Method and system for using square wave digital chirp signal for optical chirp presser detection

摘要

Problem to be solved: to provide an apparatus for use of a square wave digital chirp signal for optical chirped presser detection.The laser source radiates the optical signal, and the RF waveform generator generates an input digital chirp signal based on the square wave digital chirp signal.The frequency of the optical signal is modulated based on the input digital chirp signal.The splitter divides the optical signal into a transmitted optical signal and a reference optical signal.The detector couples the reference optical signal and the return light signal from the object.The detector generates an electrical output signal based on the combined reference optical signal and the return light signal.The processor determines the range to the object based on the Fourier transform characteristics of the electrical output signal.A method for using a square wave digital chirp signal for optical chirp presser detection is also provided.Diagram