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本文对谱因式分解方法中的柯尔莫廓洛夫(Kolmosoroff)方法及由T.F.Quatieri与A.V.Oppenheim等人提出的迭代方法分别作了改进,前者针对柯尔莫廓洛夫方法当信号在Z平面上的零点离单位圆很近时产生很大误差的缺点,提出了检测误差与减少误差的方法,后者则松驰了T.F.Quatieri等人提出的条件,从而扩大其应用范围。两种改进方法部有相应的计算例子,计算的结果与分析是一致的。
In this paper, the Kolmogorov method in the spectral factorization method and the T F. Quatieri and A. V. The iterative methods proposed by Oppenheim et al. Have been improved respectively. The former proposed the Kolmogorov method to produce a large error when the zero point of the signal is very close to the unit circle in the Z plane. The detection error and error reduction Method, the latter is relaxed T. F. Quatieri et al proposed conditions, thereby expanding its scope of application. The two improved methods have corresponding calculation examples, and the calculated results are consistent with the analysis.