The CCD star sensor is a kind of higher accuracy and more advanced technology of attitude sensitive equipment which observes fixed star as benchmark, and it is widely used on satellite attitude control system. It has many advantages which includes high precision, high sensitivity, no attitude accumulative error and so on. This paper describes how to design and develop a signal processing system (SPS) based on FPGA (Field Programmable Gate Array) for CCD star sensor. Above all, an integrated solution to a signal processing system is put forward briefly, which contains the design of system architecture and system function. Secondly, Some Key technologies of design and implementation are described in detail, which contain these designs of data stream, instructions stream, multi-clock data processing and triple modular redundancy (TMR). In practice, hardware and system tests have been carried out, and the results prove that the SPS is reliable and stable, and it has been used successfully in CCD start sensor.
Video signal processor (VSP) is an important part for CCD remote sensing cameras, and also is the key part of light
miniaturization design for cameras. We need to apply FPGAs to improve the level of integration for simplifying the video signal
processor circuit. This paper introduces an integration design of FPGA software for video signal processor in a certain space remote
sensing camera in detail. This design has accomplished the functions of integration in CCD timing control, integral time control, CCD
data formatting and CCD image processing and correction on one single FPGA chip, which resolved the problem for miniaturization
of video signal processor in remote sensing cameras. Currently, this camera has already launched successfully and obtained high
quality remote sensing images, which made contribution to the miniaturizing remote sensing camera.