Small celestial body landing fixed thrust trajectory tracking control method
A trajectory tracking and control method technology, applied in the field of deep space exploration
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[0036] In order to better illustrate the purpose and advantages of the present invention, the content of the invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0037] Such as figure 1 As shown, this example designs the nominal landing trajectory for the landing of a small celestial body, calculates the speed increment required at the current moment according to the difference between the actual position velocity of the detector and the nominal trajectory position velocity, and then calculates the engine start-up in combination with the thrust of the fixed-thrust engine time, to realize small celestial body landing constant thrust trajectory tracking control.
[0038] The specific implementation method of the small celestial body landing fixed thrust trajectory tracking control method disclosed in this example is as follows:
[0039] Step 1: Preset the nominal trajectory of the landing satisfying the terminal position and...
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