GPS浮标测高精度影响因素研究  

Influencing factors research of GPS buoy measurement precision

作　　者：闫龙浩[1] 陈春涛[1] 翟万林[1] 朱建华[1] 张倩[1] 张晓旭[1] 

机构地区：[1]国家海洋技术中心,天津300112

出　　处：《中国工程科学》2014年第6期102-108,共7页Strategic Study of CAE

基　　金：中科院合作项目"海洋高度计定标方法研究"Y2BZZ6AJ50;海洋公益性行业科研专项资助项目(201305032-3)

摘　　要：海洋二号(HY-2)卫星高度计已在轨运行两年多,亟需深入开展海面高度定标工作,基于全球定位系统(GPS)浮标的高度计海面高度定标法是主要的定标方法。GPS浮标定标法的定标精度受到时间窗口、浮标姿态、温盐以及相位中心等因素影响。为了提高高度计海面高度GPS定标法的定标精度,本文对影响GPS浮标测高精度的主要因素进行了分析研究。结果表明,在充分考虑影响因素基础上自主研制的GPS浮标高程测量精度可以达到1 cm,满足高度计海面高度定标要求。Satellite altimeter was widely used in ocean monitoring and research,in order to find out the actual performance of the altimeter and access the accuratesea level data,we need to calibration. GPS buoys was mainstream devices in altimeter absolute calibration. Through simulation and experiment about the self-developed GPS buoy,this paperstudied the precision of GPS bouy and factors affecting.The results show that the self-developed GPS GPS buoy elevation measurement precision can reach 1 cm,meet the altimeter sea surface height calibration requirements.

关 键 词：GPS浮标精度 影响因素 高度计定标 

分 类 号：P73[天文地球—海洋科学]