舰船电子工程2018，Vol.38Issue(6)：104-108,5.DOI:10.3969/j.issn.1672-9730.2018.06.027
含初值的遥测速度和位移振动信号时域提取方法研究
Study on Extraction Method in Time Domain as Applied to Telemetry Velocity and Displacement Vibration Signals with Initial Value
徐洪洲 1王万金 1张志国1
作者信息
- 1. 91550部队94分队 大连 116023
- 折叠
摘要
Abstract
In view of the vibration velocity and displacement during the flight test aircraft structure is not easy to obtain direct, propose using the differential relationship between acceleration with velocity and displacement in the time domain numerical integra?tion directly to obtain the velocity and displacement vibration acceleration vibration signals through telemetry signal acquisition, consider the initial value of velocity and displacement effect on the integration result of a non-zero,using the least squares polynomi?al fitting method of velocity and displacement initial value estimate,based on the results of the integration was amended to ensure the accuracy of the results. The relative error method on the simulation application acceleration vibration signals,velocity and dis?placement can be controlled to obtain results within five thousandths,obtaining high-precision results show the applicability and re?liability of the method will be applied to aircraft flight test found process data,telemetry acquired vibration velocity and displace?ment signals,the result is higher degree of confidence.关键词
遥测速度信号/遥测位移信号/初始值估计/时域数值积分Key words
telemetry speed signal/telemetry displacement signal/initial value estimate/time domain numerical integration分类
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徐洪洲,王万金,张志国..含初值的遥测速度和位移振动信号时域提取方法研究[J].舰船电子工程,2018,38(6):104-108,5.
