空间相干光通信中接收天线像差会使光外差效率下降。
Heterodyne efficiency is reduced by aberration of receiving antenna for space coherent optical communication.
光外差-塞曼调制磁旋转光谱技术是一种高灵敏的吸收光谱技术。
Optical heterodyne Zeeman modulation magnetic rotation spectroscopy (OHZM MRS) is a high sensitive spectroscopy technique.
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.
根据外差干涉计量术的原理，研制了非接触式的光外差干涉磁盘表面粗糙度测量仪。
This paper is concerned with the principle of a non - contact optical instrument for measuring the surface roughness of a magnetic disk with an opto-heterodyne interferometer.
本文介绍了由普通单模光纤构成的全光纤光外差检测系统的基本原理和实验研究结果。
The principle and experimental results of all-fibre optical heterodyne sys-tem, in which ordinary single mode fibres are used, are presented.
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.
光外差磁旋转速度调制光谱技术是一种对离子分子选择性测量的高灵敏激光吸收光谱技术。
Optical heterodyne magnetic rotation enhanced velocity modulation spectroscopy (OH-MR-VMS) is an absorption spectroscopic technique for selective detection of the molecular ions.
本文提出简化的光外差腔衰荡光谱技术，技术实现相对简单，更适合于分子振转光谱研究。
A simplified OH-CRDS, which is relatively easier to implement and more suitable for molecular ro-vibrational spectrum study, is suggested in the thesis.
②总结了光外差调制技术，理论推导了利用光外差调制技术产生的光载毫米波信号的频谱结构。
The second, we summarize the optical heterodyning modulation technology, and calculate the spectrum of optical mm-wave signal generated by this modulation technology.
本文详细推导了用振幅调制激光为光源外差激光探针的信号光与参考光干涉光强表达式。
In the paper. the interference intensity of signal laser beam and the reference one is carried out in detail on a heterodyne laser probe with amplitude modulated laser source.
共光路外差干涉仪具有很高的分辨率，但因为安装、调试误差会产生非线性误差，影响系统的测量精度。
Nonlinear errors caused by mis-installation of common-path heterodyne interferometer affected the measurement precision of the system.
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.
介绍了基于光实时延迟线、基于外差混频技术和基于矢量和技术的光子射频移相器，对其工作原理和技术特点作了分析。
Photonic RF phase shifters based on OTTD (optical true time delay), heterodyne mixing technique and vector sum technique were introduced. The principles and features were proposed and analyzed.
介绍了基于光实时延迟线、基于外差混频技术和基于矢量和技术的光子射频移相器，对其工作原理和技术特点作了分析。
Photonic RF phase shifters based on OTTD (optical true time delay), heterodyne mixing technique and vector sum technique were introduced. The principles and features were proposed and analyzed.
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