| 航空矢量重力测量中科里奥利加速度对测速精度要求分析 |
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| 引用本文： | 王丽红,张传定. 航空矢量重力测量中科里奥利加速度对测速精度要求分析[J]. 海洋测绘, 2008, 28(2): 1-4 |
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| 作者姓名： | 王丽红 张传定 |
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| 作者单位： | 61365部队,天津,300142;解放军信息工程大学,测绘学院,河南,郑州,450052;解放军信息工程大学,测绘学院,河南,郑州,450052 |
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| 基金项目： | 全国优秀博士学位论文作者专项基金项目(200344) |
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| 摘 要： | 首先论述了航空矢量重力测量中科里奥利加速度的计算模型，给出了科里奥利加速度改正对水平、垂直速度要求的分析模型。数值表明，在低纬地区欲达到1mGal的科里奥利加速度的精度，要求速度的精度为5cm／s左右；依据实测数据，目前GPS测得的载体速度精度为0．3mm／s，完全能够满足航空矢量重力测量对科里奥利加速度改正的要求。
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| 关 键 词： | 航空矢量重力测量 科里奥利加速度 速度精度 |
| 文章编号： | 1671-3044(2008)02-0001-04 |
| 修稿时间： | 2007-11-02 |
Analysing the Accuracy of Measuring Velocity for the Airborne Vector Gravity Survey According to Coriolis Acceleration |
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| WANG Li-hong,ZHANG Chuan-ding. Analysing the Accuracy of Measuring Velocity for the Airborne Vector Gravity Survey According to Coriolis Acceleration[J]. Hydrographic Surveying and Charting, 2008, 28(2): 1-4 |
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| Authors: | WANG Li-hong ZHANG Chuan-ding |
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| Affiliation: | WANG Li-hong ,ZHANG Chuan-ding ( 1. Institute of Surveying and Mapping, Information Engineering University, Zhengzhou, Henan ,450052 ; 2.61365 Troops, Tianjin, 300142 ) |
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| Abstract: | This paper firstly discusses the calculation model of Coriolis acceleration for the airborne vector gravity survey,then discusses the analytical model of Coriolis acceleration correction for horizontal velocity and vertical velocity.The numerical value indicates that,if the accuracy of the Coriolis acceleration is 1mGal in the low latitude areas,the accuracy of the velocity are about 5cm/s.Then according to the practical data,the accuracy of the velocity calculated are 0.3mm/s,which absolutely satisfies the demand of the airborne vector gravity survey. |
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| Keywords: | airborne vector gravity survey Coriolis acceleration accuracy of velocity |
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