Parameter Estimation of LFMCW Signals Based on Improved SM Method

Authors

Jiang Li, School of Information and Control Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
Junni Zhou, School of Information and Control Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
Runling Yang, School of Information and Control Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
Liu Li, School of Information and Control Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;

Abstract

Abstract: The parameter estimation of linear frequency modulation continuous wave (LFMCW) signal is a research hotspot in electronic reconnaissance systems. In this paper, the time frequency distribution feature of LFMCW signals is studied first. Based on the improved S-method (SM), an algorithm for parameter estimation of LFMCW signals is proposed. It uses short-time Fourier transform (STFT) to calculate the SM with adaptive window width, which can suppress the crossterm interferences and improve the time-frequency resolution. Theoretical analysis and simulation experiment results demonstrate the validity of the proposed algorithm under low SNR.

Recommended Citation

Li, Jiang; Zhou, Junni; Yang, Runling; and Li, Liu (2019) "Parameter Estimation of LFMCW Signals Based on Improved SM Method," Journal of System Simulation: Vol. 30: Iss. 9, Article 7.
DOI: 10.16182/j.issn1004731x.joss.201809007
Available at: https://dc-china-simulation.researchcommons.org/journal/vol30/iss9/7

First Page

3283

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201809007

Last Page

3287

CLC

TN971

Recommended Citation

Jiang Li, Zhou Junni, Yang Runling, Liu Li. Parameter Estimation of LFMCW Signals Based on Improved SM Method[J]. Journal of System Simulation, 2018, 30(9): 3283-3287.

DOI

10.16182/j.issn1004731x.joss.201809007