Correction of Frequency and Phase of Two Overlapped Spectrum Signals Based on FFT
Yi Hong · Radar Science and Technology · 2005
Many correction methods have been proposed for signal's frequency and phase corrections when there is only a frequency signal in one frequency resolution cell,for example,three-point convolution method,amplitude ratio method and phase difference method.These methods can not be used when there are two frequency components in one frequency resolution cell.This paper presents a direct formula with FFT based on phase difference and spectrum amplitude,and gives Monte Carlo simulation results.The results show that the method is effective and can be extended to multi-frequency components case.