The maximum level of muffling being taken as object function, the parameters of muffler's whole structures have been optimized by using the method of dynamic transfer matrix analysis.

本文用消声器动态传递矩阵分析方法，以最大消声量为目标函数，对消声器的总体结构参数进行了优化。

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This method is essential for the stability of a class of objects outside the loop transfer function matrix, in the decoupling both before and after decoupling is an essentially stable object.

提出了针对一类开环传递函数矩阵对象为本质稳定及解耦后仍是本质稳定时系统的冗余设计方法。

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