【作者】 姜忠福；

【导师】 朱晓明；

【作者基本信息】 西安电子科技大学 ， 通信与信息系统， 2011， 硕士

【摘要】 本文研究内容源自科研课题“短波宽带扩频技术研究”,该课题的研究目标是设计并在硬件平台上实现短波宽带扩频突发数据传输系统,本文研究基于Xilinx器件的短波扩频通信系统的FPGA设计与实现。本文首先介绍了扩频基础理论,给出了本扩频通信系统设计方案和实现框图;其次,根据系统中各个环节的算法设计,采用自顶向下的方法对整个系统进行模块划分,并对每个模块进行了理论研究,给出了具体的FPGA实现方法和部分功能仿真波形;最后,介绍了系统的硬件描述语言Verilog HDL,在以Xilinx Spartan芯片为核心的硬件平台上进行了系统测试,时序分析结果表明本系统符合时序要求,利用ChipScope Pro测得抓取到的收发数据一致,验证了整个扩频通信系统设计的正确性。更多还原

【Abstract】 The research of this thesis is derived from a project named as“The Research on Wideband HF Spread Spectrum Technology”. The goal of this project is to design and implement the wideband HF burst data transmission system on the hardware platform with making use of spread spectrum method. This thesis lays emphasis on the design and implementation of this HF spread spectrum communication system based on the Xilinx chip.Firstly, the basic theory of spread spectrum communication is introduced, and then taking into consideration of the requirements of technical target, the implementation scheme of this system is designed, including the transmitting part and the receiving part. Secondly, the system is divided into several modules with the Top-Down method according to different characteristics of algorithm of each module. Detailed block diagram of structures and simulation waves are given based on the principle of the HF spread spectrum communication system. Finally, after timing analysis the system is tested in the hardware electric circuit whose core is Xilinx Spartan chip using Verilog HDL, and the received data captured by ChipScope Pro is the same as the transmitted data, verifying the correctness of the spread spectrum system.更多还原