A New Method for Detection and Joint Parameters Estimation of LFM Signals
You Xiao-long · Computer Knowledge and Technology · 2013
In the paper,a new Cross-correlation algorithm,providing detection and Joint parameters of LFM signals,is proposed based on a Hybrid Correlation Algorithm on Fractional Frequency Domain.By this algorithm,not only the echo LFM signals can be detected,but also the Doppler shifts and time delay can be estimated accurately with the Matched Fourier Transform,even for the case of the low SNR.Meanwhile,it is not necessary to search the rotated angle in the one-dimensional or two-di mensional spaces,so that the algorithm is also simple and high efficiency.Simulation results prove the correctness of this algo rithm.