Design And Implementation Of Small Satellite Ground Simulation Intelligent Control And Observation Verification System

In recent years, Micro-satellite technology in our country get a rapid development. Especially in the field of intelligent observation, relative to Large Sat, Micro-satellite is easier to achieve the research and design of intelligent observation system with its features of functional specificity, load design flexibly and low research cost.This paper starts from the study of real Micro-satellite structure, based on the research of universal platform architecture and design, the application of common data bus such as CAN and the design principles of load. Then we introduce the related technology to design the simulation system, such as the FPGA chip and its version selection, the camera load model selection and parameter information used in this system, the basic concept of inertial/GPS navigation system and the of data protocol. Finally, illustrates the design and realization of the intelligent control system of multi camera loads and the system of observation and verification, the main contents include:Frist, research on the whole scheme of intelligent observation subsystem in Micro-satellite ground simulation system, the function interface of multi camera load in intelligent control system. Based on the serial communication, design the communication protocol between host computer and load control circuit, so that it can better external trigger synchronization the camera though the command which send from the host computer to the control circuit. At the same time, design multi camera load outside trigger synchronization control circuit based on FPGA, which main function is analysis the command that be send from host computer and control the camera to be trigger.Second, the main purpose of observational verification system is to simulate the Micro-satellite intelligent observation system run in actual flying in the ground, therefore the focuses in this system is the design on route planning and real time control scheme. The paper adopts inertial/GPS integrated navigation system as the real-time location information source system, and then verifies the load control system in regional planning mode, to provide reference for the whole ground simulation system.After complete the system design, and then design the test scheme of system performance. Use professional test tool to test key module and related indicators, the effect has reached the design requirements. In the last part of the paper is summarized and the prospect of future work plan and research.The system this article design integral whole intelligent observation and intelligent transport system, and then provides research and verify in the function of the Micro-satellite of next generation intelligent load observation, accumulated experience and achieve the expected goal. In addition, in this background, published one Chinese core academic papers, participate one flight experiment.