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Method for simulating an electronic system based on a model comprising nonlinear blocks
Method for simulating an electronic system based on a model comprising nonlinear blocks
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机译：基于包括非线性块的模型的电子系统的仿真方法
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摘要
The invention relates to a method for simulating an electronic system based on a model of the electronic system comprising at least one nonlinear block, said block receiving an input signal x(t) and generating an output signal y(t) as a K-order polynomial of signal x(t), K being higher or equal to 2, said method comprising steps of :a- (S1) decomposing the input signal x(t) into a number N of band-pass input signals, such that x(t) = x1(t)+x2(t)+...+xN(t), each band-pass input signal xi(t) being centered on a frequency fi,b- (S2) computing of a Fourier transform Xi(f) for each band-pass input signals xi(t),c- (S3) for k ranging from 2 to K, computing a set [Xi(k)] of k-order signals, by convolving the signal Xi(f) with each k-1th order signal of the set [Xj(k-1)], j ranging from i to N, starting from [Xj(1)] = Xj(f)(1) = Xj(f),d- (S4) computing the output signal Y(f) as a linear combination of signals of the sets [Xi(k)], i ranging from 1 to N, k ranging from 1 to K, Y(f) being y(t) expressed in the frequency domain.
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机译：本发明涉及一种用于基于包括至少一个非线性块的电子系统的模型来模拟电子系统的方法，所述块接收输入信号x（t）并生成作为K阶的输出信号y（t）。信号x（t）的多项式，K等于或大于2，所述方法包括以下步骤：a-（S1）将输入信号x（t）分解为N个带通输入信号，使得x（t）= x 1 （t）+ x 2 < /Sub>(t)+...+xN(t），每个带通输入信号x i （t）以频率f i ，b-（S2）计算每个带通输入信号x i （t）的傅立叶变换X i （f），c-（S3）对于从2到K的k，通过对信号X i （k）] > i （f），每个信号集[X j （k-1）]的第k-1个 阶信号，j从[X j （1）]到X j （f）（1） = X j （f），d-（S4）计算输出信号Y（f）作为集合[X i （k）]，i的范围从1到N的信号的线性组合，k在1到K之间，Y（f）是在频域中表示的y（t）。
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