Circuit device for frequency determination of output signal of oscillator for frequency modulated radar detector, performs frequency analysis of final signal, and determines output signal using frequency of final signal

摘要

The circuit device has a frequency divider (2) to divide the output signal of oscillator (1) and output an intermediate signal. An auxiliary oscillator outputs an auxiliary signal, and a subtractor subtracts the auxiliary signal from the intermediate signal and outputs a final signal. A frequency analysis circuit (4) performs frequency analysis of the final signal, and a determining circuit determines the output signal using the frequency of the final signal. An independent claim is included for method for determination of frequency of output signal of oscillator.