Autonomous astronomical navigation method of spark detector based on improved MMUPF filtering method
A Mars probe and celestial navigation technology, applied in the field of aerospace navigation, can solve the problems of low accuracy of filtering method and large amount of calculation
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[0047] Such as figure 1 As shown, the present invention takes Mars probe as an example, and the specific implementation method is as follows:
[0048] Establish the state equation of the navigation system of the Mars rover on the transfer orbit based on the orbital dynamics.
[0049] According to the needs of the celestial navigation system, the four-body Singer model is adopted, which uses the first-order Singer model to model other perturbation items on the basis of the four-body model. The model (system state equation) in the heliocentric inertial coordinate system (J2000.0) can be expressed as:
[0050] r · · ps = - μ s r ps r ps 3 - μ m [ ...
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