气动声源定位成像方法研究进展

Research Progress in Mapping of the Aeroacoustic Sources Method

气动噪声源定位成像技术在航空航天领域具有广泛的需求。本文对气动噪声源定位成像方法开展调研,介绍了常规波束形成、声反卷积、快速高分辨率波束形成等主要气动噪声源定位成像方法的研究进展,穿插介绍了不同方法在气动噪声检测中的应用案例,最后归纳了各类声源定位成像方法的特点和不足,并给出了气动声源定位成像方法在实际应用中的建议。

The demand of mapping of aeroacoustic sources is abroad in areas of aviation and aerospace.In this text the mapping of aeroacoustic sources methods are surveyed and the research progress in some widely used aeroacoustic sources imaging methods are introduced such as traditional beamforming,acoustic deconvolution and fast beam forming with high resolution.Some cases in measuring the aeroacoustic sources by those methods mentioned above are also shown through the text.In the final,the characteristic and disadvantage of each aeroacoustic sources imaging method introduced in this text is concluded and some advices for applying those methods in aeroacoustic measurement are offered at meanwhile.