Parameter estimation based on convolutional neural network and state sequence

WU Pin; CHANG Xuting; LANG Jialin; PAN Kaikai; GONG Siquan

doi:10.7638/kqdlxxb-2020.0057

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Parameter estimation based on convolutional neural network and state sequence

更新时间：2026-05-28

- Parameter estimation based on convolutional neural network and state sequence
- Vol. 39, Issue 4, Pages: 69-76(2021)
- 作者机构：
  
  1. 上海大学计算机工程与科学学院,上海,200444
  2. 中国空气动力研究与发展中心空气动力学国家重点实验室,绵阳,621000
- 作者简介：
- 基金信息：
- DOI：10.7638/kqdlxxb-2020.0057
  CLC： TP181;V211.3
- Published：2021
- 稿件说明：
移动端阅览
武频, 常旭婷, 郎佳林, 等. 基于卷积神经网络和状态时间序列的参数辨识[J]. 空气动力学学报, 2021, 39(4): 69−76.

WU Pin, CHANG Xuting, LANG Jialin, et al. Parameter estimation based on convolutional neural network and state sequence[J]. 2021, 39(4): 69-76.
武频, 常旭婷, 郎佳林, 等. 基于卷积神经网络和状态时间序列的参数辨识[J]. 空气动力学学报, 2021, 39(4): 69−76. DOI： 10.7638/kqdlxxb-2020.0057

WU Pin, CHANG Xuting, LANG Jialin, et al. Parameter estimation based on convolutional neural network and state sequence[J]. 2021, 39(4): 69-76. DOI： 10.7638/kqdlxxb-2020.0057.

摘要

针对参数辨识过程运算时间长的问题，本文提出一种基于卷积神经网络的参数辨识方案。该方案避免了对数值模型的大量迭代，能够根据多个连续时间步的实测系统状态对多参数进行快速估计，实现参数辨识；同时，为了帮助神经网络更好地提取特征，还引入一种双向标准化的方法对数据进行处理。以Lorenz63为实例，对其参数进行了分析、实验。实验结果表明：该方案能够有效地估计当前物理场状态对应的模型参数，并且计算时间仅为传统方法的4%，大大提升了计算效率。

Abstract

To reduce the time cost in parameter estimation processes

a new parameter estimation scheme based on a Convolutional Neural Network is proposed. This scheme can quickly estimate multiple parameters based on a temporal sequence of system states by avoiding time-consuming iterations of numerical models. At the same time

a two-way standardization method is used to help the neural network extract features better. The scheme has been tested in a Lorenz63 nonlinear system. Results show that it can effectively estimate model parameters corresponding to the current physical state with a calculation time only 4% of the particle swarm optimization method.

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