GPS-PPK结合测深仪在水下地形测量中的应用  

Application of GPS-PPK Connecting Depth Sounder in Underwater Topographic Survey

作　　者：闫永辉[1,2] 徐建新[1] 吴文强[2] 彭文启[2] 

机构地区：[1]华北水利水电学院水利学院,河南郑州450011 [2]中国水利水电科学研究院水环境研究所,北京100038

出　　处：《人民黄河》2013年第5期128-130,共3页Yellow River

基　　金：国家自然科学基金资助项目(51279214);国家水体污染控制与治理科技重大专项(2012ZX07529-004)

摘　　要：GPS-RTK技术在水下地形测量中具有实时、快捷、方便和精确的特点,但是如果没有电台或网络信号支持,GPS-RTK技术就无法实施。通过"时间记录"确定测深仪与GPS-PPK两套独立系统测量数据的对应关系,组成"人工GPS-PPK测深系统",能够在无电台或网络信号的情况下,得到精度接近于GPS-RTK技术的测量结果。阐述了人工GPS-PPK测深系统的组成方法及其测量原理,并用实例说明该方法测量水下地形简单可行,精度可靠,效率较高,易于推广。In underwater topographic survey, the GPS-PPK technique possesses a number of features such as real time, speediness, convenience, accuracy and so on. However, if there is no radio or network signal, GPS-PPK technique does not work. Depth sounder and GPS-PPK constitute the Artificial Sounding System. The two sets of independent systems are connected by time. The Artificial Sounding System can measure accurately as GPS-RTK under no radio or network signals. The paper expounded the composing method and measuring principle of the Artificial Sounding Sys- tem. It explained that the method was simple and feasible, accurate and reliable, highly efficient and easy to be spread by examples of the applica- tion.

关 键 词：水下地形测量 GPS—PPK 测深仪 

分 类 号：TV221[水利工程—水工结构工程]