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基于量子元胞自动机(QCA)电路,通过贝叶斯网络(Bayesian network,BN)对7种不同的传输线建模,研究了基本传输线的输出正确率随温度的变化规律。另外,通过概率转移矩阵(PTM)研究了7种不同结构的全加器的整体可靠性和输出Si以及进位输出Ci+1的平均输出错误率随错误因子的变化规律,并研究了各器件单元对全加器整体可靠性的影响。仿真结果表明,对于只有1个元胞宽度的传输线,直线型传输线有最高的可靠性,而且通过增加传输线的宽度可以提高传输线的可靠性。电路的可靠性不仅与电路结构有关,而且与电路器件单元的类型和门的数量密切相关。而且,产生进位输出Ci+1的择多门对电路的整体可靠性的影响最大,但不同的全加器的进位输出有相同的可靠性。
Based on quantum cellular automata (QCA) circuit, seven different transmission lines are modeled by Bayesian network (BN), and the variation of output accuracy of basic transmission line with temperature is studied. In addition, the overall reliability of seven kinds of full adders with different configurations and the variation law of the average output error rate of output Si and carry output Ci + 1 with the error factor were studied by the probability transfer matrix (PTM) Impact on the overall reliability of full adders. The simulation results show that for a transmission line with only one cell width, the linear transmission line has the highest reliability, and the reliability of the transmission line can be improved by increasing the transmission line width. The reliability of the circuit is not only related to the circuit structure but also to the type of circuit device unit and the number of gates. Furthermore, the multiplicity of gates that produce carry output Ci + 1 has the greatest effect on the overall reliability of the circuit, but the same output reliability of all full adders.