VWDK调制真的可实现吗？

徐淑正; 张鑫

doi:10.3724/SP.J.1146.2008.01026

VWDK调制真的可实现吗？

doi: 10.3724/SP.J.1146.2008.01026

徐淑正,
张鑫

基金项目:

国家自然科学基金(90707002)，清华大学电子工程系基础研究基金(110109001)和信息科学与技术国家实验室基础研究基金资助课题

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出版历程
- 收稿日期: 2008-08-27
- 修回日期: 2008-12-29
- 刊出日期: 2009-08-19

VWDK: Just an illusion?

摘要

摘要: 为验证VWDK调制方式高频谱利用率特性，该文先介绍了VWDK调制的基本概念，然后对其调制与解调的进行了仿真验证，仿真结果证明其超窄带并不是通常意义下的窄带传输。进而又从理论推导得到该种调制方式的功率谱，并对其功率谱的能量分布进行了分析，对其高效频谱利用率提出了质疑。
- 无线通信;甚小波形差调制;功率谱;频谱利用率
Abstract: To verify the high spectral efficiency of VWDK, the principle of the modulation is introduced in detail. The simulation results of VWDK modulation and demodulation confirm that UNB is not what is generally called. Moreover, through calculating the analytic formula of its power spectrum, and analyzing the distribution of its spectra power, the so called high spectral efficiency of VWDK is just an illusion.

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参考文献(1)

Walker H R. VPSK and WMSK modulation transmits audioand video at 15 b/s/Hz[J].IEEE Trans. on Broadcasting.1997, 43(1):96-103[2]Tomazics S. Comments on spectral efficiency of VMSK[J].IEEE Trans. on Broadcasting.2002, 48(1):61-62[3]陈晓毅, 姚庆栋, 刘小成. 高效调制的错觉[J].电子与信息学报.2003, 25(11):1558-1563浏览[4]Shi Zhi yong, Huang Jian ming, and Zhang Zhen yu. Analyzeand comment on spectral Efficiency of VMSK modulation[C].In Proc. of IEEE WiCOM, Wuhan, China, 22-24 Sept. 2006:1-4.[5]李小平. VWDK调制技术的研究[D]. [博士论文], 东南大学,2006, 6.Li Xiao-ping. Study on the technique of VWDK modulation[D]. [Ph.D. dissertation], Southeast University, 2006, 6.[6]吴乐南. 超窄带高速通信进展[J]. 自然科学进展, 2007, 17(11):1467-1473.Wu Le-nan. The evolution of ultra-narrow band and highspeed communications[J]. Progress in Nature Science, 2007,17(11): 1467-1473.[7]杨东凯, 吴华森, 张其善. AWGN信道中超窄带调制VMSK的最佳解调性能[J]. 通信学报, 2008, 29(5): 128-132.Yang Dong-kai, Wu Hua-shen, and Zhang Qi-shan. Bestperformance of the UNB modulation VMSK in AWGNchannel[J]. Journal on Communications, 2008, 29(5):128-132.[8]曹志刚, 钱亚生. 现代通信原理[M]. 北京: 清华大学出版社,2006: 212, 252-312.Cao Zhi-gang and Qian Ya-sheng. The Principles of ModernCommunications[M]. Beijing: Tsinghua University Press,2006: 212, 252-312.[9]司宏伟. 超窄带_UNB_通信可行性及VWDK研究[D]. [硕士论文], 东南大学, 2005-3.Si Hong-wei. Research on the realizability of UNBcommunications and VWDK[D]. [Master dissertation],Southeast University, 2005-3.

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