- 會議論文
Development of a Noise Cancellation Headset by Adaptive Control
應用適應性控制之减噪耳機的發展
摘要
在機艙環境中，以減噪耳機來提供必要的聽力保護，比起在機艙內設置減噪裝置來得適當。本文提出了一個減噪耳機的設計，此耳機包含了一對喇叭與麥克風、放大電路、TMS320C32數位訊號處理器，和Filter-X LMS適應性控制法則。實驗結果顯示此耳機可有效降低低頻的噪音達20dB，因此應可有效地增加飛行舒適性及減少飛行員之疲勞。
關鍵字
無資料並列摘要
A noise cancellation headset that offers sufficient hearing protection while facilitating in-flight communications has been known preferable to in-cockpit applications. This paper presents the design of a noise cancellation headset. The headset consists of a pair of speaker and microphone, the amplifier circuit, and the Filter-X LMS adaptive control algorithm implemented in a TMS320C32 digital signal processor. Experimental results show that the headset is effective in attenuating the steady state low- frequency noises. This development shall significantly reduce the pilot fatigue while enhancing the flight comfortability.
並列關鍵字
無資料延伸閱讀
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