基于客观性、可靠性、实用性的原则，应用模糊聚类分析与相关分析结合的方法对交通量观测站进行宏观布设。

Based on the principles of objectivity, reliability and practicability, this paper set up traffic count stations using fuzzy clustering and correlation analysis.

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传统语音信号谱特征的提取是基于FFT 的能谱分析方法，在噪音环境情况下，对噪音的频谱成分与语音信号的频谱成分的处理采用“平均主义”的原则。

Traditional speech signal processing is based on FFT power spectral analysis, in noisy condition, the spectrum of noise and speech signal are processed in the same way.

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根据光学扩展量理论分析了LED选型方法，总结了基于LED光纤传输照明系统的设计原则和要点。

LED type choosing method is analyzed according to etendue theory. Fiber transmission based on LED illumination system design principle and design key points are summarized.

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