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本文提出一种用多频信号源激励非线性电路并计算其稳态响应的有效算法,将多个不可通约的频率信号进行合理编排作为激励源,适用于稳态响应为非周期性的情况。该算法对含有相对于线性电感及电容数目极少的非线性元件的电路,则更为有效。该算法建立在应用“谐波平衡”和“最小二乘方”两种方法的基础上,不需要任何瞬态分析,在微型计算机上即可使用。
In this paper, an effective algorithm of multi-frequency signal source to stimulate nonlinear circuits and calculate their steady-state response is proposed. A number of irreducible frequency signals are reasonably orchestrated as excitation sources, and are suitable for situations where the steady-state response is aperiodic . This algorithm is more efficient for circuits that contain non-linear components with very few linear inductors and capacitors. The algorithm is based on the application of “Harmonic Balance” and “Least Squares”, and does not require any transient analysis and can be used on a microcomputer.