Skip to main content
Log in

Algorithm for the detection and parameter estimation of multicomponent LFM signals

  • Letters
  • Published:
Journal of Electronics (China)

Abstract

A novel algorithm based on Radon-Ambiguity Transform (RAT) and Adaptive Signal Decomposition (ASD) is presented for the detection and parameter estimation of multicomponent Linear Frequency Modulated (LFM) signals. The key problem lies in the chirplet estimation. Genetic algorithm is employed to search for the optimization parameter of chirplet. High estimation accuracy can be obtained even at low Signal-to-Noise Ratio(SNR). Finally simulation results are provided to demonstrate the performance of the proposed algorithm.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

References

  1. G. F. Boudreaux-Bartels, Time varying signal processing using the Wigner distribution, in Advances in Geophysical Data Processing, M. Simaan, Ed. Greenwich, CT, JAI Press Inc., 1985, Vol.2, 33–79.

  2. J. C. Wood, D. T. Barry, Radon transformation of time frequency distributions for analysis of multicomponent signals, IEEE Trans. on Signal Processing, 42(1994)11, 3166–3177.

    Article  Google Scholar 

  3. M. S. Wang, A. K. Chan, C. K. Chui, Linear frequency modulated signal detecting using Radon ambiguity transform, IEEE Trans. on Signal Processing, 46(1998)3, 571–586.

    Article  Google Scholar 

  4. Li Yingxiang, Xiao Xianci, Recusive filter Radon ambiguity transform algorithm for detecting multi-LFM signals, Journal of Electronics(China), 20(2003)3, 161–166.

    MATH  Google Scholar 

  5. Liu Aifang, Zhu Xiaohua, Liu Zhong, Multicomponent LFM signal detection and parameter estimation based on Radon Gabor transform, Journal of Electronics & Information Technology, 26(2004)2, 220–224.

    Google Scholar 

  6. Zhou Hong, Bao Zheng, Time frequency analysis of multicomponent linear frequency modulated signals, Ph.D thesis, Xidian University, 2000.

  7. Aykut, Bultan, A four-parameter atomic decomposition of chirplets, IEEE Trans. on Signal Processing, 47(1994)3, 731–745.

    Google Scholar 

  8. G. Lopez-Resueno, J. Grajal, Unknown signal diction via atomic decomposition, Proc. 11th IEEE Workshop on Statistical Signal Processing, SSP 2001, Singapore, August 2001, 174–177.

Download references

Author information

Authors and Affiliations

Authors

Additional information

Supported by Key Lab. for Radar Signal Processing Foundation(No.51431050103ZS0106)

Communication author: Yuan Weiming, born in 1976, male, Doctoral candidate. Key Lab. for Radar Signal Processing, Xidian University, Xi’an 710071, China.

About this article

Cite this article

Yuan, W., Wang, M. & Wu, S. Algorithm for the detection and parameter estimation of multicomponent LFM signals. J. of Electron.(China) 22, 185–189 (2005). https://doi.org/10.1007/BF02688146

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02688146

Key words

Navigation