Based on the concepts of randomness and fuzziness, a fuzzy reliability analysis method of probability density function equivalent is proposed in this article.
依据随机性和模糊性的基本概念，提出了当量概率密度函数的模糊可靠性分析方法。
At last, making use of the plotting function of MATLAB, the paper carries out simulation analysis from three aspects: auto-correlation function, spectrum and fuzzy function.
最后，利用M atlab软件的作图功能，从自相关函数、频谱函数和模糊函数三个方面对M波形的性能进行了仿真分析。
In this paper, the fuzzy membership function is built by analysis on design parameters' fuzzy attribution, and optimization values are obtained on the basis of fuzzy aggregate expand theory.
通过对设计参数的模糊分析建立模糊隶属函数，由模糊集合扩展理论求取设计参数的优化值。
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