星座旋转映射的二维信息传输方法  

Two-Dimensional Data Transmission Method with Constellation Rotation Mapping

作　　者：刘芳[1] 陈立志 牟琳 冯永新[1] LIU Fang;CHEN Lizhi;MU Lin;FENG Yongxin(School of Information Science and Engineering,Shenyang Ligong University,Shenyang 110159,China)

机构地区：[1]沈阳理工大学信息科学与工程学院,沈阳110159

出　　处：《数据采集与处理》2023年第6期1331-1341,共11页Journal of Data Acquisition and Processing

基　　金：国家自然科学基金(61971291)。

摘　　要：为增加直接序列扩频(Direct sequence spread spectrum,DSSS)系统每秒传输二进制信息的位数,增强信息传输的保密性,建立映射传输机制,提出星座旋转映射的二维信息映射传输方法。在传输一维信息的同时,附加二维信息,利用进制转换与星座图的旋转建立关系模型。通过一维信息与二维信息的传输速率之比选定星座图,进而通过星座旋转映射将二维信息转换为映射信息,获得相应的伪码通道,传输一维信息,同时对二维信息进行映射传输。通过仿真平台测试分析表明,星座旋转映射的二维直扩传输方法与传统直接序列扩频系统相比,能够获得更高的信息传输速率,具有更好的误码性能,能够满足更好保密性能的需求。In order to increase the bits of binary data transmitted per second in direct sequence spread spectrum(DSSS)systems and enhance the security of information transmission,a mapping transmission mechanism is established,and a two-dimensional data transmission method with constellation rotation mapping is proposed.As the one-dimensional data is transmitted,the two-dimensional data is added,and the relationship model is established by using the M-ary conversion and constellation rotation.The constellation is selected according to the ratio between one-dimensional data rate and two-dimensional data rate,and then the two-dimensional data is converted into mapping data by constellation rotation mapping,so as to obtain the corresponding pseudo-code channel and achieve the transmission of one-dimensional data and the mapping transmission of two-dimensional data.The simulation results show that compared with the traditional DSSS system,the two-dimensional data transmission method with constellation rotation mapping can obtain higher data transmission rate and better error code rate performance,as well as meet the requirements of better confidentiality performance.

关 键 词：直接序列扩频 进制转换 星座旋转映射 二维信息 动态选码 

分 类 号：TN914[电子电信—通信与信息系统]