摘要
利用拉赫马宁海浪谱的有理函数形式在谱的峰值、峰值频率和总能量三个方面对工程上广为应用的Pierson-Moskowitz海浪谱进行了有理化逼近,给出了一个较为理想的有理海浪谱,并利用该有理谱构造了成型滤波器.结果表明:本文给出的有理海浪谱是一个非常理想的海浪谱,它为海浪的模拟与船舶控制工程领域海浪为有色干扰的变换问题均带来了极大的方便.
A satisfactory rational sea wave spectra is given by means of Pierson-Moskowitz sea wave spectra in this paper, and sharping filter is made of it.The results show that a rational sea wave spectrum given in this paper is a very satisfactory sea wave spectra, the simulation for sea wave and the design for ship control system can be carried out coveniently with it.
关键词
海浪谱
谱峰值
峰值频率
模拟
sea wave spectra
maximum of spectra
frequency for maxmum of spectra
sharping filter
simulation
