舰船电子工程Issue(10)：119-122,4.DOI:10.3969/j.issn1672-9730.2014.10.034
舰船辐射噪声线谱检测与分析磁
Detection and Analysis of Ship Radiated-noise Line Spectrum
单广超 1赵汉波2
作者信息
- 1. 海军陆战学院 广州 510430
- 2. 国防科技大学电子科学与工程学院 长沙 410073
- 折叠
摘要
Abstract
According to the respective characteristics of classical power spectrum and DEMON spectrum ,ship radiated-noise line spectrum is comprehensively analyzed .Based on periodogram algorithm ,the spectral estimation of ship radiated-noise is made .After separating line spectrum and continuum spectrum ,eliminating fasle alarm and censoring line spec-trumm ,characteristic line spectrum from the ship radiated-noise is effectivly extracted .Then ,the periodic modulation of ship radiated-noise is analyzed in order to obtain the ship invariant physical speciality ,such as ship propeller rotation ,propeller blade-number ,etc .In the end ,the comprehensive line spectrum characteristics of ship radiated-noise is obtained ,which has important reference value for ship recognition and controlling line spectrum radiated-noise .关键词
周期图谱法/DEM ON谱分析/船舶辐射噪声线谱Key words
periodogram algorithm/DEMON analysis/ship radiated-noise line spectrum引用本文复制引用
单广超,赵汉波..舰船辐射噪声线谱检测与分析磁[J].舰船电子工程,2014,(10):119-122,4.
