本文从回顾光学特征识别信号的稳定性入手，引入了一类最近出现的光学相关识别系统。
Starting with the invariance of OPR signal, the paper introduces a latest OPR system which can retain the intension of correlation output on occurrence of opposite rotation.
基于临界带能量特征的语音识别技术研究，光学测距离原理图。
With energy based on the critical characteristics of voice recognition technology, optical distance measurement diagram.
空间弹道目标的光学强度序列分析与识别特征的提取。
The exo-atmospheric ballistic target's optical signature and recognition feature is studied.
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