| 基于CCSDS 标准的遥感卫星下行数据纠错校验技术 |
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| 引用本文： | 韩家玮,张洪群.基于CCSDS 标准的遥感卫星下行数据纠错校验技术[J].空间科学学报,2009,29(1):112-116. |
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| 作者姓名： | 韩家玮 张洪群 |
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| 作者单位： | 1.中国科学院研究生院, 北京100049 |
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| 摘 要： | 卫星下传时难免会受到噪声干扰, 影响数据质量. 为了尽可能减少噪声干扰对卫星数据的影响, 几乎所有卫星在其数据下传时都加入了容错编码, 以提高卫星数据的抗干扰能力. 与此相适应, 地面处理系统要相应地进行纠错校验处理. 本文研究了基于CCSDS 标准的PN, CRC, RS 和Viterbi 纠错校验处理技术, 论述了纠错原理, 以Envisat 卫星为例, 给出了各种纠错校验处理技术的软件实现方法.
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| 关 键 词： | 纠错码 PN CRC RS Viterbi |
| 收稿时间： | 1900-01-01 |
Error Correction Technology Based on CCSDS Standard for Remote Sensing Satellite |
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| HAN Jiawei,ZHANG Hongqun.Error Correction Technology Based on CCSDS Standard for Remote Sensing Satellite[J].Chinese Journal of Space Science,2009,29(1):112-116. |
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| Authors: | HAN Jiawei ZHANG Hongqun |
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| Institution: | 1;2;Graduate University of Chinese Academy of Sciences;Beijing 100049;Remote Sensin9 Ground Station of China;Chinese Academy of Sciences |
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| Abstract: | There is always noise disturbance during the satellite data downlink.Almost all the satellite data is coded before down]ink to enhance the ability of anti-disturbance.Among those many data processing ways to reduce the influence of the noise in the signal channel,the Consultative Committee for Space Data Systems (CCSDS) provides many kinds of coding ways to improve the data quality.In this paper,we will discuss the theory of error correction for PN,CRC,RS and Viterbi based on CCSDS standard firstly,and then... |
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| Keywords: | PN CRC RS Viterbi |
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