A high-precision regressive orbit maintenance method in a gravitational field based on monopulse orbit control

Abstract

The invention discloses a method for maintaining a regression orbit in a high-precision gravitational field based on monopulse orbit control, including: constructing a high-order Poincaré map and solving a multi-objective optimization function for the initial value of the regression orbit, and obtaining the first initial value of the regression orbit by solving ; Orbit integration is performed on the initial value of the first regression orbit to obtain the orbit state quantity; according to the orbit state quantity, the high-order Poincaré map is reconstructed, and the solution is obtained to obtain the next regression orbit initial value; according to the orbit state quantity and the next regression orbit The speed difference of the initial value determines the single-pulse speed increment required for orbit control, and realizes the maintenance of the return orbit in the high-precision gravitational field. On the basis of the orbit design as the nominal value, the present invention connects the orbital velocity states in adjacent regression periods by applying velocity pulses at the ascending node of the equator, thereby realizing high-precision orbital control and making the actual sub-satellite point track of the satellite deviate The nominal position distance is within the threshold set by the user.

Description

technical field [0001] The invention belongs to the technical field of satellite mission analysis and orbit design, in particular to a method for maintaining a homing orbit in a high-precision gravitational field based on monopulse orbit control. Background technique [0002] As a special mission application orbit of the low-Earth orbit, the return orbit is widely used in missions such as remote sensing of the earth and reconnaissance and surveying due to the characteristics of complete repetition of sub-satellite point trajectories at a certain time interval. [0003] Orbit control technology is an important part of satellite mission analysis and orbit design technology. Due to the perturbation in the space environment, especially non-conservative forces such as atmospheric drag will cause the drift of the sub-satellite point trajectory. If there is no necessary orbit maintenance control, the long-running homing orbit will lose its homing characteristics in the actual spac...

AI Technical Summary

Problems solved by technology

For any space mission using a return orbit, one of the main problems is that when the spacecraft deviates from the reference orbit to a certain extent, periodic control needs to be applied to return to the return orbit condition, otherwise the deviation will increase and the mission will fail

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