%0 Journal Article
%T Research on localization of the source of cyclostationary sound field<br>循环平稳声场的声源定位研究
%A Chen Zhi-Min
%A Zhu Hai-Chao
%A Mao Rong-Fu
%A <br>陈志敏
%A 朱海潮
%A 毛荣富
%J 物理学报
%D 2011
%I 
%X The conventional planar near-field acoustic holography technology cannot exactly refecact the modulation characteristics of cyclostationary sound field radiated from the rotating machineries,and the spurious energy distribution of sidebands exists in its hologram. When the cyclic spectral density (CSD), instead of the energy spectrum of sound pressure is adopted as a reconstructed physical quantity, the modulating wave and carrier wave components of the cyclostationary sound field can be extracted exactly. Focusing on the complicated nature of calculation and the accuracy of feature extracting, the CSD gathering slice method is proposed, and the effect of the additive white noise on the reconstruction is analyzed. The results of the simulation and experiments show that the method has the better anti-noise performance and sound source can be localized exactly.
%K cyclostationary sound field
%K near-field acoustic holography
%K noise source localization<br>循环平稳声场
%K 近场声全息
%K 噪声源定位
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=F437B1BF01E7F4867D95265DBFD1AAAB&yid=9377ED8094509821&vid=BFE7933E5EEA150D&iid=F3090AE9B60B7ED1&sid=85BBC03F0EC6944C&eid=A6683C8C0EB9BCA7&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=10