噪声与振动控制2025，Vol.45Issue(3)：290-296,7.DOI:10.3969/j.issn.1006-1355.2025.03.046
某MEO导航卫星噪声试验欠试验分析与验证
Acoustic Under-testing Analysis and Verification for an MEO Navigation Satellite
摘要
Abstract
The sound pressure level(SPL)of an MEO Navigation Satellite fails to achieve the required spectrum of acoustic test.In order to resolve the issue,the operation principle of the acoustic test system and its impact on the sound spec-trum control were carefully examined,and a fault tree was established to pinpoint the test issue,and theoretical analysis and experimental investigation methods were used to locate experimental problems.In order to avoid similar under-testing prob-lems of other networked satellites,theoretical analysis was combined with 1:1 structural satellite testing and debugging,and three improvement measures,such as adjusting the sound source system equipment configuration,optimizing the sound spec-trum test parameters,and setting some monitoring sound sensors,were proposed.Finally,on this basis,the acoustic tests of the subsequent satellites were successfully completed.The improvement measures also provide some references for other acoustic tests,and reduce the risk of under-testing and over-testing.关键词
声学/MEO导航卫星/噪声试验/试验系统/欠试验/声谱控制Key words
acoustics/MEO Satellite/acoustic test/test system/under-testing/sound spectrum control分类
航空航天引用本文复制引用
田艳,林宝军,蒋桂忠,沈苑,陈志峰,沈怿闻..某MEO导航卫星噪声试验欠试验分析与验证[J].噪声与振动控制,2025,45(3):290-296,7.基金项目
中国第二代卫星导航系统重大专项资助项目(GFZX15***) （GFZX15***）
