Using the way of homodyne coherent detection, a fiber laser Doppler vibrometer is designed and completed.
采用零差的相干探测方式，设计并实现了一套光纤结构的激光多普勒振动计。
2
An alternating current phase tracking (PTAC) homodyne scheme has been used to process output signal of the Michelson interferometer.
在信号处理过程中采用了交流相位跟踪零差补偿技术(PTAC)。
3
The shot noise and thermal noise with homodyne demodulation technique is given in this article. And phase noise induced with different time delay is also analyzed.