| 双星串飞编队卫星测高模式下高度计相对定标 |
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| 引用本文： | 管斌,孙中苗,刘晓刚,翟振和.双星串飞编队卫星测高模式下高度计相对定标[J].测绘学报,2017,46(1):44-52. |
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| 作者姓名： | 管斌 孙中苗 刘晓刚 翟振和 |
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| 作者单位： | 1. 信息工程大学地理空间信息学院, 河南 郑州 450052;2. 地理信息工程国家重点实验室, 陕西 西安 710054;3. 西安测绘研究所, 陕西 西安 710054;4. 信息工程大学军事测绘导航工程军队重点实验室, 河南 郑州 450052 |
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| 基金项目： | 国家自然科学基金，军事测绘导航工程军队重点实验室开放基金The National Natural Science Foundation of China，Open Foundation of Military Key Laboratory of Surveying |
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| 摘 要： | 提出了一种新型双星串飞编队卫星测高模式下高度计之间的相对定标方法,给出了计算高度计相对偏差的完整公式;采用Jason-2卫星数据,对相对偏差计算公式中的各误差项进行了功率谱分析以及差分序列的统计分析;以厘米级定标精度为前提,简化了相对偏差计算公式并进行了误差预估。结果表明,相对偏差中各误差项均呈现低频特性,相对偏差误差主要与两颗卫星的相对径向轨道误差、测距误差、海况偏差及两星下比较点间的水准面高差相关,单次飞行高度计之间相对偏差的精度约为1.99cm。
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| 关 键 词： | 双星编队 卫星测高 相对定标 功率谱估计 海面高 |
| 收稿时间： | 2016-02-03 |
| 修稿时间： | 2016-10-25 |
Relative Calibration of Altimeters under Dual-satellite Formation Flying Altimetry Mode |
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| GUAN Bin,SUN Zhongmiao,LIU Xiaogang,ZHAI Zhenhe.Relative Calibration of Altimeters under Dual-satellite Formation Flying Altimetry Mode[J].Acta Geodaetica et Cartographica Sinica,2017,46(1):44-52. |
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| Authors: | GUAN Bin SUN Zhongmiao LIU Xiaogang ZHAI Zhenhe |
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| Institution: | 1. Institute of Geography Spatial Information, Information Engineering University, Zhengzhou 450052, China;2. State Key Laboratory of Geo-information Engineering, Xi'an 710054, China;3. Xi'an Research Institute of Surveying and Mapping, Xi'an 710054, China;4. Military Key Laboratory of Surveying, Mapping and Navigation of Engineering, Information Engineering University, Zhengzhou 450052, China |
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| Abstract: | A relative calibration method used in a novel dual-satellite formation flying altimetry mode is proposed,and a complete formula for calculating relative bias between altimeters is presented.Power spectrum analysis of each correction term in relative bias calculation formula and statistical analysis of differential sequences are respectively conducted with Jason-2 altimetry data.Under the premise that a centimeter level calibration accuracy is ensured,the formula is simplified and error budget is made.The results show that all correction items have low frequency characteristic,and the relative bias error is mainly related to the relative radial orbit error between two satellites,range error,sea state bias as well as the differential geoid height error between two comparison points.As for single overflight,the accuracy of relative bias between two altimeters is about 1.99 cm. |
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| Keywords: | dual-satellite formation satellite altimetry relative calibration power spectrum estimation sea surface height |
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