采用响度控制改进算法的封闭车厢主动消声

姜顺明;陈 南

振动与冲击 ›› 2013, Vol. 32 ›› Issue (5) : 167-170.

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PDF(1596 KB)
振动与冲击 ›› 2013, Vol. 32 ›› Issue (5) : 167-170.
论文

采用响度控制改进算法的封闭车厢主动消声

  • 姜顺明1,2,陈 南2
作者信息 +

Active Loudness Control of Enclosed Cabin Noise by Using New Algorithm

  • JIANG Shun-ming1,2 , CHEN Nan1
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文章历史 +

摘要

以响度为噪声主动控制目标,提出逆模型结构和延迟补偿结构相结合的LFLMS改进算法。以轿车封闭车厢为载体构建双通道主动消声系统。以发动机噪声为噪声源,用三种控制算法进行试验,结果表明LFLMS改进算法与LFLMS算法的控制效果相近,且收敛速度快;响度控制声压减小不及声压控制,但响度减小量更大,主观听觉效果更好。

Abstract

The control objective of active noise control (ANC) system is modified from minimizing sound pressure to minimizing loudness. The improved loudness-filtered least square mean (LFLMS) algorithm is derived based on delay-compensated structure and inverse-model structure. A double channel ANC system is installed in a passenger car cabin. Three algorithms are used to attenuate the engine noise in the cabin. The experimental results indicate that the improved LFLMS algorithm converge faster than LFLMS algorithm, and the loudness control can achieve better subjective effects than the sound pressure control in terms of loudness reduction.

关键词

主动消声 / 响度 / 车厢 / 主观

Key words

active noise control / loudness / cabin / subjective

引用本文

导出引用
姜顺明;陈 南. 采用响度控制改进算法的封闭车厢主动消声[J]. 振动与冲击, 2013, 32(5): 167-170
JIANG Shun-ming;;CHEN Nan. Active Loudness Control of Enclosed Cabin Noise by Using New Algorithm[J]. Journal of Vibration and Shock, 2013, 32(5): 167-170

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