重力卫星时变重力场位系数误差的反向延拓去相关算法
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摘要
由于重力场恢复与气候实验(gravity recovery and climate experiment,GRACE)时变重力场的高阶项误差导致反演结果中出现明显的条带误差,必须对其进行去相关处理。传统去相关算法采用滑动窗多项式拟合方法,但其存在着位于两端的数据无法处理的缺点,采用反向延拓技术对传统算法进行改进,提高数据的处理率和精确性。最后将改进前后的去相关处理结果进行比较,验证算法的有效性和可靠性。
Since the high-order error has exist in gravity recovery and climate experiment( GRACE) time-variable field,it lead to obvious strip error in the inversion results. So this error must be dealt with by using correlation algorithm. The traditional correlation algorithm adopts sliding polynomial fitting method,while its disadvantage is that the portion data isn't processed which located at both ends. The reverse continuation technology is used to improve the traditional algorithm to improve the processing rate and accuracy. Finally,the results of the de-correlation algorithm before and after the improvement are compared to verify the effectiveness and reliability of the proposed algorithm.
Since the high-order error has exist in gravity recovery and climate experiment( GRACE) time-variable field,it lead to obvious strip error in the inversion results. So this error must be dealt with by using correlation algorithm. The traditional correlation algorithm adopts sliding polynomial fitting method,while its disadvantage is that the portion data isn't processed which located at both ends. The reverse continuation technology is used to improve the traditional algorithm to improve the processing rate and accuracy. Finally,the results of the de-correlation algorithm before and after the improvement are compared to verify the effectiveness and reliability of the proposed algorithm.
引文
1宁津生．卫星重力探测技术与地球重力场研究[J]．大地测量与地球动力学，2002,22(1):1-5Ning Jinsheng. The satellite gravity surveying technology and research of Earth's gravity field[J]. Journal of Geodesy and Geodynamics,2002,22(1):1-5
2 Taplet B D,Bettadpur S,Riesj C,et al. GRACE measurements of mass variability in the Earth system[J]. Science, 2004, 305(5683):503-505
3 Velicogna I,Wahr J. Measurements of time-variable gravity show mass loss in Antarctica[J]. Science,2006,311(5768):1745-1756
4 崔立鲁，朱贵发．冰后回弹对南极地区冰盖质量变化影响的研究[J]．科技技术与工程，2015,15(28):107-111Cui Lilu,Zhu Guifa. The research on the effects of ice rebound for the quality change of antarctic ice caps[J]. Science Technology and Engineering,2015,15(28):107-111
5 Swenson S,Wahr J. Post-processing removal of correlated errors in GRACE data[J]. Geophysical Research Letters,2006,33:L08402
6 詹金刚，王勇，史红岭，等．应用平滑先验信息方法移除GRACE数据中相关误差[J]．地球物理学报，2015,58(4):1135-1144Zhan Jinggang,Wang Yong,Shi Hongling,et al. Removing correlation errors in GRACE data by the smoothness priors method[J]. Chinese Journal of Geophysics,2015,58(4):1135-1144
7 鞠晓蕾，沈云中，陈秋杰．GRACE时变重力场条带误差的加权平均去相关滤波方法[J]．大地测量与地球动力学，2016,36(2):129-132Ju Xiaolei, Shen Yunzhong, Chen Qiujie. Analysis on GRACE gravity data based on a simple weighted average de-correlation filter[J]. Journal of Geodesy and Geodynamics,2016,36(2):129-132
8 罗志才，李琼，钟波．利用GRACE时变重力场反演黑河流域水储量变化[J]．测绘学报，2012,41(5):676-681Luo Zhicai,Li Qiong,Zhong Bo. Water storage variations in Heihe river basin recovered from GRACE temporal gravity field[J]. Acta Geodaetica et Cartographica Sinica,2012,41(5):676-681
9 胡小工，陈剑利，周永宏，等．利用GRACE空间重力测量监测长江流域水储量的季节性变化[J]．中国科学(D辑)，2006,36(3):225-232Hu Xiaogong,Chen Jianli,Zhou Yonghong,et al. Seasonal water storage change of Yangtze River basin detected by GRACE[J]. Science in China(Series D),2006,36(3):225-232
10 崔立鲁，朱贵发．利用重力卫星数据恢复地球质量迁移方法的研究[J]．科学技术与工程，2015,15(14):106-109Cui Lilu,Zhu Guifa. The research on using the method to restore Earth's mass migration based on gravity satellite data[J]. Science Technology and Engineering,2015,15(14):106-109
11 李琼．地表物质迁移的时变重力场反演方法及其应用研究[D]．武汉:武汉大学，2014Li Qiong. Earth's surface mass transport recovered from temporal gravity field and its application[D]. Wuhan:Wuhan University,2014
12 詹金刚，王勇，郝晓光．GRACE时变重力场位系数误差的改进去相关算法[J]．测绘学报，2011,40(4):442-446,453Zhan Jingang,Wang Yong,Hao Xiaoguang. Improved method for removal of correlated errors in GRACE data[J]. Acta Geodaetica et Cartographica Sinica,40(4):442-446,453
13 Wang X L,Luo Z C,Zhong B,et al. Separation and recovery of geophysical signals based on the Kalman filter with GRACE gravity data[J]. Remote Sensing,2019,11(4):393
14 Yao C L,Luo Z C,Wang H H,et al. GRACE-derived terrestrial water storage changes in the inter-basin region and its possible influencing factor:A case study of the Sichuan Basin,China[J]. Remote Sensing,2016,8(6):444
15 崔立鲁，高先明，邹正波，等．顾及系数矩阵中误差项的三维坐标转换参数总体最小二乘迭代算法[J]．科学技术与工程，2019,19(3):1-5Cui Lilu,Gao Xianming,Zou Zhengbo,et al. The total leastsquares iterative algorithm for three-dimensional coordinate transformation parameters based on the error in the coefficient matix[J].Science Technology and Engineering,2019,19(3):1-5
16 崔立鲁，肖亚鹏，邹正波，等．相位电离层残差二阶差分辅助伪距相位组合北斗周跳探测与修复[J]．科学技术与工程，2019,19(9):15-21Cui Lilu,Xiao Yapeng,Zou Zhengbo,et al. Detection and repair of beidou cycle slip based on pseudo-phase combination and second-order time-difference phase ionospheric residual[J]. Science Technology and Engineering,2019,19(9):15-21
17 崔立鲁，张涌，安家春．超宽巷组合辅助电离层残差法北斗周跳探测与修复[J]．科学技术与工程，2018,18(15):1-5Cui Lilu,Zhang Yong,An Jiachun. Detection and repair of BDS based on ionosphere residual method combined with ultra-wide lane carrier[J]. Science Technology and Engineering,2018,18(15):1-5
18 崔立鲁，杜石．北斗三频无几何相位组合实时周跳探测与修复[J]．科学技术与工程，2018,18(29):7-12Cui Lilu,Du Shi. The real-time detection and repair of beidou triple-frequency cycle slip based on Geometry-free phase combination[J]. Science Technology and Engineering,2018,18(29):7-12
2 Taplet B D,Bettadpur S,Riesj C,et al. GRACE measurements of mass variability in the Earth system[J]. Science, 2004, 305(5683):503-505
3 Velicogna I,Wahr J. Measurements of time-variable gravity show mass loss in Antarctica[J]. Science,2006,311(5768):1745-1756
4 崔立鲁，朱贵发．冰后回弹对南极地区冰盖质量变化影响的研究[J]．科技技术与工程，2015,15(28):107-111Cui Lilu,Zhu Guifa. The research on the effects of ice rebound for the quality change of antarctic ice caps[J]. Science Technology and Engineering,2015,15(28):107-111
5 Swenson S,Wahr J. Post-processing removal of correlated errors in GRACE data[J]. Geophysical Research Letters,2006,33:L08402
6 詹金刚，王勇，史红岭，等．应用平滑先验信息方法移除GRACE数据中相关误差[J]．地球物理学报，2015,58(4):1135-1144Zhan Jinggang,Wang Yong,Shi Hongling,et al. Removing correlation errors in GRACE data by the smoothness priors method[J]. Chinese Journal of Geophysics,2015,58(4):1135-1144
7 鞠晓蕾，沈云中，陈秋杰．GRACE时变重力场条带误差的加权平均去相关滤波方法[J]．大地测量与地球动力学，2016,36(2):129-132Ju Xiaolei, Shen Yunzhong, Chen Qiujie. Analysis on GRACE gravity data based on a simple weighted average de-correlation filter[J]. Journal of Geodesy and Geodynamics,2016,36(2):129-132
8 罗志才，李琼，钟波．利用GRACE时变重力场反演黑河流域水储量变化[J]．测绘学报，2012,41(5):676-681Luo Zhicai,Li Qiong,Zhong Bo. Water storage variations in Heihe river basin recovered from GRACE temporal gravity field[J]. Acta Geodaetica et Cartographica Sinica,2012,41(5):676-681
9 胡小工，陈剑利，周永宏，等．利用GRACE空间重力测量监测长江流域水储量的季节性变化[J]．中国科学(D辑)，2006,36(3):225-232Hu Xiaogong,Chen Jianli,Zhou Yonghong,et al. Seasonal water storage change of Yangtze River basin detected by GRACE[J]. Science in China(Series D),2006,36(3):225-232
10 崔立鲁，朱贵发．利用重力卫星数据恢复地球质量迁移方法的研究[J]．科学技术与工程，2015,15(14):106-109Cui Lilu,Zhu Guifa. The research on using the method to restore Earth's mass migration based on gravity satellite data[J]. Science Technology and Engineering,2015,15(14):106-109
11 李琼．地表物质迁移的时变重力场反演方法及其应用研究[D]．武汉:武汉大学，2014Li Qiong. Earth's surface mass transport recovered from temporal gravity field and its application[D]. Wuhan:Wuhan University,2014
12 詹金刚，王勇，郝晓光．GRACE时变重力场位系数误差的改进去相关算法[J]．测绘学报，2011,40(4):442-446,453Zhan Jingang,Wang Yong,Hao Xiaoguang. Improved method for removal of correlated errors in GRACE data[J]. Acta Geodaetica et Cartographica Sinica,40(4):442-446,453
13 Wang X L,Luo Z C,Zhong B,et al. Separation and recovery of geophysical signals based on the Kalman filter with GRACE gravity data[J]. Remote Sensing,2019,11(4):393
14 Yao C L,Luo Z C,Wang H H,et al. GRACE-derived terrestrial water storage changes in the inter-basin region and its possible influencing factor:A case study of the Sichuan Basin,China[J]. Remote Sensing,2016,8(6):444
15 崔立鲁，高先明，邹正波，等．顾及系数矩阵中误差项的三维坐标转换参数总体最小二乘迭代算法[J]．科学技术与工程，2019,19(3):1-5Cui Lilu,Gao Xianming,Zou Zhengbo,et al. The total leastsquares iterative algorithm for three-dimensional coordinate transformation parameters based on the error in the coefficient matix[J].Science Technology and Engineering,2019,19(3):1-5
16 崔立鲁，肖亚鹏，邹正波，等．相位电离层残差二阶差分辅助伪距相位组合北斗周跳探测与修复[J]．科学技术与工程，2019,19(9):15-21Cui Lilu,Xiao Yapeng,Zou Zhengbo,et al. Detection and repair of beidou cycle slip based on pseudo-phase combination and second-order time-difference phase ionospheric residual[J]. Science Technology and Engineering,2019,19(9):15-21
17 崔立鲁，张涌，安家春．超宽巷组合辅助电离层残差法北斗周跳探测与修复[J]．科学技术与工程，2018,18(15):1-5Cui Lilu,Zhang Yong,An Jiachun. Detection and repair of BDS based on ionosphere residual method combined with ultra-wide lane carrier[J]. Science Technology and Engineering,2018,18(15):1-5
18 崔立鲁，杜石．北斗三频无几何相位组合实时周跳探测与修复[J]．科学技术与工程，2018,18(29):7-12Cui Lilu,Du Shi. The real-time detection and repair of beidou triple-frequency cycle slip based on Geometry-free phase combination[J]. Science Technology and Engineering,2018,18(29):7-12
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