A System-of-Systems Perspective on Frequency Estimation: Time-Frequency Distribution of Multiple LFM Signals-Reference-Cited by-同舟云学术

A System-of-Systems Perspective on Frequency Estimation: Time-Frequency Distribution of Multiple LFM Signals

Published:2021-02-03 Issue: Volume: Page:
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Container-title:Systems of Systems - Engineering, Modeling, Simulation and Analysis [Working Title]
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Author:

Liu Ruolun,Zhang Xueqin,Huang Rui

Abstract

This chapter provides a System-of-Systems (SoS) perspective on a study of frequency estimation of signals with a focus on Linear Frequency Modulation (LFM) signals. This chapter describes an SoS approach for frequency estimation using Chirplet Transform (CT), Hough Transform (HT), and the Short Time Fourier Transform (STFT) with filtering viewpoint. The filtering viewpoint employs the filter impulse response length to obtain the best time-frequency concentration for accurate estimation of a signal frequency. The optimum impulse response length can be found by varying the length of the filter impulse response and observe the changing in the time-frequency distribution (TFD). The chapter shows that when the length of the impulse response becomes longer, the time-frequency concentration in TFD increases first and then decreases.

Publisher

IntechOpen

Link

http://www.intechopen.com/download/pdf/75045

Reference14 articles.

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