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A fast Doppler rate estimation method based on fourth-order moment spectrum is presented. Without simultaneously estimating time delay, Doppler shift and Doppler rate, which is often time consuming, this method directly estimates the Doppler rate through maximisation the spectrum of the ratio of fourth-order moments between the echo and source signals. Detailed computational implementation is given...
A novel algorithm for mitigating multipath effect of low elevation for passive monopulse radar based on the fractional Fourier transform (FRFT) is proposed with constructing the multipath model in this paper. Reflection LFM signal filtered and mitigated in FRFT domain. The statistical analysis is also performed which perfects the method theoretically, simulation results are provided to show the validity...
With the deterioration of electronic environment, using signals DOA (direction of arrival) parameters has great significance to preselect multiple radar pulses. Cluster analysis as an important means of data classification, is gradually applied to radar signal sorting. In this paper, a novel method of signal sorting flowsheet is proposed based on Fuzzy Clustering to sort emitters DOA as data objects,...
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