Design and Evaluation of a Semi-Empirical Piece-wise Exponential Atmospheric Density Model for CubeSat Applications

2015 ◽  
Author(s):  
Siddharth Kedare ◽  
Steve Ulrich
Keyword(s):  
Density Model ◽  
Atmospheric Density ◽  
Semi Empirical

scholarly journals Calibration of atmospheric density model based on Gaussian Processes

2020 ◽  
Vol 168 ◽  
pp. 273-281
Author(s):  
Tianyu Gao ◽  
Hao Peng ◽  
Xiaoli Bai
Keyword(s):  
Gaussian Processes ◽  
Density Model ◽  
Atmospheric Density ◽  
Model Based

Generalized Multiple-Model Adaptive Estimation for Mars Entry Navigation

2011 ◽  
Vol 383-390 ◽  
pp. 1190-1194 ◽  
Author(s):  
Kai Wu
Keyword(s):  
Navigation System ◽  
Adaptive Estimation ◽  
Estimation Method ◽  
Dead Reckoning ◽  
Density Model ◽  
Multiple Model ◽  
Atmospheric Density ◽  
Multiple Model Adaptive Estimation ◽  
Precision Landing ◽  
Navigation Method

In order to satisfy the needs of Mars precision landing, a Mars entry navigation method is proposed for the problem of Mars atmospheric density model uncertainty. The navigation system processes accelerometer outputs as measurements, employs an extended Kalman filter bank regulated by the generalized multiple-model adaptive estimation method. Simulation results demonstrate the navigation system can identify the real atmospheric density model automatically, and show adaptivity and robustness to the uncertainty of atmospheric density. The navigation performance is greatly improved compared with traditional dead-reckoning

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