|
- 2017
精密单点确定航空重力载体运动速度和加速度
|
Abstract:
载体运动速度和加速度的精确确定是航空重力中的关键问题之一。基于IGS发布的精密轨道和钟差产品,并对各种相关误差精确模型化,利用载波相位直接法计算速度和加速度。在静态条件下,水平方向的速度精度优于1.5 mm/s,加速度精度优于2.0 mm/s2;垂直方向的速度精度约为2.0 mm/s,加速度精度约为2.5 mm/s2。在动态条件下,与多参考站载波相位直接法精度相当,并且计算效率和解算成功率更高。结果表明了本文方法在航空重力中的有效性
[1] | Zhang Kaidong. Research on the Method of Airborne Gravimetry Based on SINS/DGPS[D]. Changsha: National University of Defense Technology, 2007(张开东. 基于SINS/DGPS的航空重力测量方法研究[D]. 长沙: 国防科技大学, 2007) |
[2] | Jekeli C. On the Computation of Vehicle Accelerations Using GPS Phase Accelerations[C].The International Symposium on Kinematic Systems in Geodesy, Geomatics and Navigation (KIS94), Banff, Canada, 1994 |
[3] | Bruton A M. Improving the Accuracy and Resolution of SINS/DGPS Airborne Gravimetry[D]. Calgary: The University of Calgary, 2000 |
[4] | Salazar D, Hernandez-Pajares M, Juan J, et al. EVA: GPS-based Extended Velocity and Acceleration Determination[J]. <em>Journal of Geodesy</em>, 2011, 85(12): 329-340 |
[5] | Wang Fuhong, Zhang Xiaohong, Huang Jinsong. Error Analysis and Accuracy Assessment of GPS Absolute Velocity Determination with SA off[J]. <em>Geomatics and Information Science of Wuhan University</em>, 2007, 32(6):515-519(王甫红, 张小红, 黄劲松. GPS单点测速的误差分析及精度评价[J]. 武汉大学学报·信息科学版, 2007, 32(6): 515-519) |
[6] | Bruton A M, Glennie C L, Schwarz K P. Differentiation for High-percision GPS Velocity and Acceleration Determination[J]. <em>GPS Solutions</em>, 1999, 2(4): 7-21 |
[7] | Kennedy S. Acceleration Estimation from GPS Carrier Phases for Airborne Gravimetry[D]. Calgary: The University of Calgary, 2002 |
[8] | Salazar D, Hernandez-Pajares M, Juan J, et al. Network-based High Accuracy Positioning with the GPSTk[C]. The 5th ESA Workshop on Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing (NAVI TEC' 2010), Noordwijk, Netherlands, 2010 |
[9] | Zhang Jianjun. Precise Velocity and Acceleration Determination Using a Standalone GPS Receiver in Real Time[D]. Melbourne: Royal Melbourne Institute of Technology, 2007 |
[10] | Kouba J.A Guide to Using International GNSS Service (IGS) Products[OL]. http//igscb.jpl.nasa.gov/igscb/resource/pubs/UsingIGSProductsVer21.pdf, 2011 |
[11] | Jekeli C, Garcia R. GPS Phase Accelerations for Moving-base Vector Gravimetry[J].<em>Journal of Geodesy</em>, 1997, 71(10): 630-639 |
[12] | Xiao Yun, Xia Zheren. Determination of Moving-Base Acceleration in Airborne Gravimetry[J]. <em>Chinese Journal of Geophysics</em>, 2003, 46(1): 62-67(肖云, 夏哲仁. 航空重力测量中载体运动加速度的确定[J]. 地球物理学报, 2003, 46(1): 62-67) |