A Sound Field Separation and Reconstruction Technique Based on Reciprocity Theorem and Fourier Transform
Xiao-Lei Li1**, Ning Wang1, Da-Zhi Gao1, Qi Li2
1Department of Marine Technology, Ocean University of China, Qingdao 266100 2College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150006
Abstract：We show a method to separate the sound field radiated by a signal source from the sound field radiated by noise sources and to reconstruct the sound field radiated by the signal source. The proposed method is based on reciprocity theorem and the Fourier transform. Both the sound field and its gradient on a measurement surface are needed in the method. Evanescent waves are considered in the method, which ensures a high resolution reconstruction in the near field region of the signal source when evanescent waves can be measured. A simulation is given to verify the method and the influence of measurement noise on the method is discussed.
. [J]. 中国物理快报, 2018, 35(11): 114301-.
Xiao-Lei Li, Ning Wang, Da-Zhi Gao, Qi Li. A Sound Field Separation and Reconstruction Technique Based on Reciprocity Theorem and Fourier Transform. Chin. Phys. Lett., 2018, 35(11): 114301-.
2018, Vol. 35 
