Local Iterative Searching Dechirp Algorithm for Linear Frequency-Modulated Signal Parameter Estimation in Low SNR Condition

  • Yingxiang Li
  • Yingjie Peng
  • Zhaibing Zhang
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 128)


This paper analyses the existing methods for linear frequency modulated (LFM) signal parameters estimation methods. A new fast algorithm named as local iterative searching dechirp algorithm which combined segmented correlation dechirp method, interpolation and extrapolation method and golden section method together to get the accurate estimation of LFM signal parameters. After that, the validity of this new algorithm has been simulated when LFM signal is not exist at the beginning or the ending of the received signal.


Extrapolation Method Frequency Rate Unimodal Function Local Iterative Searching Linear Frequency Modulate Signal 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag GmbH Berlin Heidelberg 2012

Authors and Affiliations

  • Yingxiang Li
    • 1
  • Yingjie Peng
    • 1
  • Zhaibing Zhang
    • 2
  1. 1.College of Com. Eng.Chengdu Univ. of Info. Tech.Chengduchina
  2. 2.Automatization CollegeChongqing Univ.Chongqingchina

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