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Method for carrying out data correction by using vector fitting

A technology of vector fitting and data correction, applied in the field of vector fitting of passive device modeling, it can solve problems such as difficulty in guaranteeing accuracy and complicated causal correction of experimental data, and achieve the effect of avoiding numerical integration

Active Publication Date: 2021-06-29
北京华大九天科技股份有限公司
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Problems solved by technology

[0016] The above difficulties will make the causal correction of experimental data more complicated, and the accuracy is difficult to guarantee

Method used

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  • Method for carrying out data correction by using vector fitting
  • Method for carrying out data correction by using vector fitting
  • Method for carrying out data correction by using vector fitting

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Embodiment Construction

[0049] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0050] figure 1 For the method flowchart that utilizes vector fitting to carry out data correction according to the present invention, reference will be made below figure 1 , the method for data correction by vector fitting of the present invention is described in detail.

[0051] First, in step 101, the given original data set (ω i ,y i ), i=1,...,N as the fitting object, and set the convergence threshold ϵ.

[0052] Preferably, given the original data (ω i ,y i ), i=1,..., N, where, ω i is the i-th frequency point, y i is ω i The value of the corresponding physical quantity, which can be an S parameter, a Y parameter, etc., and N is the number of data points...

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Abstract

The invention discloses a method for carrying out data correction by utilizing vector fitting. The method comprises the following steps of setting a given original data set as a vector fitting object; establishing a data set of vector fitting, performing primary iteration of vector fitting, and generating a new data set after iteration; and judging whether the new data set meets a convergence condition or not, and when the convergence condition is met, outputting a result that the new data set is subjected to causality correction. According to the method for correcting the data by using the vector fitting, the corrected data can meet causality, and the passivity of the data can be ensured by subsequently adopting the standard passivity correction.

Description

technical field [0001] The invention relates to the technical field of vector fitting for passive device modeling, in particular to a causal correction method using vector fitting. Background technique [0002] The vector fitting is widely used in the modeling process of passive devices. Especially in the modeling of transmission lines, people use the W-element or S parameter method to give the physical description of the transmission line. When the signal passes through the transmission line, in order to correctly calculate the output signal, it is usually necessary to use vector fitting to obtain the transmission line in the frequency domain. impulse response. that is [0003] (1) [0004] During the vector fitting process, the user needs to provide the data of the frequency spectrum at discrete points, such as S parameters, Y parameters, etc. The impulse response of the system is obtained by vector fitting. When there is an input signal, the output signal is calcu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 张进宇吴大可周振亚
Owner 北京华大九天科技股份有限公司
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