摘要
波浪谱分析是研究随机波浪、构建波浪模型、计算海浪要素的主要方法,也是海洋工程设计、波浪能应用研究等的重要依据。目前对于现场波浪数据的获取仅局限于波浪特征参数和部分频段数据,为了获取准确有效的波浪谱信息,提出微机电系统(Micro-Electro-Mechanical System,MEMS)和全球定位系统(Global Positioning System,GPS)测波传感器相结合的波浪谱数据获取方法以及利用北斗短报文数据传输的通信方式。综合考虑波浪谱数据特点和北斗短报文通信能力,波浪谱数据选用半精度数据类型编码并设计了相应的数据传输格式。现场海试结果表明该方法对于全波谱数据计算和传输较为准确,有效波高、峰值周期、平均波向和方向扩展的准确率相比于单独GPS传感器计算结果分别提升了12.5%(0.1m)、5%(0.2s)、8%(13°)和13%(8°),为海浪观测资料获取提供了新方法和新思路,可以进一步满足海洋多要素研究和对完整频谱分析的实际应用需求。
Wave spectrum analysis is the main method for studying random waves,constructing wave models,and calculating wave elements,and it is also an important basis for marine engineering design and wave energy application research.The acquisition of wave data in the field is limited to wave characteristic parameters and some frequency band data,a wave spectrum data acquisition method combining MEMS and GPS wave measurement sensors,and a communication method using Beidou short message data transmission were proposed to obtain accurate and effective wave spectrum information.Considering the characteristics of wave spectrum data and the communication capability of Beidou short message,the wave spectrum data were encoded in semi-precision data type,and the corresponding data transmission format was designed.The results of the field trial show that the method is more accurate for the calculation and transmission of full wave spectrum data,and the accuracy of significant wave height,peak period,mean wave direction,and directional spread is 12.5%(0.1m),5%(0.2s),8%(13°),and 13%(8°)higher than those calculated by GPS sensor alone.This study provided a new method and new ideas for wave observation data acquisition and can further meet the needs of marine multi-element research and applications for complete spectrum analysis.
作者
张维星
党超群
张锁平
王斌
孙东波
周莹
邢霄波
ZHANG Wei-Xing;DANG Chao-Qun;ZHANG Suo-Ping;WANG Bin;SUN Dong-Bo;ZHOU Ying;XING Xiao-Bo(National Ocean Technology Center,Tianjin 300112,China;Key Laboratory of Ocean Observation Technology,MNR,Tianjin 300112,China)
出处
《海洋与湖沼》
CAS
CSCD
北大核心
2023年第3期645-652,共8页
Oceanologia Et Limnologia Sinica
基金
自然资源部海洋观测技术重点实验室定向研究基金项目,2022klootB01号
国家海洋技术中心科技创新基金,K5200Z004号。
关键词
测波传感器
波浪谱
波浪浮标
北斗短报文通信
数据传输
wave sensor
wave spectrum
wave buoy
Beidou short message communication
data transmission
