摘要
以哈达玛(Hadamard)矩阵为基础,给出一种二维空间相位码的编码方法,分析它的各种性能,并用这种二维空间相位码作为用户的地址码,构成一种新的空间-相位码分多址系统,使光码分多址编解码在空频域内进行,由于对空频域内的信息只作相位调制,大大提高了光传递效率。
An encoding method of two-dimensional spatial-phase code is given on the basis of Hadamard matrix, its performance is analyzed. A new spatial-pha se code-division multiple access system is constructed by means of two-di-mensio nal spatial-phase code matrix. Encoding/decoding of optical code-division multip le access will be implemented in spatial-frequency domain. For phase-only modul ation in spatial-frequency domain, the optical transmission efficiency of the s ystem is highly enhanced.
出处
《光通信技术》
CSCD
北大核心
2003年第5期28-30,共3页
Optical Communication Technology
关键词
光码分多址
哈达玛矩阵
二维空间—相位码
optical code-division multiple access
Hadam ard matrix
two-dimensional spatial-phase code
