A Tolerance Modeling and Analysis Method of Circuit System Based on Response Surface Method

A circuit system and analysis method technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., to achieve the effect of authentic and credible prediction results

Active Publication Date: 2020-10-09
BEIHANG UNIV +1
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  • Application Information

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Problems solved by technology

At present, there is no research on the combination of response surface method and Monte Carlo method for the tolerance design of circuit systems

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  • A Tolerance Modeling and Analysis Method of Circuit System Based on Response Surface Method
  • A Tolerance Modeling and Analysis Method of Circuit System Based on Response Surface Method
  • A Tolerance Modeling and Analysis Method of Circuit System Based on Response Surface Method

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Embodiment Construction

[0048] Exemplary embodiments, features, and aspects of the present invention will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0049] A circuit system tolerance modeling and analysis method based on the response surface method of the present invention, such as figure 1 As shown, it includes the following steps:

[0050] S1: Carry out structural and functional analysis of the selected circuit system, determine the nominal value of each component parameter according to the component manual, and build a circuit system simulation model. The circuit system simulation model in step S1 is a SPICE model (integrated circuit simulation model) obtained by abstracting the actual circuit system for simulating and solving ci...

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Abstract

The present invention provides a circuit system tolerance modeling and analysis method based on the response surface method, which includes S1, structure and function analysis, obtaining the nominal value of each component parameter and constructing a circuit system simulation model; S2, analyzing the component parameters Random sampling, building component parameter sample space; S3, calling SPICE tool for simulation, and recording simulation data; S4, building simulation data space, and dividing it into two subspaces: sample space for model fitting and sample space for model checking ; S5, using the data in the sample space for regression fitting of the least squares method to obtain the response surface model; S6, using the sample space for testing to test and fit the response surface model; S7, finding the first-order partial for the response surface model Guide to determine the ranking of the influence of components on tolerance. The method of the invention is based on the calculation result of Monte Carlo simulation, and guides the tolerance design of the circuit system by constructing the response surface model of the characteristic parameters of the circuit system, thereby improving the consistency level of the circuit system.

Description

technical field [0001] The invention relates to the technical field of circuit system tolerance modeling and analysis, in particular to a circuit system tolerance modeling and analysis method based on a response surface method. Background technique [0002] Circuit systems are widely used in various fields such as national defense industry, intelligent manufacturing, transportation, etc. In the process of circuit design, the overall design of the circuit system is usually carried out according to the nominal values ​​determined in the component manual. However, due to the influence of the manufacturing process and operating conditions, there will be a certain error between the parameter values ​​of each component in the actual circuit system and the nominal value selected in the design process, which will cause the actual circuit performance to be different from the designed one. There are bound to be differences in circuit performance. This performance difference will cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F30/398
CPCG06F30/398G06F30/20
Inventor 陈云霞卢震旦金毅何小斌
Owner BEIHANG UNIV
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