| 星间链路新型信号体制设计 |
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| 引用本文： | 何善宝,林益明,吴乐南,冯熳,王平,陈忠贵,谢军.星间链路新型信号体制设计[J].中国空间科学技术,2011,31(4). |
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| 作者姓名： | 何善宝 林益明 吴乐南 冯熳 王平 陈忠贵 谢军 |
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| 作者单位： | 1. 北京空间飞行器总体设计部,北京,100094
2. 东南大学信息科学与工程学院,南京,210096 |
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| 摘 要： | 从信息理论基础和通信技术源头开展创新,将高频谱效率的扩展二进制相移键控调制波形、极大提升解调前信噪比的数字冲击滤波器、自适应锁相解调方法和进一步提升解调性能的波形参数匹配技术有机融为一种全新而独特的高效通用调制解调体制,并结合导航星座星间链路的要求进行仿真.结果表明其特定信噪比下单位带宽可传输的信息速率bit/s/Hz/SNR(Signal Noise Ratio)综合指标显著超过现有对比技术,且码率、带宽和信噪比可与空间环境自适应.
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| 关 键 词： | 超窄带调制 信号体制 星间链路 导航 卫星 |
Design of New Signal System for Inter-satellite Links |
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| He Shanbao,Lin Yiming,Wu Lenan,Feng Man,Wang Ping,Chen Zhonggui,Xie Jun.Design of New Signal System for Inter-satellite Links[J].Chinese Space Science and Technology,2011,31(4). |
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| Authors: | He Shanbao Lin Yiming Wu Lenan Feng Man Wang Ping Chen Zhonggui Xie Jun |
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| Institution: | He Shanbao1 Lin Yiming1 Wu Lenan2 Feng Man2 Wang Ping1Chen Zhonggui1 Xie Jun1(1 Beijing Institute of Spacecraft System Engineering,Beijing 100094)(2 School of Information Science & Engineering,Southeast University,Nanjing 210096) |
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| Abstract: | A novel,special and highly efficient modulation system was proposed,which combined harmoniously EBPSK(Extended BPSK) modulation,digital impulsion filter,adaptive demodulation method and parameter-matching technology.The signal system of GNSS ISLs with novel modulation and demodulation was simulated and analyzed.The results show that the integrated index(bit/s/Hz/SNR) of the new signal system outperforms other present systems.And many important parameters of the new signal system,such as rate,band-width and ... |
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| Keywords: | Ultra narrow band modulation Signal system Inter-satellite links Navigation Satellite |
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