Advanced Search
Volume 28 Issue 7
Jan.  2011
Turn off MathJax
Article Contents
Hao CHEN, Guang LI, Yang LIU, Yongqian QIANG. A Glioma Detection and Segmentation Method in MR Imaging[J]. Journal of Electronics & Information Technology, 2021, 43(4): 992-1002. doi: 10.11999/JEIT200033
Citation: Jian Wei, Shen Yue-hong, Li Yi. Pulse-Shaping Based on Generalized Gabor Transform for Optimal LOFDM System[J]. Journal of Electronics & Information Technology, 2006, 28(7): 1274-1278.

Pulse-Shaping Based on Generalized Gabor Transform for Optimal LOFDM System

  • Received Date: 2004-11-15
  • Rev Recd Date: 2005-03-28
  • Publish Date: 2006-07-19
  • Lattice Orthogonal Frequency Division Multiplexing(LOFDM) is a promising technique for high data-rate transmission in double(namely time-frequency) dispersive channel. But, as pulse shaping filters of LOFDM system is badly-localized, it is certainty that ISI and/or ICI be introduced. Therefore, design of pulse shaping filters is an important task for design of optimal LOFDM system. Currently, Strohmer and Beaver(2001, 2003) present an approach to design of pulse shaping filters for optimal LOFDM systems, but, it is computatively complex. In this paper, a generalized Gabor transform is proposed. Utilizing an approach of attained generalized tight Gabor atoms, the time-frequency well-localized pulse shaping filters can be designed for optimal LOFDM system. It is showed through theory analysis and simulative experiment that this method is more efficient and simpler than that of Strohmer and Beaver(2001, 2003).
  • Strohmer T, Beaver S. Optimal OFDM system design through optimal sphere coverings. Proc. IEEE Int. Conf. Acoustic, Speech, and Signal Processing 2001, Salt Lake city, USA, 2001, 4: 23732376. .[2]Strohmer T, Beaver S. Optimal OFDM design for time.frequency dispersive channels. IEEE Trans. on Commun., 2003, 51(7): 11111122..[3]Bolcskei H. Efficient design of pulse shaping filters for OFDM systems. SPIE Proc. 1999, Denver USA, July 1999, Vol.3813: 625636. .[4]Bolcskei H. Orthogonal frequency division multiplexing based on offset QAM, in Advances in Gabor Analysis, Feichtinger H G, Strohmer T. Boston: Birkhauser, 2002, Ch12.[5]Bolcskei H, Duhamel P, Hleiss R. Design of pulse shaping OFDM/OQAM systems for high data-rate transmission over wireless channels. IEEE International Conference on Communications乫99, Vancouver, Canada, July 1999, vol.1: 559564. .[6]Feichtinger H G, Strobmer T. Gabor Analysis and Algorithms. Boston: Birkhauser, 1998丗Ch1, Ch 8.[7]Qiu Sigang. The undersampled discrete Gabor transform. IEEE Trans. on Signal Processing, 1998, 46(5) : 12211228. .[8].... 旕暯.怣崋暘愅梌.棟. 杒嫗丗崙杊岺.弌斉幮丆1998, 戞2, 4復.[9]墹岹鈀. 旕暯.悘婘怣崋暘愅梌.棟. 杒嫗丗崙杊岺.弌斉幮丆1999, 戞1, 4復.[10]Janssen A J E M, Strohmer T. Characterization and computation of canonical tight windows for Gabor frames[J].J. Fourier. Anal. Appl.2002, 8(1):1-[11]Qiu sigang, Feichtinger H G. Discrete Gabor structures and optical representations[J].IEEE Trans. on Signal Processing.1995, 43(10):2258-
  • Cited by

    Periodical cited type(4)

    1. 许跃根,郑顺勇. 动态增强MR联合酰胺质子转移成像检测对脑肿瘤诊断及分级的临床价值. 医疗装备. 2024(19): 1-4+9 .
    2. 全美霖,刘奇,陈曦,邓小波,何柯辰,刘艳丽. 改进测地线活动轮廓模型在肾脏CT图像分割中的应用. 中国组织工程研究. 2023(02): 171-176 .
    3. 邹利华,吉珊珊. 基于注意力空洞U-Net的MRI图像分割方法. 光学技术. 2022(05): 634-640 .
    4. 杜新彦. 基于小波变换和残差网络的磁共振影像分割方法. 光学技术. 2021(02): 250-256 .

    Other cited types(0)

  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (2298) PDF downloads(1044) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return