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信号加权函数逼近的有理函数,要满足赫维茨条件可实现网络有理函数,往往是很棘手的问题。有理函数一旦不满足赫维茨条件,就要重新选择逼近点计算。通常这样的计算既花费时间又无一定寻找规律,可以说全靠运气而获得。本文通过3:1锥比加权函数寻找可实现网络有理函数,介绍一种将非线性方程组转化为线性方程组的最小二乘法。这种高效率、有规律的寻找方法,对从事信号加权工作的人员是有用的。
Signal weighting function approximation of the rational function, to meet the Hurwitz conditions can be achieved network rational function, is often very tricky problem. Once the rational function does not satisfy the Hoechst condition, it is necessary to reselect the approximation point calculation. Usually such a calculation takes time and does not necessarily look for the law, it can be said to rely solely on luck. In this paper, the rational function of the network can be found through the 3: 1 cone ratio weighting function, and a least squares method to convert the nonlinear equations into linear equations is introduced. This efficient, regular method of finding is useful for people working on signal weighting.