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ImPCFCRD for noisy multicomponent LFM signals analysis

This paper presents the improved parameterized centroid frequency-chirp rate distribution (ImPCFCRD) for noisy multicomponent linear frequency modulated (LFM) signals analysis. Theoretical analyses and illustrative examples are performed for the ImPCFCRD. Mathematical conclusions and simulation results demonstrate that the ImPCFCRD makes the most of the constant delay introduction and achieves the theoretically optimal in the PSL. Finally, an experiment is given to illustrate that, because of the high PSL, the ImPCFCRD is more suitable for noisy multicomponent LFM signals analysis.