Local Iterative Searching Dechirp Algorithm for Linear Frequency-Modulated Signal Parameter Estimation in Low SNR Condition
This paper analyses the existing methods for linear frequency modulated (LFM) signal parameters estimation methods. A new fast algorithm named as local iterative searching dechirp algorithm which combined segmented correlation dechirp method, interpolation and extrapolation method and golden section method together to get the accurate estimation of LFM signal parameters. After that, the validity of this new algorithm has been simulated when LFM signal is not exist at the beginning or the ending of the received signal.
KeywordsExtrapolation Method Frequency Rate Unimodal Function Local Iterative Searching Linear Frequency Modulate Signal
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