Method for designing space-based measurement and control data format adapted to Beidou short message

Abstract

The invention provides a method for designing a space-based measurement and control data format adapted to a Beidou short message, comprising the following steps: telemetry data format definition: framing is completed through nested packaging to obtain a telemetry frame, the frame length of the telemetry data is within a 240 Byte limit, a direct short message insertion mode is adopted, and the telemetry frame is divided into containing an insertion field and not containing the insertion field; direct instruction format definition: the length does not exceed the 240 Byte frame of the Beidou short message, a direct short message insertion mode is used, and a remote control instruction is composed of a guide code, an instruction code, an execution sequence and an end sequence; data injectioninstruction format definition: a data injection instruction consists of the guide code, length information, an injection instruction code and the end sequence, moreover, when the injection instructioncode exceeds 226 Byte, the code is disassembled into multiple packages for sending, and an odd-even check redundancy packet is added. According to the method in the invention, the characteristics ofthe Beidou short message is analyzed, the instruction formats are all subjected to an adaptive design, and a data format support is provided for spacecraft measurement and control management based onthe Beidou short message.

Description

technical field [0001] The invention belongs to the technical field of spacecraft measurement and control, and relates to a space-based measurement and control data format design method adapted to Beidou short messages. Background technique [0002] With the development of commercial satellites, especially the mass launch of medium and low orbit satellites and constellations, the number of commercial satellites in orbit has increased dramatically, posing new challenges to measurement and control, especially measurement and control resources. [0003] Utilizing the forwarding function of geosynchronous satellites to realize continuous measurement and control communication in the middle and low orbits, or using the forwarding function of the constellation of medium-orbit satellites to realize continuous measurement and control communication in low orbits, are equivalent to improving the space position of the measurement and control station and increasing the centering 1. The T...

AI Technical Summary

Problems solved by technology

However, since domestic relay satellites are currently mainly used to support government and military applications, and the cost of commercial services is relatively high, they cannot meet the growing demand for measurement and control of commercial small satellites in low and medium orbits

At the same time, based on the consideration of commercial service costs, the construction of a large number of ground-based measurement and control station networks at home and abroad requires a large economic investment, so it is urgent to develop a new comprehensive space-ground integrated measurement and control system

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