Technical Testing Of Drift-scan CCD Camera

The drift scanning CCD which based on the TDI read-out technology, can be used to track the star by moving charges, and it has provided one feasible method for the minor planet and the comet observation. In order to observe the minor planet and the comet by drift scanning on the 1 meter telescope of Yunnan Ob., the Lab. Optics & Electronics of Yunnan Observatory decided to develop a drift scanning CCD camera independently. As the preliminary theoretical exploration and the technical testing work, we set up a sky-survey drift-scanning CCD camera which based on PC-104 embedded computer and CPLD.This article divides into four parts: The first chapter simply reviewed the development of drift scanning CCD. The second chapter introduced the basic principle of drift scanning CCD, two kinds of drift scanning sky survey ways were introduced: The pure TDI and the great-circle tracking; the distortion of image also has been analyzed in the end of this chapter. The third chapter introduced the design proposal of the software and hardware and the simulation and the testing results. At the end of the paper, we make a summary of the design process and the work we should go on in the near future.At present, this drifting scanning CCD has already been processed completes, and its basic function has been tested on a small telescope, and just waiting for the observation time of 1 meter telescope to do finally testing. This design experience will establish the theories foundation and practice experience for the further study.