Parameter Analysis and Experimental Investigations on Cylindrical Broadband Acoustic Holography

Broadband acoustic holography based on intensity measurement (BAHIM) is a new technique for the reconstruction of sources. In BAHIM method, the acoustic intensity vector and potential energy density, which are both quadratic quantities, on the measurement surface are used to obtain the pressure phase. The principle of the cylindrical BAHIM theory is presented. In addition, the numerical simulations have been conducted. The influences of the change of parameters are discussed in detail. At last, the validity of BAHIM method and the correctness of parameter analysis are assessed by underwater near-field acoustic holography experiments. The experimental results show the merits of the underwater cylindrical BAHIM in the reconstruction of sound field, identification and localization of the noise sources.