| OTF方法及其在GPS辅助航空摄影测量数据处理中的应用 |
| |
| 引用本文： | 陈小明,刘基余.OTF方法及其在GPS辅助航空摄影测量数据处理中的应用[J].测绘学报,1997,26(2):101-108. |
| |
| 作者姓名： | 陈小明 刘基余 |
| |
| 作者单位： | 武汉测绘科技大学 |
| |
| 摘 要： | 本文提出了一种基于伪距，载波相位双差卡尔曼滤波的ＯＴＦ方法，并成功地用它处理１９９６年５月在北京进行的ＧＰＳ辅助航空摄影测量动态定位数据。数据处理的结果表明，这种方法对于距离远达５０ｋｍ，高差大于２４００ｍ的ＤＧＰＳ测量能够迅速，有效地解算出正确的整周模糊度，在固定整周模糊度后可提供优于１ｄｍ的差分定位精度。此外，本文还提出了３种检验ＯＴＦ解算可靠性的方法。
|
| 关 键 词： | OTF法 GPS 航空摄影测量 数据处理 |
OTF METHOD AND ITS PRACTICE ON AIRBORNE GPS DATA PROCESSING FOR PHOTOGRAMMETRY |
| |
| Chen Xiaoming,Liu Jiyu,Li Deren.OTF METHOD AND ITS PRACTICE ON AIRBORNE GPS DATA PROCESSING FOR PHOTOGRAMMETRY[J].Acta Geodaetica et Cartographica Sinica,1997,26(2):101-108. |
| |
| Authors: | Chen Xiaoming Liu Jiyu Li Deren |
| |
| Abstract: | This paper proposes a new OTF (Ambiguity Resolution On the Fly) method based on double difference Pseudorange, carrier phase Kalman filter. With this method, the author has succeeded in processing the airborne GPS kinematic data of the Beijing GPS aided photogrammtry project. Results show that this method is capable of rapid and efficiency resolving for carrier phase ambiguities for the case of long distance as 50 km and altitude difference of 2400 meters. After complete fixing ambiguity, differential positioning accuracy better than one decimeter can be obtained. In addition, this paper also executes three evaluations for the reliability of OTF solution. |
| |
| Keywords: | GPS OTF Ambiguity Kalman Filter |
| 本文献已被 CNKI 维普 等数据库收录！ |
