将本页翻译成中文
您现在的位置:首页> 外文会议>Conference on Advanced Signal Processing Algorithms, Architectures, and Implementations XIV; 20040804-06; Denver,CO (US) >文献详情
【24h】

Array processing based on the polarization diversity : the example of a ionospheric radio link

【摘要】The aim of this paper is to present a high data rate transmission system through the ionospheric channel in the HF band (3-30 MHz). The applications expected in this study are image transmission and real-time videoconferencing. Very high rates are required compared to the standard modems (4.8 kbits/s). Therefore, an array processing performs in the multi channel receiving system. Its main originality stands in the development of a compact device of collocated antennas, the spatial responses of which are different one from each other. Besides, synchronization (Zero Crossing Detector) and spatio temporal equalization (L.M.S. algorithm) as well resort to classical and well-tested techniques involving training sequences. An experimental radio link has been under test with a range of 800 km. The corresponding results underlines the improvement of the bit transfer rate which reaches 20 kbits/s (QAM 16 in a 6 kHz bandwidth) or 30 kbits/s (QAM 16 in a 9 kHz bandwidth). Several transmitted images are presented and appear quite consistent with the original..

【会议名称】 Conference on Advanced Signal Processing Algorithms, Architectures, and Implementations XIV; 20040804-06; Denver,CO (US)

【会议地点】Denver,CO (US)

【作者】Yvon M. Erhel;Clency Perrine;Dominique Lemur;Alain Bourdillon;

【作者单位】Centre de Recherches des Ecoles de Coetquidan 56381 GUER France;

【会议组织】

【会议召开年】2004

【页码】P.455-462

【总页数】8

【原文格式】PDF

【正文语种】eng

【中图分类】TP391;TN911;

【关键词】ionosphere;collocated antennas;spatio temporal equalization;image compression;

联系方式:18141920177 (微信同号)

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号