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本文简述了利用波特公式,由最小相移系统的幅频函数求其相频函数的数值积分算法。作者用FORTRANⅣ实现了这个算法,给出了部分计算结果,并作了简单的误差分析。
In this paper, we introduce the numerical integration algorithm of phase-frequency function using amplitude-frequency function of minimum phase-shift system by using Porter’s formula. The author realizes this algorithm with FORTRAN Ⅳ, gives some calculation results and makes a simple error analysis.