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Proceedings Paper

A detection method of signal frequency based on optimization theory
Author(s): Chunyan Nie; Yaowu Shi; Zhuwen Wang; Bin Guo
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Paper Abstract

The sensitive characteristic to initial value of chaos system and the immunity to noise sufficiently demonstrate the superiority in weak signal detection. In this paper Duffing equation is used as system detection model, on the basis of optimization theory, a most optimization searching method, which takes the variance of output X as the detected value is present. The basic principle and the theoretical algorithm about detecting the weak signal with this method are proposed. At the same time, the simulation experiments and the result analysis are given. The results indicated this method is rapidly, simple, convenient and the accuracy is high, which is a novel detecting frequency method. If this method were applied in signal processing field or other application field, it would have practical significance.

Paper Details

Date Published: 24 October 2006
PDF: 7 pages
Proc. SPIE 6357, Sixth International Symposium on Instrumentation and Control Technology: Signal Analysis, Measurement Theory, Photo-Electronic Technology, and Artificial Intelligence, 635701 (24 October 2006); doi: 10.1117/12.716671
Show Author Affiliations
Chunyan Nie, Jilin Univ. (China)
Changchun Univ. (China)
Yaowu Shi, Jilin Univ. (China)
Zhuwen Wang, Jilin Univ. (China)
Bin Guo, Jilin Univ. (China)


Published in SPIE Proceedings Vol. 6357:
Sixth International Symposium on Instrumentation and Control Technology: Signal Analysis, Measurement Theory, Photo-Electronic Technology, and Artificial Intelligence
Jiancheng Fang; Zhongyu Wang, Editor(s)

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