A relative navigation analysis method based on relative motion of binary star formation only ranging

Abstract

The present invention provides a method for analyzing the relative motion of the dual-satellite formation cycle, which can only rely on the off-centre installation and attitude of the antenna receiver without performing special orbital maneuvers and without increasing the receiving antenna of the on-board data link. With the mirror image maneuver assistance, the analytical autonomous relative navigation of the periodic relative motion formation double star can be realized. It uses the relative orbital motion equation of the binary star in the binary star formation as the navigation state equation to evolve the relative orbit, and uses the relative distance information before and after the attitude mirroring maneuver measured by the satellite-borne data link antenna receiver installed away from the satellite mass center to analyze and solve the relative position And the relative speed, to complete the cycle relative movement formation binary star only ranging relative navigation. By introducing the eccentricity effect of the installation of the antenna receiver away from the center of mass of the satellite, the observability of the relative navigation solution of only ranging is obtained; the analytical solution is obtained by using the attitude mirror maneuvering assistance to obtain the relative position and velocity.

Description

technical field [0001] The invention belongs to the field of space autonomous relative navigation, and relates to a relative navigation analysis method for the relative motion of a double-star formation cycle only. Background technique [0002] With the development of space technology and the deteriorating space environment, the complexity of space missions is increasing. A large part of the tasks that can be completed by a single expensive and precise satellite in the past will be gradually replaced by distributed satellite systems due to problems such as high cost, long development cycle, poor maintainability, and limited working life. [0003] One of the important links in the work of the distributed satellite system is satellite formation flight, and high-precision relative navigation is the key premise of formation flight. The commonly used microwave radar can only be installed and used on large spacecraft such as spacecraft because of its complex system, high cost, an...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the present invention provides a relative navigation analysis method for the periodic relative motion of the double-star formation, which can perform orbital maneuvering without consuming propellant and without increasing the receiving antenna of the on-board data link. , only relying on the installation of the antenna receiver away from the center of mass of the satellite and the assistance of a mirror image attitude maneuver, the autonomous analytical relative navigation under the condition of periodic relative motion formation double star inertial flight can be realized

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