摘要
常规舰船电子系统谱密度分析函数的计算数据结果,在波浪冲击作用下具有明显的高离散性。对此提出了新的舰船电子系统谱密度函数分析方法,制定原始谱密度傅里叶计算框架,制定周期性函数,对舰船电子系统数据的时间序列进行零均值转换和标准化操作,预设截取长度进行数据截取,将截取处理后的数据带入到预设计算框架中,生成电子系统谱密度函数公式,获取分析结果实现波浪作用下舰船电子系统谱密度函数的计算分析。根据仿真实验的数据结果可以看出,相比较传统分布式函数分析方法,设计的函数分析方法所提取的数据回归性区间缩小了29%,平均方差缩减了33%,数据聚合度更高,有效降低了数据离散性。
The calculated data of spectral density analysis function of electronic system of conventional ship have obvious high dispersion under wave impact.Presented new ship design spectral density function of electronic system analysis method,make original Fourier spectrum density computing framework,make periodic function,electronic system for naval ship data transformation of time series with zero mean and standardized operation,the preset intercepting intercepting the data length,intercepts the processed data into a preset computing framework,generate spectral density function of electronic system formula,obtaining the results of the analysis implementation ships under wave spectral density function of electronic system calculation and analysis.According to the data results of the simulation experiment,compared with the traditional distributed function analysis method,the designed function analysis method can reduce the range of data regression by 29%and the average variance by 33%.The data aggregation degree is higher and the data dispersion is effectively reduced.
作者
杨美玲
安然
柴建伟
YANG Mei-ling;AN Ran;CHAI Jian-wei(Langfang Yanjing College of Vocational and Technical,Langfang 065200,China)
出处
《舰船科学技术》
北大核心
2019年第10期112-114,共3页
Ship Science and Technology
关键词
数据聚合
谱密度
电子系统
时间序列
data aggregation
spectral density
electronic systems
time series
