南黄海辐射沙脊群海域GPS-PPK海测方案应用分析
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摘要
为解决南黄海辐射沙脊群海域独特地理、水文条件下水深测量的现实困难,提高测量精度,本文将GPS动态后处理技术(GPS-PPK)运用于该海域的水下地形测量工作中。GPS-PPK技术具有控制距离远、无需实时数据传输的优点,是船载一体化水深测量时三维精确定位的理想选择。本文在数据结构、GPS-PPK信号频谱定量分析的基础上,提出了GPS-PPK截频滤波及数据匹配方案,使其适用于该海区水深测量并进一步提高测量精度。实验表明,整套方案操作便捷、有效可靠,测量精度较传统验潮方案更高。同时,远距离无验潮测量,节省了大量人力物力,非常值得在广阔的南黄海辐射沙脊群海域浅水环境下推广使用。
In order to solve the practical survey problems at the unique geographical and hydrological area,improve the survey accuracy.In this paper,the GPS post processing kinetic technology(GPS-PPK)was used in the bathymetric survey in radial sand ridges of the South Yellow Sea.GPS-PPK technology has the advantages of far distance control,no real-time data transmission.It is the ideal choice for three-dimensional accurate positioning when using shipborne bathymetric system.In this paper,based on the data structure and GPS-PPK spectrum analysis,we put forward the GPS-PPK filtering and data matching methods,it can be applied to the bathymetric survey at this area and further improve the survey accuracy.Experiments show that the whole method is convenient,effective and reliable,the survey accuracy is higher than the tide correction method.At the same time,long distance non-tide bathymetric survey method,saving a lot of manpower and material resources,Its well worth spreading in this shallow water area.
In order to solve the practical survey problems at the unique geographical and hydrological area,improve the survey accuracy.In this paper,the GPS post processing kinetic technology(GPS-PPK)was used in the bathymetric survey in radial sand ridges of the South Yellow Sea.GPS-PPK technology has the advantages of far distance control,no real-time data transmission.It is the ideal choice for three-dimensional accurate positioning when using shipborne bathymetric system.In this paper,based on the data structure and GPS-PPK spectrum analysis,we put forward the GPS-PPK filtering and data matching methods,it can be applied to the bathymetric survey at this area and further improve the survey accuracy.Experiments show that the whole method is convenient,effective and reliable,the survey accuracy is higher than the tide correction method.At the same time,long distance non-tide bathymetric survey method,saving a lot of manpower and material resources,Its well worth spreading in this shallow water area.
引文
[1]王颖.黄海陆架辐射沙脊群[M].北京:中国环境科学出版社,2002.
[2]谢荣安.GPS RTK技术在海洋测绘中的应用[J].地理空间信息,2007,5(4):16-19.
[3]桑金.GPS-PPK技术在港口航道测量领域的应用研究[C].中国航海学会.中国航海学会航标专业委员会测绘学组学术研讨会学术交流论文集.北京,2008:35-38.
[4]周丰年,周才扬.水下地形测量中动态差分GPS测定船体姿态的实验研究[J].现代测绘,2000,23(2):21-23.
[5]刘紫平,余代俊,惠海鹏.几款商用GPS数据处理软件基线解算结果比较分析[J].矿山测量,2011(1):18-20.
[6]张锦文,杜碧兰.中国黄海沿岸潮差的显著增大趋势[J].海洋通报,2000,19(1):1-9.
[7]董江,王胜平.GPS PPK远距离在航潮位测量及其在航道的实现[J].测绘通报,2008(5):51-53.
[8]李钟慎.基于MATLAB设计巴特沃斯低通滤波器[J].信息技术,2003,27(3):49-50.
[2]谢荣安.GPS RTK技术在海洋测绘中的应用[J].地理空间信息,2007,5(4):16-19.
[3]桑金.GPS-PPK技术在港口航道测量领域的应用研究[C].中国航海学会.中国航海学会航标专业委员会测绘学组学术研讨会学术交流论文集.北京,2008:35-38.
[4]周丰年,周才扬.水下地形测量中动态差分GPS测定船体姿态的实验研究[J].现代测绘,2000,23(2):21-23.
[5]刘紫平,余代俊,惠海鹏.几款商用GPS数据处理软件基线解算结果比较分析[J].矿山测量,2011(1):18-20.
[6]张锦文,杜碧兰.中国黄海沿岸潮差的显著增大趋势[J].海洋通报,2000,19(1):1-9.
[7]董江,王胜平.GPS PPK远距离在航潮位测量及其在航道的实现[J].测绘通报,2008(5):51-53.
[8]李钟慎.基于MATLAB设计巴特沃斯低通滤波器[J].信息技术,2003,27(3):49-50.