| 有源消声耳罩中的通信信号补偿 |
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| 引用本文： | 张耿,连小珉,刘锋,蒋孝煜.有源消声耳罩中的通信信号补偿[J].应用声学,1999,18(4):13-17. |
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| 作者姓名： | 张耿 连小珉 刘锋 蒋孝煜 |
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| 作者单位： | 清华大学汽车工程系北京,100084 |
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| 摘 要： | 在有源消声罩的很多应用场所，耳罩中引入了通信信号，在提高有源消声量的同时，还要保证通信信号的清晰。本文针对有源消声耳罩的不同消声结构，分析了其中通信信号所受到的影响，对于通信信号受影响较大的消声结构，提出了相应的补偿方案，推导了补偿器的理论补偿公式，并且实际设计了消声耳罩和相应的通信信号补偿器，实测了通信信号的补偿效果，就实验结果分析了通信信号补偿方案的有效性。
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| 关 键 词： | 耳罩 有源式 消声耳罩 通信信号 信号补偿 |
Compensation of communication signal in active noisecancellation earmuffs |
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| Zhang Geng,Lian Xiaomin,Liu Feng and Jiang Xiaoyu.Compensation of communication signal in active noisecancellation earmuffs[J].Applied Acoustics,1999,18(4):13-17. |
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| Authors: | Zhang Geng Lian Xiaomin Liu Feng and Jiang Xiaoyu |
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| Institution: | Automotive Department, Tsinghua University, Beijing 100084;Automotive Department, Tsinghua University, Beijing 100084;Automotive Department, Tsinghua University, Beijing 100084;Automotive Department, Tsinghua University, Beijing 100084 |
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| Abstract: | In many applications of
Active Noise-Cancellation Earmuff(ANCE),communication signal is introduced into the
earmuff while the functionof active noise cancellation is being realized. Keeping the
clarity ofcommunication signal is as important as enhancing the ability of activenoise
cancellation. This paper will analyze the influence on thecommunication signal in
different types of ANCEs, and then propose acompensation method for the type of ANCE in
which the communicationsignal is affected. A design of the compensator for the
communicationsignal is realized and its compensation effect is tested with the resultthat
the effectiveness of the compensation method is verified. |
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