Patent ID: 9448301
Filing Date: 2016-09-20
CPC Classification: G01S

Claim Text:
1. A radar apparatus for measuring at least one characteristic of at least one object, comprising a sweep generator for generating a sweep signal; an oscillator coupled to the sweep generator and modulated by the sweep signal to generate a varying frequency signal; a transmitter operatively coupled to the oscillator to amplify the varying frequency signal and generate a radar signal; a receiver operatively coupled to the oscillator to receive a reflected radar signal reflected off of the at least one object and receive the reflected radar signal to produce a received signal using the varying frequency signal; a compensation signal memory for holding a previously stored compensation signal; a compensation circuit operatively coupled to the receiver and the compensation signal memory to compensate the received signal based on the previously stored compensation signal to produce a compensated received signal; a frequency transformation circuit operatively coupled to the compensation circuit to transform the compensated received signal into a frequency domain to produce a frequency spectrum signal of the compensated received signal; and a peak detector operatively coupled to the frequency transformation circuit to measure the characteristic of the object which the reflected radar signal was reflected based on a peak of the frequency spectrum signal.