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The Analysis of the Speech of Communication Vocabulary of Military Pilot and Factors Affecting the Intelligibility

机译：军事飞行员通信词汇言论分析及影响理智的因素

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摘要

The vocabularies of communication used by military pilot and related to failure are established in this paper. The Chinese speeches of the words of the vocabularies are analyzed in time, frequency and spectrogram domain. The result shows that: (1) the main energy of these words concentrates mostly on the lower band, below 4000 Hz, it is the characteristic of the Chinese speech of the most words in above vocabularies. (2) the formants of each phoneme are less than five, and the first three formants are between 200 - 3200 Hz. The factors correlated to the speech intelligibility of military pilot, throat pickup, acoustic noise in cockpit, communication channel, recording device in control tower, are analyzed detailedly. The conclusions are obtained that the main factors affecting the intelligibility are throat pickup and the acoustic noise in cockpit. It is pointed out that the noise in cockpit occupies the same frequency band as the speech of pilots and the conventional filters with fixed parameters are not available to filter the noise from the speech. The method of improving pickup is proposed.
机译：在本文中建立了军事飞行员和失败相关的通信词汇。在时间，频率和频谱结构域中分析了词汇字词的中文语音。结果表明：（1）这些词的主要能量主要集中在下频段，低于4000赫兹，它是上述词汇表中汉语言论的特征。 （2）每种音素的植物少于五，前三种素质在200 - 3200 Hz之间。详细分析了与军事飞行员，喉头拾取，声学噪声，控制塔中的驾驶舱，通信通道，记录装置中的军事飞行员，喉咙拾取，声学噪声的语音清晰度相关的因素。获得的结论是，影响可懂度的主要因素是喉头拾取和驾驶舱中的声噪声。指出，驾驶舱中的噪声占据相同的频段，因为飞行员的语音和具有固定参数的传统滤波器无法过滤来自语音的噪声。提出了改进拾取的方法。

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