| 双多进制正交扩频在HF低速通信中的应用 |
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| 引用本文： | 康弘俊,邓永洋,罗磊. 双多进制正交扩频在HF低速通信中的应用[J]. 通信技术, 2012, 45(8): 19-21 |
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| 作者姓名： | 康弘俊 邓永洋 罗磊 |
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| 作者单位： | 中国电子科技集团公司第三十研究所,四川成都,610041 |
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| 摘 要： | 双多进制正交扩频(Dual M-ary Orthogonal Spread Spectrum)技术是一种高频谱效率的扩频技术,而短波通信在通信领域具有其他通信手段无法替代的地位。阐述了双多进制正交扩频系统的基本原理,介绍了美军现役短波调制解调器标准MIL-STD-188-110B中的低速串行75 b/s波形。设计了基于双多进制扩频技术的短波低速改进波形,并与美军标MIL-STD-188-110B中的低速串行75 b/s波形进行了对比仿真。仿真结果表明,与美军标波形相比,改进波形的BER性能在AWGN信道及衰落信道下均有明显提升。
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| 关 键 词： | 双多进制正交扩频 短波 调制解调器 |
Application of Dual M-ary Orthogonal Spread Spectrum in HF Communication System |
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| KANG Hong-jun , DENG Yong-yang , LUO Lei. Application of Dual M-ary Orthogonal Spread Spectrum in HF Communication System[J]. Communications Technology, 2012, 45(8): 19-21 |
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| Authors: | KANG Hong-jun DENG Yong-yang LUO Lei |
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| Affiliation: | (N0.30 Institute of CETC,Chengdu Sichuan 610041,China) |
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| Abstract: | Dual M-ary Orthogonal Spread Spectrum is a spetrum-spreading technology high spectrum efficiency,while HF（High Frequency） communication plays an important role in the field of communications.This paper describes basic principles of Dual M-ary Orthogonal Spread Spectrum system,and gives low data-rate 75 b/s waveforms in MIL-STD-188-110B of US active military specification.A HF low rate-data waveform based on Dual M-ary Orthogonal Spread Spectrum is proposed and designed,and simulation and comparison on the proposed waveforms and the low data-rate 75 b/s waveform in MIL-STD-188-110B indicate that the BER performance of the improved waveform is much better than that of MS 110B 75 b/s waveform in AWGN and fading channels. |
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| Keywords: | Dual M-ary Orthogonal Spread Spectrum HF Modem |
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