On the base of a plenty of facts we suggested a method in which bi-Gaussian form is approached the output pulse in multimode fibers The accuracy measuring band in time domain can be improved highly.
在综合大量实例的基础上，提出双高斯函数逼近多模光纤的光脉冲输出的解析近似方法，使时域法确定光纤带宽的精度大为提高。
R2, R3, and C2 form an integrator, which produces an output voltage proportional to the pulse width of the input signal.
R2的，R3的，和C2形成一个集成，产生一个输出电压成正比的脉冲宽度的输入信号。
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