CAJ | 학술논문

提简正波理论对计算海洋声场十分重要，本文利用镜像法推导了简正波方程，得到的结果与求解赫姆霍兹方程得到的结果一致，利用镜像法可以准确直观地理解简正波的物理意义。简正波是海洋界面反射波在海洋中发生干涉现象形成的，其原理和光栅衍射类似。简正波耦合的机理是海洋介质的不均匀性造成简正波产生附加相位变化，破坏了不同简正波之间的正交性。
제간정파이론대계산해양성장십분중요，본문이용경상법추도료간정파방정，득도적결과여구해혁모곽자방정득도적결과일치，이용경상법가이준학직관지리해간정파적물리의의。간정파시해양계면반사파재해양중발생간섭현상형성적，기원리화광책연사유사。간정파우합적궤리시해양개질적불균균성조성간정파산생부가상위변화，파배료불동간정파지간적정교성。
Normal mode methods have been used for many years in underwater acoustics .Normal mode equitation focusing on virtual image array theory agrees with the result by solving Helmholtz equation ,virtual image array theory if of direct view and accuracy in explaining normal mode equitation .The principle of normal mode wave is similar to that of grating diffraction .Normal mode wave coupling comes from the loss of normal mode orthogonality for additional phase difference that is caused by oceanic nonuniformity .