Study On Anti-interference Of Telecommandand Telemetry Data Communication System For Space Launch

Electromagnetic environment in range is very complicated because of many ground aerial electronic equipments in the launch site which equipments consisted of tracking, measuring and telemetering propellant rocket, also sometimes there are all kinds of equipments including optical instrument,optical etc.,So the study of electromagnetic compatibility technology and anti-interference technology in range is very important.Starting from application of electromagnetic compatibility technology and anti-interference technology in range, Problems of electromagnetic interference and compatibility within space flight measurement and control are analysed in theory. Anti-interference technique and electromagnetic compatibility technique are discussed based on software anti-disturbance technology and hardware anti-jamming technology which including shielding technique, grounding technique, wave-filtering technology, electrostatic discharge and the control of motor vehicles interference to restrain all kinds of interference in range, Interference eharacter of electronic equipments and electromagnetic compatibility in xichang Satellite launch center are researched.The traditional electromagnetic compatibility test require that all the equipments should be used in order to test EMC, On the basis of past experiments, a Method is discussed which can accelerate the process of EMC by preliminary analysis, and can eliminat interference with spectrum monitoring. The application of electromagnetic Interference and compatibility are analysed in instruments of aerospace measurement and control. Good electromagnetic compatibility(EMC) are presented in xichang Satellite launch center.Problems of Electromagnetic Interference and compatibility are analysed in xichang Satellite launch center,On the basis of past experiments a method is discussed which can accelerate the process of EMC by preliminary analysis and can eliminat interference with spectrum monitoring. Then researched on the electromagnetic compatibility,the article also gives suggestions about electromagnetic compatibility.