Multi-scene random access method for tracking, telemetry and command communication system

Abstract

The invention discloses a multi-scene random access method for a tracking, telemetry and command (TTC) communication system, and aims to solve the problem that the existing planned access TTC means cannot meet the TTC requirements of future space systems. The method is implemented by the following technical scheme: if the application scenario is a multi-beam full-space scanning access mode, a spacecraft continuously sends telemetry signals, a TTC communication system calls a scanning beam for full-space target search and identifies the received telemetry signals, and a remote control signal istransmitted to the spacecraft if the spacecraft is a cooperative spacecraft; and if the application scenario is an omnidirectional antenna-assisted access mode, the spacecraft periodically transmitsaccess beacons, telemetry signal parameters and ephemeris data of the spacecraft are obtained and sent to the TTC communication system, a tracking beam is called to capture, track and demodulate the telemetry signals sent by the spacecraft, the demodulated data is sent to a TTC center through an optical fiber, and the TTC center generates a remote control command and sends the remote control command to the spacecraft through the TTC communication system to complete random access.

Description

technical field [0001] The invention relates to a multi-scenario random access method for a measurement and control communication system designed mainly for the field of aerospace measurement and control communication and designed for the efficient and flexible operation of space-ground integrated networks. At the same time, the method can also be applied to UAV measurement and control and situation awareness field. Background technique [0002] With the rapid growth of commercial and mission demands for on-orbit spacecraft, small and medium-sized spacecraft systems mainly for commercial purposes adopt a constellation-deployed system architecture, and the number of satellites has increased dramatically. In June 2015, the Northern Sky Research Institute Consulting Company of the United States released the second edition of the "Micro-Nano Satellite Market" report, predicting that more than 2,500 micro-nano satellites below 100Kg will be launched worldwide in the next ten year...

AI Technical Summary

Problems solved by technology

The existing planned access measurement and control methods cannot meet the measurement and control requirements of future aerospace systems. The random access scenario design and access method of the measurement and control communication system is an important research direction for the random access of aerospace vehicles. No relevant research literature reports

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