提出了一套新颖扫描成像系统方案，它综合了共焦扫描方式与光外差探测方法的优点。
The influences of atmospheric turbulence on interference efficiency due to the angle of arrival fluctuation in the laser heterodyne detection system were presented.
本文叙述了用位相调制光外差技术探测光学谐振腔反射特性的原理及实验结果。
The principle and experimental results of phase modulation optical heterodyne detection technique for measuring reflection of optical cavity are described.
文中着重分析了方波控制激光器的频谱形式、光信号外差探测装置和电信号解调原理。
The spectrum form of square-wave controlled laser, optical signal heterodyne detecting device and principle of electrical signal demodulation are considered with emphasis.
文中着重分析了方波控制激光器的频谱形式、光信号外差探测装置和电信号解调原理。
The spectrum form of square-wave controlled laser, optical signal heterodyne detecting device and principle of electrical signal demodulation are considered with emphasis.
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