卫星软格式化同步器与资源卫星1号02星CCD数据移动窗相关技术研究
doi: 10.11728/cjss2005.04.20050413 cstr: 32142.14.cjss2005.04.20050413
Software Frame Synchronizer and Related Technology Research of Moving Window Display for CCD Data of CBERS-2
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摘要: 处理速度一直是软件帧同步的瓶颈所在,通过引入KMP和Rabin-Karp算法,寻找到一种高效的帧同步处理算法,提高了处理速度,最终设计完成了通用的卫星软件帧同步器,并进行了相关验证测试和分析,给出了分析比较结果.在分析中巴资源卫星1号02星数据格式的基础上,利用所设计的软件帧同步器和DirectX显示技术,实现了一套针对资源卫星双通道CCD传感器的全软件移动窗显示系统,并对该卫星数据的图像交叠等现象作了相应处理.这套软件帧同步器和移动窗显示系统可以作为开发卫星接收记录系统的重要组成部分.Abstract: The processing speed is the key problem of software frame synchronization. This article, using the arithmetic of KMP and Rabin-Karp, give an effective method in software frame synchronization, which increase the processing speed. And a software frame synchronizer was built and related test and analysis were made, the result was given in the paper. With the analysis of the data format of CBERS-2 (China-Brazil Earth Resources Satellite) and using the software frame synchronizer and the technology of DirectX display, a software moving window display system of the CBERS CCD two channels sensor was made. The effect of the overlap data of this satellite was lighten by some method. The software frame synchronizer and moving window display system can act as very important parts in a data recording system.
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Key words:
- Frame synchronize /
- Moving window /
- CBERS /
- CCD
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