噪声与振动控制2025，Vol.45Issue(3)：127-131,157,6.DOI:10.3969/j.issn.1006-1355.2025.03.020
固体火箭发动机推压力信号光滑降噪模型
A Smooth Denoising Model for Thrust and Pressure Signal of Solid Rocket Engines
摘要
Abstract
In order to solve the problem of noise interference to the thrust and pressure signal of solid rocket engines(SRE)in ground static test,a signal smooth denoising model based on variational mode decomposition(VMD)was pro-posed.Firstly,the original signal was decomposed into a series of relatively stable band-limited intrinsic mode functions(BIMF)by VMD.Then,the signal after denoising was obtained by eliminating the high-frequency components which were judged by the amplitude spectrum.Finally,this method was verified by measured actual thrust and pressure signal of SRE.It is concluded that the proposed method can effectively remove the high-frequency noise and improve the smoothness of the signal,which is conducive to the subsequent data processing and analysis.关键词
声学/固体火箭发动机/地面静止试验/变分模态分解/光滑降噪模型Key words
acoustics/solid rocket engine/ground static test/variational mode decomposition/smooth denoising model分类
航空航天引用本文复制引用
邓泽奇,吴佳佳,王飞,钱鸣,朱利勤..固体火箭发动机推压力信号光滑降噪模型[J].噪声与振动控制,2025,45(3):127-131,157,6.基金项目
国防基础科研资助项目(JCKY2021203B068) （JCKY2021203B068）
