【作者】 邓伟；

【导师】 王玲；

【作者基本信息】 湖南大学 ， 电子科学与技术， 2012， 硕士

【摘要】 软件无线电(SDR)是通过一个通用化、标准化和模块化的硬件平台，用软件编程来实现无线电台的特定功能的一种设计思想。软件通信体系结构（SCA）是一个开放性的和独立于具体实现的软件无线电的结构框架。波形(wareform)是SCA系统中通信功能的执行体，因此波形开发在SCA电台中占据非常重要的地位。SCA通过定义各种设备接口来屏蔽底层硬件功能的实现细节，使波形应用开发独立于底层硬件平台的约束。在仔细研究SCA补充规范MHAL的基础上，本论文设计了一种基于DSP的可移植SCA波形组件接口方案。该方案重新设计了MHAL帧格式，同时基于容器和组件模型，设计高性能、规范化的DSP波形组件接口,提高了组件的可移植性和可复用性，从而在很大程度上提高了DSP波形的模块化程度。论文以802.11a协议为基础，对OFDM基带算法做了深入的研究，按照迭代和增量开发的原则，主要设计基带的发射机和接收机模型，包括卷积编码、卷积删余、维特比译码、IFFT/FFT、交织、解交织、插入导频和插入前导序列等组件。最后，在软件无线电平台TechV上，对设计的各个独立的核心组件进行了仿真测试。本文所建模块采用面向对象的C++语言编程，使组件具有良好的通用性和可移植性，能够有效的提高无线通信体系组件的复用程度，为后面的开发者，节省设计成本，缩短开发时间周期。更多还原

【Abstract】 Software Defined Radio (SDR) is a design idea which uses softwareprogramming to achieve of the specific features of the radio,based on a universal,standardized and modular hardware platform.The Software CommunicationsArchitecture (SCA) is an open architecture of the Software Defined Radio (SDR),which is independent of the concrete implementation. Waveform implements thecommunication functions in SCA system, so the waveform development plays a veryimportant role in the process of developing radios based on SCA. SCA through thedefinition of a variety of device interface to shield the implementation details of thehardware features, so that the waveform application development independent of theunderlying hardware platform.In-depth research of the MHAL of SCA supplementary specificartion,this paperdesigned a DSP-based portable SCA waveform component interface program.Theprogram redesigned the MHAL frame format, based on container and componentmodel, we design high-performance, standardized interface to DSP waveformcomponents to improve the portability and reusability of components, which greatlyimprove the modularity of the DSP waveform. the article base on802.11a protocol,in-depth research on OFDM baseband algorithm, in accordance with the principle ofiterative and incremental development, designed baseband transmitter and receivermodels, including the convolution coding, convolutional punctured, viterbi decoder,IFFT/FFT, interleaving and deinterleaving, inserting pilot and inserting preamblesequence components.Finally, in a software radio platform TechV, the simulation tests on the design ofthe individual core components.This builted the module using object-oriented C++programming language, so that the component has good versatility andportability,meanwhile that can effectively improve the soft degree of reuse of thewireless communication system components, saving the cost of design anddevelopment and shorten the time period of the developers.更多还原