北京航空航天大学学报 ›› 1999, Vol. 25 ›› Issue (6): 743-746.

• 论文 • 上一篇    下一篇

星载高速图像数据压缩原理样机的研制

程子敬1, 周孝宽2   

  1. 1. 北京航空航天大学 计算机科学与工程系;
    2. 北京航空航天大学 宇航学院
  • 收稿日期:1999-04-20 出版日期:1999-06-30 发布日期:2010-09-28
  • 作者简介:男 28岁 博士生 100083 北京
  • 基金资助:

    国家部委基金资助项目

Development of the Prototype of High Speed Image Compression Device for Satellite

Cheng Zijing1, Zhou Xiaokuan2   

  1. 1. Beijing University of Aeronautics and Astronautics,Dept. of Computer Science and Engineering;
    2. Beijing University of Aeronautics and Astronautics,School of Astronautics
  • Received:1999-04-20 Online:1999-06-30 Published:2010-09-28

摘要: 针对星上高速遥感数据实时压缩要求,选用多模式自适应量化压缩算法,设计了同步并行阵列与流水线相结合的压缩系统体系结构,并以可编程序门阵列物理实现.采用四路压缩系统并行的阵列结构,研制成功高速数据压缩原理样机,数据处理速度大于1000Mbit/s,恢复图像平均峰值信噪比大于40dB.

Abstract: Hardware implementation of Multi Mode Adaptive Quantization Compression (MMAQC) algorithm for high speed image compression is investigated. Using pipeline and synchronization parallel arrays, the VLSI architectures for modeling, quantization and coding are proposed. The proposed hardware architectures are fast with low hardware complexity. Based on the architectures, a prototype of high speed image compression device for satellite is designed and manufactured with Field Programmable Gate Arrays. Test results show that at compression ratio of four, the processing speed of the device is above 1000Mbit/s, and the average PSNR of restored images is above 40dB.

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