A Walker Constellation Deployment Method Based on Dual Parking Orbits

Abstract

The invention provides a Walker constellation deployment method based on double berthing orbits. The method comprises the following steps of: S1, delivering satellites for deploying a Walker constellation to a first berthing orbit and the second berthing orbit respectively; S2, enabling the first satellite to enter a working orbit through orbital maneuver and enabling the remaining satellites to remain in the first berthing orbit and the second berthing orbit; S3, waiting for the precessional motion of the orbital surface of the current berthing orbit relative to the orbital surface of a working orbit of an adjacent satellite until an ascending node of orbital surface and the right ascension have a preset angle, and then enabling the next satellite to enter the working orbit through orbital maneuver, and in the same way, enabling all the satellites for deploying the Walker constellation to enter the working orbits successively. The method can solve the limitation of a single-orbit plane deployment using one rocket with multi satellites, and solve the long single-berthing-orbit different-surface deployment period of the one rocket with multi satellites, and optimizes constellation deployment time and satellite deployment precision angle of the satellite relative position.

Description

technical field [0001] The present invention relates to a constellation deployment method, in particular to a Walker constellation deployment method based on double parking orbits. Background technique [0002] Orbcomm system (Orbcomm system) belongs to the dedicated data communication satellite system. It is a short data communication constellation system constructed and operated by Orbcomm LLC in the United States in the 1990s. The Orbcomm system satellite constellation consists of 47 satellites, including 7 The orbital plane adopts the LEO orbit with an orbital altitude lower than 1000km. The Orbcomm constellation deployment adopts one orbital plane with one rocket and multiple satellites, and 7 orbital planes need to launch 7 rockets. [0003] Satellite constellation systems such as Iridium communication constellation, Global Star communication constellation, GPS navigation satellite constellation, and Beidou navigation satellite constellation all use one arrow and multi...

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Problems solved by technology

[0005] The constellation deployment methods proposed by these existing satellite constellation systems or related patent documents mentioned above have one or more of the following disadvantages: first, multiple satellites with one arrow only deploy one orbital plane, and multiple orbital planes require multiple satellites. For a single launch, the launch deployment preparation period is long and the cost is high. For constellations with a small number of single orbital planes and light satellites, the cost-effectiveness of launch deployment is low; such as Orbcomm constellation, Iridium constellation, Global Star constellation, GPS navigation satellite constellation and Beidou constellation The satellite constellation adopts this launch and deployment method, but the number of satellites in one orbital plane of the above-mentioned constellation is large or the satellite quality is heavy, so it is reasonable to deploy one orbital plane with one arrow

Second, launching multiple satellites with one arrow, using a single parking orbit to achieve different-plane deployment, can solve the limitations brought about by deploying only one orbit for multiple satellites with one arrow. This method is adopted for COSMIC constellation deployment; but when the number of satellites is large and In the case of a large distribution range of the orbital surface, the use of one-arbit multi-satellite single-parking orbit to achieve different-plane deployment, the cycle is longer

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