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在电路分析理论中,人们已公认,利用网络函数H(s)可以求取相应网络变量的零状态响应,至于可否利用网络函数求取零输入响应,进而获得完全响应的问题,一般的教材中或未予正面回答,或未予深入讨论。笔者认为利用网络函数求完全响应,在一般情况下是充分的,在有些特殊情况下,只要谨慎从事,使H(s)的分子和分母中的公因式不被约去,同样能求得完全响应。基本思想在于,网络的任意一个H(s)的全部极点,就可确定网络的全部固有频率;由固有频率和初始状态求出零输入响应,由
In the theory of circuit analysis, it has been recognized that the network function H (s) can be used to obtain the zero-state response of the corresponding network variables. As for the possibility of using the network function to obtain the zero-input response and then to obtain the complete response, Or did not answer directly, or not discussed in depth. In the author’s opinion, using network functions to find the complete response is sufficient under normal circumstances. In some special cases, as long as the cautious approach is taken, the common factor in the numerator and denominator of H (s) Fully responsive. The basic idea is that all the poles of any one H (s) in the network can determine the entire natural frequency of the network. From the natural frequency and the initial state, the zero input response