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。
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)。
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.