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Development and experimental verification of a robust active noise control system for a diesel engine in submarines

机译:潜艇柴油机鲁棒主动噪声控制系统的开发和实验验证

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This paper presents the development and experimental validation of an ANC (active noise control)-system designed for a particular application in the exhaust line of a submarine. Thereby, tonal components of the exhaust noise in the frequency band from 75 Hz to 120 Hz are reduced by more than 30 dB. The ANC -system is based on the feedforward leaky FxLMS-algorithm. The observability of the sound pressure in standing wave field is ensured by using two error microphones. The noninvasive online plant identification method is used to increase the robustness of the controller. Online plant identification is extended by a time-varying convergence gain to improve the performance in the presence of slight error in the frequency of the reference signal. (C) 2016 Elsevier Ltd. All rights reserved.
机译:本文介绍了为潜水艇排气管中的特定应用而设计的ANC(主动噪声控制)系统的开发和实验验证。由此,从75Hz到120Hz的频带中的排气噪声的音调成分减少了超过30dB。 ANC系统基于前馈泄漏FxLMS算法。通过使用两个误差麦克风,确保了在驻波场中的声压可观察性。非侵入性在线工厂识别方法用于提高控制器的鲁棒性。时变收敛增益可扩展在线工厂识别功能,从而在参考信号频率存在轻微误差的情况下提高性能。 (C)2016 Elsevier Ltd.保留所有权利。

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