1.  heterodyne method
2.  heterodyning

• 1. 外差法: heterodyne | Heterodyning | heterodyne method | process of heterodyning
• 2. 低外差法: infradyne
• 3. 等幅外差法: equal heterodyne

更多释义

• 1.本文提出了一种新的方法，多普勒外差法测量表面面形，并首次提出和制作了同步相位计。
  This paper describes a new method, Doppler heterodyne measurement method of surface profile, using a simultaneous phase comparator.
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• 2.文本用纵向塞曼双频稳频激光器作光源，提出了一种光学超外差法小平面角的精密测量方法。
  This paper discussed an opto-heterodyne technique for small-plane-angle measurement with a frequency-stabilized longitudinal Zeeman laser as the light source.
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• 3.介绍了两种激光外差干涉信号的处理方法锁相频率解调法及组合频率解调法。
  Two kinds of signal processing methods for heterodyne interferometer, phase locked frequency demodulation and combinatorial frequency demodulation are presented in this paper.
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