Time-varying inter-satellite link network topology planning method for satellite navigation system

Abstract

The invention provides a time-varying inter-satellite link network topology planning method for a satellite navigation system. The overall design thought comprises: solving the inter-satellite link topology in each time slot in sequence; every time the inter-satellite link topology solution of one time slot is completed, updating the algorithm parameters so as to solve the inter-satellite link topology of the next time slot, performing global optimization after the inter-satellite link network topology solution of all the time slots is completed, and finally outputting the topology planning ofone link establishment period.

Description

technical field

[0001] The invention relates to the field of satellites, in particular to a network topology planning method for time-varying inter-satellite links in a satellite navigation system. Background technique

[0002] The inter-satellite link is to establish a wireless link between satellites. In the navigation system, the construction of the inter-satellite link can realize the communication and ranging functions between the satellites. The use of the inter-satellite link communication can more frequently update the navigation ephemeris Update to improve the service performance of the navigation system, and at the same time realize the forwarding of measurement and control information, and conduct indirect measurement and control of the navigation constellation; use the inter-satellite link for inter-satellite ranging, which can improve the accuracy of satellite orbit determination, or when there is no ground station support Realize the autonomous operation of the...

Examples

Embodiment Construction

[0043] In describing the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top ", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. The attached drawings are schematic diagrams or conceptual diagrams, and the relationship between the thickness and width of each part, as well as the proportional relationship between each part, etc., are not completely consistent with their actual values.

[0044] The g...

technical field

[0001] The invention relates to the field of satellites, in particular to a network topology planning method for time-varying inter-satellite links in a satellite navigation system. Background technique

[0002] The inter-satellite link is to establish a wireless link between satellites. In the navigation system, the construction of the inter-satellite link can realize the communication and ranging functions between the satellites. The use of the inter-satellite link communication can more frequently update the navigation ephemeris Update to improve the service performance of the navigation system, and at the same time realize the forwarding of measurement and control information, and conduct indirect measurement and control of the navigation constellation; use the inter-satellite link for inter-satellite ranging, which can improve the accuracy of satellite orbit determination, or when there is no ground station support Realize the autonomous operation of the...

Examples

Embodiment Construction

[0043] In describing the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top ", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. The attached drawings are schematic diagrams or conceptual diagrams, and the relationship between the thickness and width of each part, as well as the proportional relationship between each part, etc., are not completely consistent with their actual values.

[0044] The g...

Images