To Nereid:
After reading relevant papers,I found many researchers have successfully accomplished the work in which atmosphere drag acceleration is treated as process noise. But the authors have not mentioned their solution in detail.
I posted this question in the sub-area of Celestial...
To SpaceTiger:
SIRF is a kind of filtering method. Position and velocity are all vector variants,which consist of three direction components. Accelerations are not included in the state of X estimated, and the process noise(here,we take atmosphere drag acceleration as the process...
to space tiger:
The atmosphere drag model i have adopted is :
a=-[Cp(A/M)V(VectorV)]/2
where C is the coefficient of atmosphere drag
p is the atmosphere density
V is the velocity (scale value)
VectorV is a velocity (vector value), the satellite velocity with respect to atmosphere
but i...
During my work of space vehicle orbit determination, I have been confronted with a difficulty that hasn't been solved until now. When calculating the transition matrix that translate the process noises to the state parameters of position and velocity,how can I work out the partial derivatives of...
During my work of space vehicle orbit determination, I have been confronted with a difficulty that hasn't been solved until now. When calculating the transition matrix that translate the process noises to the state parameters of position and velocity,how can I work out the partial derivatives of...