Non-linear three-step filtering method for Mars atmosphere entry section
An entry-level, non-linear technology, applied in the field of aerospace navigation, can solve problems such as difficulty in application, error, and difficulty in correction
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[0086] The invention relates to a nonlinear three-step filtering method for the Martian atmosphere entry section. The spacecraft enters the Martian atmosphere along the flight trajectory, and the corresponding simplified dynamic system is the following equation:
[0087] r · = v sin γ
[0088] v · = - ( D + g M sin γ )
[0089] γ · = ( v r - g M v ) cos γ + 1 v L cos σ
[0090] ...
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