波浪作用下的舰船电子系统谱密度函数分析

Spectral density function analysis of ship electronic system under wave action

传统计算方法在对波浪作用下的舰船电子系统谱密度进行计算时准确度较低,为此进行波浪作用下的舰船电子系统谱密度函数分析。按照制定的电子系统谱密度函数计算方法设计流程图,使用FFT方法计算原理,对原始数据进行处理,对离散时间序列进行零均值转换,对子样标准差进行标准化,并在必要时对数据进行截断处理;将处理后的数据代入公式进行计算,实现波浪作用下的舰船电子系统谱密度函数计算方法设计。实验数据表明,设计的波浪作用下的舰船电子系统谱密度函数,比传统计算方法提高了25%的稳定性和75%的准确度,并具备极高的有效性。

The traditional calculation method is less accurate when calculating the spectral density of the ship electronic system under the action of wave, so the spectral density function of the ship electronic system under the action of wave is analyzed. According to the method of calculating the spectral density function of the electronic system, the flow chart is designed, the principle of FFT method is used to process the original data, the zero mean conversion is made to the discrete time series, the standard deviation of the sample is standardized, and the data is truncated when necessary; the processed data is replaced by the formula. The calculation method of spectral density function of ship electronic system under wave action is calculated. The experimental data show that the spectral density function of the ship electronic system under the action of the designed wave has improved 25% stability and 75% accuracy compared with the traditional method, and has high effectiveness.