The Study And Application Of Spread Spectrum TT&C Ground Test System

Spread spectrum TT&C ground testing technology at home and abroad in this paper through the research and application status of measurement and control system for this kind of applied to new spaceborne spread spectrum measurement and control system of the ground testing system are studied, for the ground testing system has the corresponding function and application in the actual testing tasks. According to the working process of the spaceborne spread spectrum measurement and control system, which leads to the need to spread spectrum TT&C ground testing system to test the demand, the necessity of the test, the composition and function of the testing system and the key technology of spread spectrum TT&C ground testing system are expounded. Focus on the spread spectrum TT&C ground testing system has carried out detailed research and design, first carries on the analysis from the test requirements, design for test system based on the requirements. On this basis, carry out the detailed design of the system, the design of spread spectrum TT&C ground test system mainly includes the measurement and control computer, integrated baseband processing equipment, the uplink channel launch, a downlink receiving channel, the ground TT&C antenna, etc., which mainly carry out the measurement and control computer and the integrated design of baseband processing equipment. Measurement and control computer from the interface, data transmission mode, software design, integrated baseband processing equipment according to the composition of PC workstations, intermediate frequency receiving unit, intermediate frequency modulation unit three parts separately carried on the detailed design. According to the result of the ground testing system design, test system integration, and the actual test experiment was carried out. According to the actual working test environment, carding and design needs to test project, set up test system, using different testing methods, the application of detailed and reasonable test steps, some spaceborne spread spectrum measurement and control system for the actual test, then the paper analyzed the function verification and performance test result. Through the above work permit mentioned in this paper, the ground testing system design, can achieve the goal of complete test task, can be applied to the actual test tasks. In view of the current testing technology progress and improve the test efficiency and error prevention requirements, carry out the test automation technology in the application of spread spectrum TT&C ground testing system of research, puts forward the overall architecture of automated test system, carried out the design of hardware and software, and gives concrete examples according to the automated test process. Finally, the research work is summarized and prospected.