In intensity-modulated type optic fiber sensors, luminous intensity of a light source and operating stability of photoelectric receiver are the key factors for determining measuring accuracy.
在强度调制型光纤传感器中，光源发光强度和光电接收器工作的稳定性，是决定测量精度的关键因素。
2
At the receiver, the modulated optical carrier can be examined from a frequency filter to render target detection.
在接收端，通过频率滤波实现对编码信号的提取，由编码信号的信号处理实现激光雷达水下目标探测。
3
Implemented with SDRAM run nios, while saving camera data SRAM, Channelized receiver based on multi-phase structure, Random PPM modulated analog signal unde.