A new structure of tunable polarization interference dense wavelength division multiplexing (DWDM) filter based on the analog birefringent module is presented.
提出了一种基于模拟双折射模块的可调谐偏振光干涉型密集波分复用滤波器(DWDM)的新结构。
According to the need of precision, 5 cascaded low pass filter approaching the analog Gaussian low pass filter.
根据精度要求，模拟高斯低通滤波器采用5阶低通滤波器来进行逼近。
The digital filter was done to the output signal of the analog ultrasonic sensor.
对模拟量超声波传感器的输出信号进行了数字滤波。
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