• CN：11-2187/TH
  • ISSN：0577-6686
机械工程学报

›› 1993, Vol. 29 ›› Issue (1): 96-101.

• 论文 • 上一篇    下一篇

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短样本密集模态数据高精度识别方法的研究

沙伟平;胡子正;王有   

  1. 吉林工业大学
  • 发布日期:1993-01-01

A STUDY ON HIGH PRECISION IDENTIFICATION PROCEDURE BY USE OF SHORT SAMPLE AND DENSE MODE DATA

Sha Weiping;Hu Zizheng;Wang You   

  1. Jilin University of Technology
  • Published:1993-01-01

摘要： 运用现代控制理论识别结构的动力学参数有频域法和时域法两类。本文综合两类方法的特点，提出“时域—频域”综合识别模式以提高具宽频宽、密集模态特征结构的参数识别精度和置信度。文中论述了“时域—频域”识别模式的基本思想和数学原理，并给出了工程应用实例。

关键词: 精度, 矩阵, 模式识别

Abstract: It is a kind of important method that structural parameters are identified by use of testing impulse response data. This paper presents a synthetic “ Time-Frequency Domain (TFD)” identification procedure in order to improve the accuracy of parameter identification of systems with wide frequency band and dense modes. The mathematical principle about TFD identification method are discussed. A practical example in engineering is shown.

Key words: Matrix, Mode identification, Precision

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