近年來出現的離散事件系統（DES）理論為數模混合電路的測試提供了一種新的解
決思路，本文對DES 理論在求取數模混合電路的可測試性和最小測試集中的應用進行了論述。該種方法可以在計算機上用C++語言實現。
關鍵詞：數模混合電路，離散事件系統，可測試性，最小測試集,故障覆蓋率。
The research of the testability of Mixed-signal circuits based on the DES theory
ZHANG Qibo, LU Changhua, JIANG Weiwei (Hefei University of Technology, Hefei 230009) Abstract：The discrete event system theory that is developed in the recent years gave a new method for the mixed-signal circuits testing. This paper illustrates the application of the DES in the getting of testability and the minimum test set of the mixed-signal circuits. This method can be realized on computer by the C++.
Keywords: the Mixed-signal circuits ,the Discrete event system theory ,the Testability ,the Minimum test set ,the Fault efficiency.