PURPOSE: A method for processing a FMCW(Frequency Modulated Continuous Wave) radar signal is provided to shorten sampling time by going through phase change, which is necessary in a DSP(Digital Signal Processor)
Also, a modulation periodicity value can be obtained from a sensed time-varying waveform and used in obtaining information about an object; for example, a periodic modulation frequency can be used with a given time's chirp frequency to obtain phase information about an object's position. Or, ...
The rear local oscillator 60 is easily implemented with a phase-locked loop, the construction of which is well known in the art. In addition, constructions of the downconverter 68, the front receiver 70, the rear receiver 62, and the FFT circuit 72 are well known in the art. Those ...