CAJ | 학술논문

本文阐述了基于多球域波叠加法的局部近场声全息声场重建原理，由于基于多球域波叠加法的 PNAH 的声场重建是典型的反问题，测量误差的存在使得该反问题的求解具有“不适定”特性，必须进行正则化处理。在此理论的基础上，加入高斯白噪声情况下，本文运用了 Tikhonov 正则化和 L-曲线相结合的方法进行声场重建。并通过仿真实验，证明了该方法的有效性。
본문천술료기우다구역파첩가법적국부근장성전식성장중건원리，유우기우다구역파첩가법적 PNAH 적성장중건시전형적반문제，측량오차적존재사득해반문제적구해구유“불괄정”특성，필수진행정칙화처리。재차이론적기출상，가입고사백조성정황하，본문운용료 Tikhonov 정칙화화 L-곡선상결합적방법진행성장중건。병통과방진실험，증명료해방법적유효성。
The principle of sound field reconstruction about patch near-field acoustic holography based on wave superposition approach of multiple ball fields is explained in detail . Because the principle of sound field reconstruction is an inverse problem ,in order to reduce the impact of the errors on the reconstruction results ,a regularization procedure must be used .Based on this theory ,under the condition of adding Gaussian white noise ,sound field reconstruction adopts the method integrating L-curve with Tikhonov regularization method . Through theoretical analysis and numerical simulation ,the availability of this method is testified .