Cancelling Tow Ship Noise Using an Adaptive Model-Based Approach.

Candy, J. V. ; Sullivan, E. J.

Technical Information Center Oak Ridge Tennessee

关键词: Tow-ship noise;    Noise cancellation;    Array measurements;    Mathematical models;    Equations;   

RP-ID  :  DE2005859381

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Ship noise is a major contributor to towed array measurement uncertainties that can lead to large estimation errors. Many approaches ignore this problem, since they rely on inherent narrowband processing to remove these effects. The overall signal-to-noise ratio (SNR) available is therefore decreased making the signal extraction problem more difficult. In this paper we discuss the development of an adaptive modelbased processor (AMBP) for signal enhancement from a set of noisy hydrophone measurements contaminated with tow ship noise. These results provide a solution to the adaptive joint cancellation/signal enhancement problem. Here we concentrate on the underlying theoretical development demonstrating the relationship between the canceller and model-based signal enhancer.