单浮标拖缆监测的水下GPS定位技术  

Underwater GPS technology based on single buoy towed cable monitoring

作　　者：席勇辉[1] 

机构地区：[1]昆明船舶设备研究试验中心,昆明650051

出　　处：《测绘科学》2016年第10期10-13,34,共5页Science of Surveying and Mapping

摘　　要：针对目前国内外水下GPS定位技术的应用特点,该文提出了一种基于单浮标拖缆监测的水下GPS定位技术。此技术包含GPS智能浮标、拖缆和监测系统3个主要部分。监测系统采集拖缆的形态数据传送到GPS智能浮标;浮标结合自身GPS坐标计算水下被跟踪目标位置。给出了定位计算的数学方法,即以拖缆监测数据为基础,利用三次样条插值原理求拖缆线型曲线方程,得到水下目标位置。对40m长拖缆实例进行了计算,验证了其理论可行性。此定位技术的主要特点是不受水域范围限制且具备一定的定位精度和可靠性。In the light of application characteristics of the underwater GPS technology at home and abroad currently, an underwater GPS technology was put forward based on single buoy towed cable monitoring. This technology contains three main parts including the GPS intelligent buoy, towed cable, and monitoring system. The morphological data that collected by the monitoring system were transformed to GPS intelligent buoy; targets were traced and located by the buoy combined with its own coordinates. Mathematical method of calculating for location was given, that is, based on the streamer monitoring data, the towing linear curve equation was got by using the cubic spline interpolation principle; and the underwater target location was found. A 40m long cable was calculated, which proved that the theory was feasible.

关 键 词：水下GPS 单浮标 拖缆 监测 插值 

分 类 号：P208[天文地球—地图制图学与地理信息工程]