A Study on Some New Techology Applied to Modern Astronomical CCD Controller

In this thesis we have first presented the overview of the latest progress in the CCD controller. We have introduced the first astronomical CCD detectro system in China, that is ^#1CCD system in Yunnan Observatory. The compact CCD controller made by Netherlands Foundation for Radio Astronomy and Royal Greenwich Observatory is an important CCD controller in the world and it has many influences on our future work, therefore we have also introduced it in detail. Because ESO had a plan to build VLT (very large telecopes), it is necessary for ESO to build a new generation of CCD controller used in the VLT, so ESO developed an idea of Array Control Electronics. We have also introduced the idea in detail in order to show what is the direction of developing future astronomical CCD controller. At the end of the chapter, we have concluded the requirement of future astronomical CCD controller in China.Then we have briefly introduced two new technologies that will be used in Astornomy: DSP& FPGA/CPLD. DSP(digital signal processor) is developed firstly in signal processing field. As the architecture, speed, etc. of the DSP are unmatched by using usual microprocessor, it has been spreaded at many fields, such as automatic control, voice reconstruction, image/graph processing, telecommunication, etc. In the field of astronomical instruments, DSP has not been widely spreaded yet. We have introduced two kinds of DSP: Fixed point devices & float point devices with the typical chips respectively. We hope that the usage of DSP in astronomical instruments will help us to improve the performance of the instruments. On the other side, FPGA& CPLD electronic engineers. It will save the area of the PCB, time of designer, and expenses. It is easy to design and modify. Therefore we think that it must be introduced to the field of astronomical instruments as so on as possible. We have mainly introduced:1) X ILINX INC. XC FAM ILY FPG A; 2) AMD INC. MAC HFAM ILY C PLD. We have also discussed the possibility to build an universal CCD controller used in modern astronomy. We think that the bus architecture is one of the best choice to bulid such a controller, the reasons are presented in this chapter.In the last chapter, we try to put these technologies into practice to build a new CCD controller used in Chinese Balloon Solar Telesco peplan. Based on the third chapter, we try to build a new CCD controller with bus architecture. We have used TM S320C25 DSP and the MACH family CPLD to solve the probelm. We hope this endeavor will be helpful for the future astrono mical CCD controller in China.