Enhanced versions of DCSK and FM-DCSK data transmission systems

被引：0
|
作者：
Kolumbán, G [1 ]
Jákó, Z [1 ]
Kennedy, MP [1 ]
机构：
[1] Tech Univ Budapest, Dept Measurement & Informat Syst, H-1025 Budapest, Hungary
来源：
ISCAS '99: PROCEEDINGS OF THE 1999 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL 4: IMAGE AND VIDEO PROCESSING, MULTIMEDIA, AND COMMUNICATIONS | 1999年
关键词：
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Over the past five years many different modulation schemes have been proposed for chaotic communications. Of these, the DCSK and FM-DCSK techniques offer the best noise performance. However, even the noise performance of these schemes is a few dB worse than that of the conventional noncoherent FSK technique. The paper shows how the noise performance of DCSK and FM-DCSK systems can be improved considerably. Two solutions are considered: in the first version more than one information bit is sent using the same reference signal, while in the second version the received noisy sample functions are cleaned by averaging.
引用
收藏
页码：475 / 478
页数：4
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