A general simulation system for measurement and control subsystem of small satellite spread spectrum system

Abstract

A general simulation system of a measurement and control subsystem of a minisatellite spread spectrum system comprises a measurement and control signal processing simulation module, a measurement and control interface simulation module, a GPS simulation module and a simulation control platform. The general simulation system can achieve radio frequency processing, intermediate frequency processing and baseband processing of measurement and control signals, achieve simulation with physical interfaces of other lower computers, and achieve output or forwarding of GPS pulse per second signals and broadcasting of time and orbital data when being in a semi-physical working mode, wherein the physical interfaces comprises the CAN bus interface, the remote measurement and control interface, the direct instruction interface, the clock output interface and the star arrow separation signal output interface. The general simulation system can receive remote measurement and control data in an LAN bus for interface simulation and GPS simulation when being in a full-digital working mode. Configurable function board cards are selected, the PXI bus technology is adopted, the integration degree is high, configuration is flexible, cost is low, function extension of the system can be conveniently conducted, the requirement for verification of multiple new technologies of the minisatellite measurement and control subsystem can be met, and the electric performance test environment of the measurement and control subsystem can be provided for development of a novel minisatellite platform.

Description

technical field [0001] The invention is a general simulation system of the measurement and control sub-system of the small satellite spread frequency system, in particular the general simulation system of the measurement and control sub-system of the spread frequency system based on the PXI bus technology. Background technique [0002] The small satellite simulation system is a development platform used to initially provide new control algorithms, autonomous management technology, intelligent data processing technology and other new technologies, and provide an electrical performance test environment for the development of new small satellite platforms. [0003] The general simulation system of the small satellite spread spectrum measurement and control subsystem is an important part of the small satellite simulation system. It completes the data simulation and processing functions of the main equipment of the measurement and control subsystem such as measurement and control ...

AI Technical Summary

Problems solved by technology

[0007] (1) It is mainly limited to the emulation of the function of the transponder for the USB system, but currently small satellites are widely using the transponder of the spread spectrum system

[0008] (2) The compatibility with different types of front-end and back-end equipment interfaces is not fully designed, resulting in limited application range

[0009] (3) The function mode is single, which is "full physical" or "semi-physical" or "full digital" mode, and does not integrate multiple functional modes to meet the different needs of different users at the same time

[0010] (4) The functional design is limited to radio frequency and intermediate frequency signal processing, as well as telemetry information generation and remote control command response, and does not expand the functions of physical forwarding of direct commands, clock output, GPS time and orbit data broadcasting

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