;
mixing, by a first mixer of the first radar station, the reflection of the second radar signal with a first local oscillator signal produced by a first local oscillator of the first radar station to produce a first resulting signal;
mixing, by a second mixer of the second radar station, the reflection of the first radar signal with a second local oscillator signal produced by a second local oscillator of the second radar station to produce a second resulting signal;
generating, by a first circuit of the first radar station, a first frequency-based representation of the first resulting signal;
generating, by a second circuit of the second radar station, a second frequency-based representation of the second resulting signal;
generating a synthesized beat signal by
superpositioning, by addition circuitry, the first and second frequency-based representations to produce a first parameter,
determining a complex conjugate of the first parameter,
combining, by multiplication circuitry, the first and second frequency-based representations to produce a second parameter, and
generating the synthesized beat signal by multiplying the second parameter with the complex conjugate of the first parameter,
wherein in the synthesized beat signal, phase noise is corrected in the first and second frequency-based representations of the first and second resulting signals; and
outputting the synthesized beat signal.
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