摘要
本文提出了TDD扩频E1无线Modem总体设计方案，详细地论述了TDD协议和基带扩频模块的设计方案。论文在对HFA3860B进行深入研究的基础上，对芯片所采用的高速扩频技术—MBOK扩频技术进行了理论探讨，并成功地将其用于E1数据的无线扩频透明传输，实现了系统要求，并且拓宽了芯片的应用范围。课题设计的模块通过环路测试，性能良好。
In this paper,a complete scheme is proposed for El Wireless Spread Spectrum Modem in TDD mode. Firstly,it discusses TDD protocols and base band module. Secondly,with in-depth ananysis on HFA3860B and its high speed spread spectrum technology(MBOK),we incorporates the chip for continuous and transparent transmission of El data successfully. Finally,the simulation and circuit test show that the proposed scheme works well with good performance.
引文
[1] 张厥盛，锁相技术，西安电子科技大学出版社
[2] 肖定中，数字通信终端及复接设备
[3] 孙涵芳，单片机原理及应用，北京航空航天大学出版社
[4] 查光明，扩频通信，西安电子科技大学出版社
[5] 宋万杰，CPLD技术及其应用，西安电子科技大学出版社
[6] J.K.霍姆斯，相干扩展频谱系统，国防工业出版社
[7] Jim Geier，无线局域网，人民邮电出版社
[8] Winbond, Direct Sequence Spread Spectrum Transceiver
[9] Intersil, Direct Sequence Spread Spectrum Baseband Processor
[10] Intersil, HFA3860B Datasheet
[11] Intersil, A 2.4GHz 11Mbps Baseband Processor for 802.11 Applications
[12] Danny Mok, Asynchronous vs Synchronous Circuit Design
[13] Danny Mok, Design of Combinational Circuit
[14] Danny Mok, Multiple Clock System Design
[15] Altera, APEX 20K Programmable Logic Device Family