摘要
在通信和信息处理领域新技术不断发展的推动下，实现大容量、高速率、多业务为目标的无线传输一直受到学术界、工业界和标准化组织的广泛重视。以直接序列扩频／码分多址(DSSS／CDMA)为主流技术的第三代移动通信系统的研究和开发已成为通信领域的热点。
本文围绕高速业务无线传输中的高性能物理信道结构设计、码捕获与跟踪同步技术、载频提取及相干接收技术等问题展开研究。提出了实现多路2.048Mbps数据无线传输的相关关键技术和解决方法。本文提出的许多设计方法、实现方案在课题的实际实施中被证明是正确和可行的，系统调试以及测试结果正说明了这一点。
With the development of new technology in communication and information processing fields, the wireless transmission techniques, which can provide large capacity, high speed and multi-service data transmitting, have received much attention of academe, industrial community and standardization organizations. The third generation mobile communication system has been the focal point of research in communication field, with its key technology - DSSS/CDMA (directing sequence spread spectrum/coded division multiple access).
Some problems of wireless transmission are discussed in the paper, centering on the design of high performance physical channel structure, synchronization technique
(acquisition and tracking) and coherent detection technique. The paper presents the key techniques and solutions to realize multi-channel data transmission on the rate of 2.048Mbps. The design methods and implemention schemes presented or proposed in the paper have been proved to be successful in the system realization by the system debug and the results of system tests.
引文
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