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6 July 2015 An adaptive method to detect weak signal utilizing duffing oscillator
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Proceedings Volume 9631, Seventh International Conference on Digital Image Processing (ICDIP 2015); 96311W (2015) https://doi.org/10.1117/12.2197174
Event: Seventh International Conference on Digital Image Processing (ICDIP15), 2015, Los Angeles, United States
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.
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Shuo Shi, Tenghu Guo, and Xuemai Gu "An adaptive method to detect weak signal utilizing duffing oscillator", Proc. SPIE 9631, Seventh International Conference on Digital Image Processing (ICDIP 2015), 96311W (6 July 2015); https://doi.org/10.1117/12.2197174
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