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Proceedings Paper

An adaptive method to detect weak signal utilizing duffing oscillator
Author(s): Shuo Shi; Tenghu Guo; Xuemai Gu
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Paper Abstract

At present, most of the researches set amplitude of driving force fixed when detecting weak signal buried in noise utilizing Duffing oscillator. In this paper, we find the critical value of driving force corresponding to critical state varies with noise power. Taken this into consideration, a new adaptive method to detect weak signal is proposed. In this method, the amplitude of driving force is determined by input power. The simulation results indicate that lowest threshold of SNR can be acquired in this method is lower than that in the methods proposed in most papers.

Paper Details

Date Published: 6 July 2015
PDF: 5 pages
Proc. SPIE 9631, Seventh International Conference on Digital Image Processing (ICDIP 2015), 96311W (6 July 2015); doi: 10.1117/12.2197174
Show Author Affiliations
Shuo Shi, Harbin Institute of Technology (China)
Tenghu Guo, Harbin Institute of Technology (China)
Xuemai Gu, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 9631:
Seventh International Conference on Digital Image Processing (ICDIP 2015)
Charles M. Falco; Xudong Jiang, Editor(s)

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