噪声消除处理器的实验测试。

Experimental testing of the noise-canceling processor.

机构信息

Naval Research Laboratory, Stennis Space Center, Mississippi 39529, USA.

出版信息

J Acoust Soc Am. 2011 Sep;130(3):1217-21. doi: 10.1121/1.3621059.

Abstract

Signal-processing techniques for localizing an acoustic source buried in noise are tested in a tank experiment. Noise is generated using a discrete source, a bubble generator, and a sprinkler. The experiment has essential elements of a realistic scenario in matched-field processing, including complex source and noise time series in a waveguide with water, sediment, and multipath propagation. The noise-canceling processor is found to outperform the Bartlett processor and provide the correct source range for signal-to-noise ratios below -10 dB. The multivalued Bartlett processor is found to outperform the Bartlett processor but not the noise-canceling processor.

摘要

在水箱实验中测试了用于定位噪声中掩埋声源的信号处理技术。噪声是使用离散源、气泡发生器和洒水器产生的。该实验具有匹配场处理中实际场景的基本要素，包括波导中的复杂声源和噪声时间序列、水、沉积物和多径传播。发现噪声消除处理器优于巴特莱特处理器，并为信噪比低于-10dB 的信号提供正确的源范围。发现多值巴特莱特处理器优于巴特莱特处理器，但不如噪声消除处理器。