航天移动遥测和深空遥测中频道编码的历史
1Department of Electrical and Computer Engineering, Brigham Young University, Provo, UT 84602, USA.
Entropy (Basel, Switzerland)
|August 29, 2024
概括
航天员和旅行者等深空任务中的通道编码进步使关键数据传输成为可能. 由于带宽的效率,航空遥测现在采用了最近的高速LDPC代码.
科学领域:
- 电气工程 电气工程
- 计算机科学 计算机科学
- 航空航天工程 航空航天工程
背景情况:
- 深空和航空遥测对于通道编码有着不同的历史发展路径.
- 早期的深空任务,如水手和开拓者率先使用通道代码.
- 航天遥测历来因带宽限制而面临采用频道代码的挑战.
研究的目的:
- 介绍深空和航空移动遥测中通道代码开发的全面历史.
- 为了突出关键的里程碑",第一",和远程测量编码的重大成就.
- 检查影响不同遥测领域采用和拒绝通道编码的因素.
主要方法:
- 道编码进步的历史审查和分析.
- 具体太空任务 (Mariner,Pioneer,Voyager,Galileo) 的案例研究及其编码策略.
- 检查带宽限制对航空遥测中的编码选择的影响.
主要成果:
- 深空遥测在连接代码 (旅行者号) 和关键干预 (利略号) 方面取得了早期成功.
- 航天员和航天员的开创性代码为未来的深空通信奠定了基础.
- 轮码和LDPC码代表了最新的进步,大大提高了数据可靠性.
- 航空移动遥测采用代码在历史上是有限的,但高速率的LDPC代码现在正在被整合.
- 带宽高效的调制与高速的LDPC代码一起,正在推动航空应用中的采用.
结论:
- 频道编码对于深空探索的成功至关重要,并且对航空移动遥测越来越重要.
- 从早期代码到现代LDPC和轮码的演变表明了数据传输可靠性的持续创新.
- 技术进步,特别是高速的LDPC代码和高效的调制,正在克服航空遥测的历史障碍.
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