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Impacts of the Collocation Window on the Accuracy of Altimeter/Buoy Wind Speed Comparison ——A Simulation Study
Altimeter buoy wind speed collocation simulation
2014/12/30
The choice of space and time windows is often a puzzling task in the simultaneous comparison of satellite and in situ observations. In this study, numerical simulations are carried out to examine the ...
小步长低阶Collocation方法轨道积分性能研究
GPS星座 轨道积分 小步长低阶Collocation方法 蚀现象
2014/4/11
介绍了Collocation方法的原理及误差构成，以Collocation方法在逐历元滤波轨道解算中的应用为切入点对小步长低阶Collocation方法轨道积分的性能进行了研究。分别就二体问题及真实GPS星座卫星轨道为对象进行了一系列验算，得到了一些有益结论：就积分方法本身性能而言，Collocation积分方法较传统数值积分法精度要高且稳定性要好；在一定长度的积分步长范围内，将小步长低阶Coll...
ACCURACY ANALYSIS OF HRSI-BASED GEOPOSITIONING USING LEAST SQUARES COLLOCATION
Geopositioning QuickBird Imagery Rational Function Model Stochastic Model Variance Components Estimation Least Squares Collocation
2014/4/25
Rational function model with bias compensation has been widely used in geopositioning of High Resolution Satellite Imagery (HRSI). We studied the geopositioning issue using a pair of QuickBird imagery...