| xMax的类正弦波调制技术 |
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| 引用本文： | 赵成仕,王树彬,杨程,KWAK Kyung Sup,周正.xMax的类正弦波调制技术[J].北京邮电大学学报,2007,29(6):111-115. |
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| 作者姓名： | 赵成仕 王树彬 杨程 KWAK Kyung Sup 周正 |
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| 作者单位： | (1. 北京邮电大学 无线网络实验室, 北京 100876; 2. 北京邮电大学 泛网无线通信教育部重点实验室，北京 100876; 3. 仁荷大学 UWB无线研究中心，仁川 402-751, 韩国) |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研项目，韩国仁荷大学校科研和教改项目，北京邮电大学校科研和教改项目 |
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| 摘 要： | 通过对xMax技术指标的分析，阐述了实现xMax的方法。在此基础上提出了一种能实现xMax的类正弦波调制技术。该调制技术通过对类正弦波信号的单周期调制实现信号对信息的携带；并且能达到xMax主带宽窄、边带功率谱密度低、发射功率低、传输速率高等性能指标。通过理论分析和仿真验证，该调制技术功率谱主峰值带宽为300 kHz，边带功率谱密度比峰值功率谱低40 dB，使得边带能很好地隐藏在背景噪声中，传输速率达到7.5 Mbit/s。
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| 关 键 词： | xMax 调制技术 类正弦波 |
| 文章编号： | 1007-5321（2007）06-0111-05 |
| 收稿时间： | 2007-03-27 |
| 修稿时间： | 2007年3月27日 |
A Sine-Like Wave Modulation Technique of xMax |
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| ZHAO Cheng-shi,WANG Shu-bin,YANG Cheng,KWAK Kyung Sup,ZHOU Zheng.A Sine-Like Wave Modulation Technique of xMax[J].Journal of Beijing University of Posts and Telecommunications,2007,29(6):111-115. |
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| Authors: | ZHAO Cheng-shi WANG Shu-bin YANG Cheng KWAK Kyung Sup ZHOU Zheng |
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| Affiliation: | (1. Wireless Network Laboratory, Beijing University of Posts and Telecommunications, Beijing 100876, China; 2.Key Lab of Universal Wireless Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China; 3. Ultra Wideband Wireless Research Center, Inha University, Inchon 402-751, Korea) |
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| Abstract: | Through the specification analysis of xMax technique, a realization method of xMax is elaborated. On this basis, a new method to realize the xMax by the way of sine-like wave modulation is proposed, This modulation technique realizes the information carrying through the method of single cyclical modulation to a kind of sine-like wave signal. The technique can achieve the xMax requirements of narrow bandwidth, low sideband power spectral density, extremely low emissive power and high transmission speed. Analysis and simulation show that the bandwidth of peak power spectrum is 300 kHz, the sideband power spectral density is 40 dB lower than peak value of power spectrum density, which enables the sideband to be able to hide well in the background noise; and transmission speed may be achieved to 7.5 Mbit/s. |
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| Keywords: | xMax |
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