CPC G01S 13/34 (2013.01) [G01S 7/354 (2013.01); G01S 7/40 (2013.01); G01S 13/36 (2013.01); G01S 7/356 (2021.05)] | 20 Claims |
1. A frequency modulated continuous-wave (FMCW) radar system comprising:
a quadrature transceiver comprising:
a transmitter having an in-phase input and a quadrature input; and
a receiver having an in-phase output and a quadrature output;
a dual channel FMCW signal generator having two direct digital synthesizers (DDSs), comprising:
a first output coupled to the in-phase input of the transmitter; and
a second output coupled to the quadrature input of the transmitter;
a first splitter coupled between the first output of the dual channel FMCW signal generator and the in-phase input of the transmitter;
a second splitter coupled between the second output of the dual channel FMCW signal generator and the quadrature input of the transmitter;
a first mixer comprising:
a first input coupled to a second output of the first splitter;
a second input coupled to the in-phase output of the receiver; and
an output of the first mixer;
a second mixer comprising:
a first input coupled to a second output of the second splitter;
a second input coupled to the quadrature output of the receiver; and
an output of the second mixer;
a dual channel analog to digital converter (ADC) comprising:
a first input coupled to the output of the first mixer; and
a second input coupled to the output of the second mixer; and
a controller coupled between the dual channel FMCW signal generator and the dual channel ADC.
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