欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
推导了求解有理多项式系数（RPC）的严密误差方程,从分析误差方程设计矩阵列向量间的复共线性着手,提出了一种去相关的RPC参数优选方法。对一景SPOT-5 HRG 1A级影像进行实验,结果表明,当地面控制点稀疏时,通过优选20-30个RPC参数,可以很好地消除参数间的相关性,有效消除有理函数模型（RFM）在地形拟合中出现的振荡现象,可明显提高RPC参数求解和RFM的影像几何处理精度。当地面控制点足够多时,利用此方法优选的RPC参数进行地形拟合的结果与用常规最小二乘法求解的78个RPC参数实施地形拟合的结果完全一致。
英文摘要：
In the geometric processing of high-resolution satellite imagery,the general rational function model（RFM） consists of 78 rational polynomial coefficients（RPCs）,and the correlation between these coefficients will result in difficulties and accuracy degradation in solving the RPC.The rigorous error equations for solving the RPCs are derived,and an optimized method of selecting the RPCs by analyzing the multicollinearity between column vectors of the design matrix is proposed.A SPOT-5 HRG image in level 1A is selected and used.The empirical results have shown that selecting 20 to 30 RPCs could effectively eliminate the correlation between the coefficients,remove the oscillation in approximating the terrain by using the RFM,and obviously raise the solution accuracy of the RPCs and geometric processing accuracy based on the RFM with less ground control points（GCPs） available.When the GCPs are sufficient,the selected RPCs could acquire a consistent geometric accuracy in approximating the terrain with the 78 RPCs solved by the traditional least-squares method.
同期刊论文项目
同项目期刊论文
Removal of azimuth ambiguities and detection of a ship: using polarimetric airborne C-band SAR image
Unsupervised Classification of PolInSAR Data Based on Shannon Entropy Characterization With Iterativ
Fault rupture model of the 2008 Dangxiong (Tibet, China) Mw 6.3 earthquake from Envisat and ALOS dat
Assessment of correct fixing rate for precise point positioning ambiguity resolution on a global sca
A globally applicable, season-specific model for estimating the weighted mean temperature of the atm
Shortest path finding problem in stochastic time-dependent road networks with stochastic first-in-fi
Integrated point and edge matching on poor textural images constrained by self-adaptive triangulatio
Strain Rates in the Sichuan-Yunnan Region Based upon the Total Least Squares Heterogeneous Strain Mo
Flood detection and mapping of the Thailand Central plain using RADARSAT and MODIS under a sensor we
Transformation Method of Exterior Orientation Angular Elements Obtained via Position and Orientation
A virtual globe-based 3D visualization and interactive framework for public participation in urban p
A Two-step Displacement Correction Algorithm for Registration of Lidar Point Clouds and Aerial Image
Application and Analyses of Satellite-borne L-band Synthetic Aperture Radar Data in Coastal Environm
期刊信息
位置：