【作者】 邓伍华；

【导师】 杨晓冬；

【作者基本信息】 哈尔滨工程大学 ， 通信与信息系统， 2007， 硕士

【摘要】 软件无线电是20世纪90年代兴起的，一种充分结合软件和硬件优势的新技术。由于它能很好的解决无线通信产品由于快速的升级换代而导致原有的以硬件为主的无线电通信系统难以适应其发展的难题，以及由于多种通信体制并存、结构不同和遵循不同的通信协议而导致的各系统之间的互联困难，因此，软件无线电成为新的第三代移动通信系统3G(3rd Generation)的关键技术之一，也是未来无线电通信的发展方向。本论文研究近年来最为关注的一种软件无线电结构，即交换网络结构。并提出了一种改进的交换网络结构即复合式交换网络结构，复合式交换网络结构引进ADSP SHARC处理系统，在交换网络平台中包含DSP(TI)和ADSP两种处理器，它具有更高实时处理能力、更高的网络数据传输效率以及系统的并行效率。论文深入的探讨了软件无线电常用的几种结构构成及性能，通过比较得出交换网络结构更适合软件无线电的设计思想；在原有的交换网络基础上，提出一种改进结构，通过软件仿真，得出了它们的性能参数；论文最后分析了交换网络结构中的核心器件网络适配器的硬件设计原理和ADSP SHARC接入网络的硬件设计原理以及ADSP SHARC部分的网络协议。更多还原

【Abstract】 Software radio is a new technique that combines software with hardware and rose in the nineties of the twentieth century. It can well solve the problem that the radio communication system based on hardware can’t suitably develop because of the fast update of the radio communication product, and the difficulty in mutual connect between many kinds of communication system and different kinds of communication protocols. So software radio has become one of the key techniques in the third generation communication system.This paper did research in a most famous software radio structure in recent years, it is called exchange network structure, and provided an improved exchange network structure-compound exchange network structure. It adopts ADSP SHARC disposal system and includes two processors such as DSP (TI) and ADSP in the exchange network platform. It has better ability of real time disposal and efficiency of network data transmission and parallel system.This paper discussed some common structure and capability of software radio. By comparison we obtained that exchange network structure was more suitable for the design idea of software radio. We provided an improved structure based on exchange network structure. Meanwhile by software simulation we obtained its parameters. At last, the paper analyzed the kernel device of exchange network structure-the network adapter’s design principle and ADSP SHARC connection into the network and some network protocols of ADSP SHARC.更多还原