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中文摘要：
为解决当前测量设备在估计海浪方向谱方面存在的易损坏、易丢失且费用昂贵等问题,利用船舶运动响应数据通过参数化方法对海浪方向谱进行估计,并提出粒子群优化算法对八参数海浪方向谱模型进行参数整定,该方法只需要简单的测量设备和硬件即可完成方向谱的估计工作.最后利用实船数学模型对2种海况情况进行了仿真验证,仿真结果表明该方法可以精确地估计出海浪方向谱.
英文摘要：
In order to solve the problems of high cost measuring equipment used to estimate directional wave spectrum,that are easily subjected to damage and loss,the directional wave spectrum estimation,which uses the data of ship motion responses to estimate wave spectra by combination of the parameterization approach,will be examined in this paper.Meanwhile,a parameter tuning method using the particle swarm optimization（PSO） algorithm for the 8-parameter model of the directional wave spectrum is presented.The method requires the use of a simple measuring instrument and hardware to accomplish the estimation of the directional wave spectrum.And next,two kinds of sea state conditions are simulated with the real ship model.The results confirm the validity of the proposed approach which allows for accurate estimation of the directional wave spectrum.
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