符号网络分析的应用

Proceedings of Third International Conference on Electronics, Circuits, and Systems Pub Date : 1996-10-13 DOI:10.1109/ICECS.1996.582705

M. Topa, E. Simion

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引用次数: 2

摘要

符号网络分析是一种形式技术，与数值分析相补充，用于计算具有自变量频率，因变量电压和电流以及由符号表示的部分或全部电路元件的电路的行为或特性。符号函数的求值比用数值模拟器反复计算要容易得多，速度也快得多。给出了集总线性或线性化时不变电路的符号网络分析程序。利用代数表达式的符号处理，采用基于矩阵的方法计算网络函数及其对元素值的敏感性。符号网络分析的一个有趣的应用是噪声计算，这是模拟工程师必须执行的最困难的任务之一。得到了系统噪声度量的符号表达式。

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Applications of symbolic network analysis

Symbolic network analysis is a formal technique, complementary to numerical analysis, to calculate the behaviour or a characteristic of a circuit with independent variable frequency, dependent variables voltages and currents and some or all of the circuit elements represented by symbols. The evaluation of the symbolic functions is much easier and faster than working repeatedly with a numerical simulator. A program for symbolic network analysis, of lumped linear or linearised time invariant circuits is presented. The network functions and their sensitivities with respect to the element values are computed with a matrix-based method, using symbolic manipulation of algebraic expressions. An interesting application of the symbolic network analysis is noise computation, one of the most difficult tasks that an analog engineer must perform. Symbolic expressions for the system noise measures are obtained.

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Proceedings of Third International Conference on Electronics, Circuits, and Systems

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