Active Control of Low Frequency Linear Spectrum by Estimating Receivers Location

Cheng Jun Hu; Yuan Zheng

doi:10.4028/www.scientific.net/AMR.816-817.385

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 816-817Active Control of Low Frequency Linear Spectrum by...

Active Control of Low Frequency Linear Spectrum by Estimating Receivers Location

Abstract:

An approach to actively control the low frequency linear spectrum in vessel navigation noise is proposed. The approach relies on the introduction of a secondary noise-cancellation source which is fixed aboard and whose signal generation uses the estimated location knowledge of the receiver. Loss of underwater acoustic transmission is modeled and Monte Carlo simulations are conducted to analyze the noise-reduction effects under different location estimation errors. Simulation results show that bearing estimation error is the predominant factor affecting the radius of the effective noise-reduction region, while distance estimation error has considerable effect only when the perpendicular distance from the receiver to vessels course is quite small. Besides, when bearing estimation error is less than 1.2° and distance estimation error is less than 80%, satisfactory noise reduction region can be obtained using the approach.

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Periodical:

Advanced Materials Research (Volumes 816-817)

Pages:

385-388

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.816-817.385

Citation:

Cite this paper

Online since:

September 2013

Authors:

Cheng Jun Hu, Yuan Zheng

Keywords:

Active Noise Control, Location Estimation Error, Low Frequency Linear Spectrum, Vessel Navigation Noise

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