Research On The Rough Tracking System Of The Ground Laser Communication Terminal Based The Space Communication

The article is imbursed by the national high technology 863 project.It's about the research of the rough tracking table's structure and thetemperature control system of the load of the ground laser communicationterminal.The article distributes the rough tracking table's mechanical systemparameters of the ground laser communication terminal, designs thestructure of the rough tracking table, selects and designs the primarycomponents for it such as electromotors, the sensors for measuring degreesand bearings, and analyse the shaftings' precision.Because of the experimental temperature where the ground lasercommunication terminal locates varies greatly, the temperature controlsystem is designed to keep the optical and electronic components workingproperly in the load. The load is divided into two parts to controltemperature. The heater and the thermoelectric cooler is used to calefy andrefrigerate the load. Finally the hardware of the temperature control systemis designed, and the mathematic model which is emulated with Matlab isestablished.