数字通信中增强型六维64PSK调制设计与性能分析  

Design and performance analysis of enhanced six-dimensional 64PSK modulation in digital communications

作　　者：付杰[1] 陈分雄[1] 王典洪[1] 

机构地区：[1]中国地质大学(武汉)机械与电子信息学院,湖北武汉430074

出　　处：《电视技术》2016年第7期90-93,共4页Video Engineering

基　　金：国家自然科学基金项目(61271274)

摘　　要：为了进一步提高数字通信的可靠性,在两个三维8PSK星座图的基础上设计了一种增强型六维64PSK调制格式。相比传统的二维64PSK、64QAM调制格式,在功率归一化的条件下,增强型六维64PSK调制格式的最小欧氏距离(Minimum Euclidean Distance,MED)变得更大,而且能够分别获得21.6 dB和11.8 dB的解调增益。在最大化最小欧氏距离的过程中没有使用重复的算法,因此新方法的计算复杂度较低,这种增强型六维64PSK调制格式非常适合完成一个高可靠性的数字通信系统。In order to improve the reliability of digital communications further, an enhanced six-dimensional 64PSK modulation for- mats which is based on two three-dimensional 8PSK constellations is designed in this paper. Compared with conventional two-di- mensional 64PSK and 64QAM modulation formats, under the power normalization condition, enhanced six-dimensional 64PSK modulation formats have larger minimum Euclidean distance （MED） , and can obtain about 21.6 dB and 11.8 dB demodulation gains respectively. No repetitive algorithm to maximize MED is used so that the new method has a little computational complexity, this enhanced 6D 64PSK modulation format is appropriate for implementing a highly reliable digital communication system.

关 键 词：数字通信 多维调制 最小欧氏距离 

分 类 号：TN911.3[电子电信—通信与信息系统]