System for detecting optical linear frequency modulation distance by using square wave digital linear frequency modulation signal

The invention relates to a system for detecting an optical chirp distance by using a square wave digital chirp signal. A light detection and ranging lidar system includes a laser source configured to generate a carrier wave; an equalizer configured to modulate an amplitude of the chirp signal; a modulator configured to modulate a frequency of the carrier wave using the chirp signal; one or more scanning optics configured to generate a transmission signal using the modulated carrier wave, and to transmit the transmission signal; and a processor configured to determine a Doppler shift of the object based on the return signal and the reference signal; wherein the return signal is received from the object in response to the transmit signal. 本发明涉及使用方波数字线性调频信号检测光学线性调频距离的系统。一种光检测和测距激光雷达系统包括：激光源，所述激光源被配置为生成载波；均衡器，所述均衡器被配置为调制线性调频信号的振幅；调制器，所述调制器被配置为使用所述线性调频信号调制所述载波的频率；一个或多个扫描光学器件，所述一个或多个扫描光学器件被配置为使用经调制的载波生成发射信号，并且发射所述发射信号；以及处理器，所述处理器被配置为基于返回信号和参考信号确定对象的多普勒频移；其中，响应于所述发射信号从所述对象接收所述返回信号。