CAJ | 학술논문

海洋方向谱的研究对于海洋预报、海上建设等人类海洋活动有重要的意义。介绍了一种利用声学多普勒流速剖面仪(Acoustic Doppler Current Profiler, ADCP)测量海浪方向谱的方法。通过计算ADCP测量的流速之间的交叉谱，利用最大似然算法可以得到海浪的方向谱。给出了利用 ADCP 估计方向谱的算法流程，进行了仿真，结果表明所提出的方法可以较准确地估计海浪方向谱。
해양방향보적연구대우해양예보、해상건설등인류해양활동유중요적의의。개소료일충이용성학다보륵류속부면의(Acoustic Doppler Current Profiler, ADCP)측량해랑방향보적방법。통과계산ADCP측량적류속지간적교차보，이용최대사연산법가이득도해랑적방향보。급출료이용 ADCP 고계방향보적산법류정，진행료방진，결과표명소제출적방법가이교준학지고계해랑방향보。
Measurements of ocean directional spectrum have significant impact on marine forecasting, marine con-struction and other human maritime activities. A method of measuring the directional spectrum by using the Acoustic Doppler Current Profiler (ADCP) is presented in this paper. Calculating the cross spectrum between the wave hight and the current velocity measured by ADCP and using the maximum likelihood algorithm (MLM) can derive the ocean directianl spectrum. The flowchat of the algorithm and the simulation result with this method are given, which shows that the algorithm can rather correctly estimate the ocean directional spectrum.