GNSS浮标导出多普勒速度测波应用研究  

Wave measurement using GNSS buoy based on out Doppler velocity

作　　者：刘会[1] 马鑫程[2] 辛明真 张尧禹[2] 王晓明 阳凡林[1,3] LIU Hui;MA Xincheng;XIN Mingzhen;ZHANG Yaoyu;WANG Xiaoming;YANG Fanlin(College of Geomatics,Shandong University of Science and Technology,Qingdao,Shandong 266590,China;CCCC Highway Consultant Co.,Ltd.,Beijing 100088,China;Key Laboratory of Surveying and Mapping Technology on Island and Reef,National Administration of Surveying,Mapping and Geoinformation,Qingdao,Shandong 266590,China)

机构地区：[1]山东科技大学测绘科学与工程学院,山东青岛266590 [2]中交公路规划设计院有限公司,北京100088 [3]自然资源部海岛(礁)测绘技术重点实验室,山东青岛266590

出　　处：《山东科技大学学报（自然科学版）》2020年第2期36-43,共8页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：国家重点研发计划项目(2016YFB0501705,2018YFF0212203,2017YFC1405006,2016YFC1401210);山东省重点研发计划项目(2018GHY115002)

摘　　要：高精度的GNSS位置或速度是利用GNSS浮标研究海浪运动规律的关键。基于不同测速模型,GNSS浮标单站原始多普勒、单站导出多普勒速度和PPK载波位置差分速度精度展开对比分析;在此基础上对速度进行积分,提取波面位移,进行功率谱分析得到表面波浪的波高和周期。通过海上数据实测发现,单站导出多普勒相比于单站原始多普勒测速精度更高,以位置差分实测波面位移为参考,单站导出多普勒更能满足波浪观测的精度要求。该方法仅需一台GNSS接收机,不需要架设岸边基站,为GNSS浮标深远海观测应用提供一定的参考。High precision GNSS position or velocity is the key to the study of wave motion with GNSS buoys.Based on different velocity measurement models,a comparative analysis was achieved between the raw Doppler velocity and out Doppler velocity of GNSS single station and the differential velocity of PPK.Then,by integrating the velocity,the wave displacement was extracted and by using power spectrum analysis,the height and period of the surface wave were obtained.The measured data of the sea experiment shows that the out Doppler of a single station has a higher accuracy than the raw Doppler measured from a single buoy.Taking the wave surface displacement measured by the PPK as a reference,the out Doppler of a single station has a higher velocity measurement compared with that of the raw Doppler.With reference to the measured surface displacement of position differentials,the out Doppler can better meet the requirements for precision.Requiring only a GNSS receiver without the need to set up a base station on the shore,the proposed method provides certain reference for the application of GNSS buoy in the high-seas.

关 键 词：GNSS浮标 多普勒 导出多普勒 单点测速 功率谱分析 测波 

分 类 号：P229[天文地球—大地测量学与测量工程]