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详细叙述了高频语抗噪声通讯系统工作原理和研制思想。实验结果证明 ,该语音系统具有较强的抗噪声功能。高频语声级 85、90、95dB(A) ,分别对应环境噪声 95、10 0、10 5dB(A) ,语音可懂度达 90 %以上 ;高频语声级 90dB(A) ,舰船主机噪声 10 5dB(A)的现场试验 ,结果也达到 90 %。实验显示 ,噪声环境下使用高频语通讯 ,佩戴耳塞的效果优于裸耳。该系统在语音信号、环境噪声比为_10至_15dB时语音可懂度达 90 %以上 ,突破了传统的语言传递遵循部位机理的信号环境噪声比必须为 + 5dB的论点
Described in detail the working principle and development idea of high-frequency language anti-noise communication system. Experimental results show that the voice system has strong anti-noise function. High-frequency phonetic level 85,90,95dB (A), respectively corresponding to 95,10 0,10 5dB (A) of ambient noise, speech intelligibility up to 90%; high-frequency speech level 90dB (A) Host noise 10 5dB (A) of the field test, the results also reached 90%. Experiments show that the use of high frequency language communication noise environment, wear ear plugs better than bare ears. The speech intelligibility of the system is above 90% when the speech signal and the ambient noise ratio are from 10 to 15 dB, which overcomes the argument that the signal-to-noise ratio of the traditional language transfer following the part mechanism must be + 5dB