| MC-CDMA在TDRSS系统SMA业务中的适用性研究 |
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| 引用本文： | 陈洪,陈一鸣,张尔扬.MC-CDMA在TDRSS系统SMA业务中的适用性研究[J].宇航学报,2007,28(2):479-483. |
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| 作者姓名： | 陈洪 陈一鸣 张尔扬 |
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| 作者单位： | 国防科技大学,电子工程学院,长沙,410073 |
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| 摘 要： | 针对传统跟踪与数据中继卫星通信系统（TDRSS）SMA多址业务中单载波CDMA数据传输速率和频带利用率低的缺点，提出采用多载波CDMA（MC-CDMA）进行替代的方案，对MC-CDMA在TDRSS中应用需解决的关键技术问题进行分析并提出相应的对策。研究表明，MC-CDMA完全适用于TDRSS星上系统，数据传输速率和频带利用率高，对提高TDRSS数据传输性能具有十分重要的应用价值。
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| 关 键 词： | TDRSS DS-CDMA MC-CDMA SMA |
| 文章编号： | 1000-1328（2007）02-0479-05 |
| 修稿时间： | 2006-03-132006-11-21 |
Applicability Study of MC-CDMA in TDRSS SMA Servings |
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| CHEN Hong,CHEN Yi-ming,ZHANG Er-yang.Applicability Study of MC-CDMA in TDRSS SMA Servings[J].Journal of Astronautics,2007,28(2):479-483. |
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| Authors: | CHEN Hong CHEN Yi-ming ZHANG Er-yang |
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| Institution: | Electronic Engineering Institute of NUDT, Changsha 410073, China |
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| Abstract: | Aim at the low data rate and poor bandwidth efficiency of DS-CDMA used in traditional SMA multi-access servings of TDRSS, a substituted scheme adopting MC-CDMA was put forward. Some sticking points of MC-CDMA used in TDRSS and the corresponding solutions were presented in this paper. Study shows that MC-CDMA has completely applicability in TDRSS and has the advantage of high data rate and ideal bandwidth efficiency and can remarkably improve the data transmission performance of TDRSS. |
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| Keywords: | TDRSS DS-CDMA MC-CDMA SMA |
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