A novel method for extraction of in-pulse feature of multi-component LFM signal

Aiming on the problem of low precision and cross term in the conventional method of multi-component LFM signal detection and parameter estimation. A time-frequency associated analyzed method based on wavelet transform and time-frequency reassignment and Hough transform is propased. Overcome the inte...

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Bibliographic Details
Main Authors: Changxiao Chen, Minghao He, Hongbin Jin, Haihong Li, Zhengyi Shen
Format: Conference Proceeding
Language:English
Subjects:
Chirp modulation
Feature extraction
Force measurement
Hough transform
Instruments
Interference
multi-component LFM signal
Parameter estimation
Signal analysis
Time frequency analysis
time-frequency reassignment
Wavelet analysis
wavelet transform
Wavelet transforms
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Summary:Aiming on the problem of low precision and cross term in the conventional method of multi-component LFM signal detection and parameter estimation. A time-frequency associated analyzed method based on wavelet transform and time-frequency reassignment and Hough transform is propased. Overcome the interferences of cross term by wavelet transform, guarantee the accuracy by time-frequency reassignment, use the distribution of time-frequency after reassignment as the image, then achieves the interception of component and the estimate of parameter based on Hough transform. Simulation results show that this method is feasible.
DOI:10.1109/ICEMI.2009.5274665