POS定位测姿的系统误差分析及补偿 |
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引用本文: | 李会娟,唐进进,巩现勇,任凤,赵启龙. POS定位测姿的系统误差分析及补偿[J]. 地理空间信息, 2012, 10(5): 11-13,16 |
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作者姓名: | 李会娟 唐进进 巩现勇 任凤 赵启龙 |
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作者单位: | 1. 中国地质大学信息工程学院,湖北武汉430074 广西空间信息与测绘重点实验室,广西桂林541004 2. 中国地质大学信息工程学院,湖北武汉,430074 3. 信息工程大学测绘学院,河南郑州,450052 |
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基金项目: | 国家测绘局航空摄影项目Ⅲ期(TC09AN01). |
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摘 要: | 在实验的基础上获取了航摄姿态角的分布范围,重点分析了POS系统辅助航空摄影测量时,姿态角的实时变化对外方位元素测定结果的影响以及采用飞行检校场法对其进行系统误差补偿的局限性;提出了采用附加参数法对系统误差进行改正,并将观测值的改正参数和观测值一起作为带权观测值参与平差计算的方法;并通过实例证明了该方法能达到理想的效果。
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关 键 词: | 姿态角 外方位元素 检校场 附加参数 平差 |
Analysis and Compensation of POS Positioning Error |
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Abstract: | With the study of POS attitude angle range in experiments,this paper pointed out that attitude angle's real-time changes seriously affect positioning accuracy.Existing solutions such as flight calibration field cannot compensate for system error.Accounting for the shortage,an additional parameter method was proposed to correct the system error,which was characterized that bundle block adjustment weighted utilizes both the POS determined positions and attitudes of aerial camera.It was verified by experiments that this approach could further avoid fundamental error as well as compensate for system error. |
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Keywords: | attitude angle elements of exterior orientation calibration field additional parameters adjustment |
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