FMCW RADAR APPARATUS, AND SIGNAL PROCESSING METHOD FOR FMCW RADAR

摘要

PROBLEM TO BE SOLVED: To provide an FMCW radar apparatus capable of correctly measuring a distance up to a target and a relative speed to the target even when a beat signal to be observed comprises only in-phase components, and to provide a signal processing method for the FMCW radar.SOLUTION: A FMCW radar apparatus includes: a frequency bin extraction part for extracting only a complex spectrum of a frequency bin in a predetermined range from a frequency complex spectrum of a beat signal in an up-chirp period after FFT and a frequency complex spectrum of a beat signal in a down-chirp period; and a target measurement part for measuring a distance up to a target and a relative speed to the target from the frequency bin of the target in the up-chirp period and a frequency bin of the target in the down-chirp period.