【摘要】 简要介绍了两种典型的一维扩频技术,即DS-CDMA和MC-CDMA,在此基础上重点分析了一种新的扩频技术,即二维扩频技术。文中对基于这一技术的多载波二维码分多址系统的接收机和发射机作了较为详细的讨论。更多还原

【Abstract】 Two typical kinds of one-dimensional spread spectrum technology, i.e. DS-CDMA and MC-CDMA, are simply presented in this paper. Based on the previous analysis, this paper focuses on the introduction of a novel spread spectrum technology, i.e. two-dimensional spread spectrum technology. And also it provides a detailed discussion of the transmitter and receiver of a multicarrier two-dimensional CDMA system that integrates this technology.更多还原