An adaptive method to detect weak signal utilizing duffing oscillator

Shuo Shi; Tenghu Guo; Xuemai Gu

doi:10.1117/12.2197174

6 July 2015 An adaptive method to detect weak signal utilizing duffing oscillator

Shuo Shi, Tenghu Guo, Xuemai Gu

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.

Citation Download Citation

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

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available