| 引用本文: | 孟繁宇,顾学迈,郭庆.一种非线性chirp扩频的高效多址接入技术[J].哈尔滨工业大学学报,2012,44(1):47.DOI:10.11918/j.issn.0367-6234.2012.01.010 |
| MENG Fan-yu,GU Xue-mai,GUO Qing.An efficient multiple access technique using non-linear chirp signal[J].Journal of Harbin Institute of Technology,2012,44(1):47.DOI:10.11918/j.issn.0367-6234.2012.01.010 |
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| 摘要: |
| 为提高基于chirp调制技术的无线通信系统的多址接入能力,提出一种基于非线性chirp扩频的高效多址接入技术.该技术利用chirp扩频的独特技术优势以及非线性chirp信号自身的特性来抑制MAI.仿真结果显示,这一新的多址接入技术可以容纳较多的用户同时接入,而不明显降低系统的误码率性能,与现有的利用chirp扩频的多址接入技术相比较,本文提出的新技术在同样条件下具有更好的BER性能. |
| 关键词: chirp扩频 多址接入 非线性chirp信号 MAI |
| DOI：10.11918/j.issn.0367-6234.2012.01.010 |
| 分类号:TN914.42 |
| 基金项目:国家基础研究重大项目资助(2009ZX03005) |
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| An efficient multiple access technique using non-linear chirp signal |
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MENG Fan-yu, GU Xue-mai, GUO Qing
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Communication Research Center,Harbin Institute of Technology,150001 Harbin,China
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| Abstract: |
| This paper presents an efficient multiple access technique using non-linear chirp signal to enhance the multiple access capacity of a chirp modulation communication system.It makes use of the unique advantages of chirp spread spectrum and the characters of non-linear chirp signals to suppress the multiple access interference(MAI).Simulation results show that this new technique can allow a larger number of users without an obvious degradation in performance which is important for multiple access.Compared with exiting techniques,the new one also has a lower BER under the same conditions. |
| Key words: chirp spread spectrum multiple access non-linear chirp signal MAI |
