小信号前置通道抑制干扰信号的方法研究

The Study to the Method how the Pre-channel of Small-signal Computer's Detective System Resists interference

主要论述模拟信号的计算机检测系统前置通道干扰产生的机理和抑制的主要方法.对于小信号检测系统来说,前置通道的最主要功能是放大,故相同的干扰信号作用于前置通道的比作用于后向通道产生的影响要大得多,因此了解前置通道的干扰信号的产生机理和找到最佳抑制干扰的方法是保证设备正常工作的关键,这样对小信号检测系统前置通道的抗干扰方法的研究显得尤为重要.

This paper mainly focuses on the mechanism how the pre - channel of small - signal computer＇s detective system causes interference and the main measures to resist interference. For a small - signal detective system, the main function of the pre - channel is magnifying, so the impact which the pre - channel causes is much greater than the post - channel. The key question which ensures the equipment works normally is understanding the mechanism how the pre - channel causes interference signal and finding the best way of anti - interference. It is particularly important to study the method how the pre - channel of small - signal computer＇ detective system resists interference.