Radar system and method for determining range, relative velocity, and orientation of an object using continuous wave and chirp signals

摘要

Determining the distance and relative velocity includes transmitting an electromagnetic signal defined by the plurality of sections by the transmitter, the first section includes a continuous wave (CW) signal, and the second section includes: The chirp electromagnetic signal includes a plurality of subsections. The detector is an electromagnetic signal that is transmitted and reflected from the object, and detects the reflected signal, including the reflected CW signal and the reflected chirp signal. The detector detects the reflected signal by (i) generating multiple samples of the reflected CW signal and (ii) generating multiple samples of the reflected chirp signal. The processor determines a first set of phase differences between the multiple samples of the reflected CW signal and a second set of phase differences between the multiple samples of the reflected chirp signal, and The set and second set of phase differences are processed to determine distance, relative velocity, and orientation.