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Improved bearing estimates of weak signals using stochastic resonance and frequency shift techniques

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4 Author(s)
Qinghua Ye ; Inst. of Acoust., Chinese Acad. of Sci., Beijing, China ; Haining Huang ; Xinyi He ; Chunhua Zhang

This paper presents a method to estimate bearings of weak signals using stochastic resonance (SR) and frequency shift techniques. After the signals received from the array sensors are translated to baseband and filtered by a stochastic resonator, the signal-to-noise ratio can be greatly enhanced. Higher performance for the beamforming output is obtained using the proposed method, comparing to the conventional beamforming result.

Published in:

OCEANS 2003. Proceedings  (Volume:5 )

Date of Conference:

22-26 Sept. 2003