基于FPGA的卫星通信信道编码设计与工程实现

发布时间：2018-03-24 23:01

本文选题：FPGA　切入点：Modelsim　出处：《河北科技大学》2015年硕士论文

【摘要】：信道编码是数据通信系统的重要组成部分,是将信息从信源端可靠地传输到信宿端的主要技术和方法。由于FPGA硬件设计的成熟、技术的发展,和其内部资源更加丰富,使得开发数字电路的成本逐步的降低,开发手段越来越多样,使用方法越来越灵活,故在FPGA的平台上实现信道编码已经成为现实的需求。首先,搭建了系统平台的总体结构框架,论证了采用FPGA平台的必要性和可行性;然后,完成了使用Verilog语言编写的FPGA程序;最后,搭建了FPGA的modelsim仿真平台,在仿真平台上验证了程序的功能和时序逻辑。课题立足实际需求,参与设计并实现了一款基于FPGA的数据采集平台,该平台的主要功能为:接收中央处理模块发送的采集信息数据,对数据进行编码和调制,按照预先设定好的信道发送给卫星;接收中央处理模块发送的配置参数信息;发送通信模块自身的配置参数信息,根据要求发送返回给中央处理器模块。该平台主要布设在高山、海岛等环境恶劣、人烟稀少等无人地区。针对无人值守的环境下,需要系统可以实现各种编码结构之间的串行连接。课题主要研究如何在平台上设计和实现信道编码。在信道编码的部分重点研究了BCH编码、卷积编码以及RS编码,并使用MATLAB对设计的编码逻辑进行了仿真,通过MATLAB的仿真验证所编码逻辑的正确性。
[Abstract]:Channel coding is an important part of data communication system. It is the main technology and method to transfer information reliably from the source to the receiver. Due to the maturity of FPGA hardware design, the development of technology, and the abundance of its internal resources, channel coding is the most important part of data communication system. The cost of developing digital circuits has been gradually reduced, the means of development have become more and more diverse, and the methods of use have become more and more flexible, so the implementation of channel coding on the platform of FPGA has become a real demand. The overall framework of the system platform is built, and the necessity and feasibility of using FPGA platform are demonstrated. Then, the FPGA program written in Verilog language is completed. Finally, the modelsim simulation platform of FPGA is built. The function and timing logic of the program are verified on the simulation platform. The subject is based on the actual demand and participates in the design and implementation of a data acquisition platform based on FPGA. The main functions of the platform are as follows: receiving the collected information data sent by the central processing module, encoding and modulating the data, sending the data to the satellite according to the pre-set channel, receiving the configuration parameter information sent by the central processing module; Send the configuration parameter information of the communication module itself and send it back to the central processor module according to the request. The platform is mainly arranged in the uninhabited areas such as mountains, islands, etc. It is necessary for the system to realize the serial connection between various coding structures. This paper mainly studies how to design and implement channel coding on the platform. In the part of channel coding, it focuses on BCH coding, convolutional coding and RS coding. The designed coding logic is simulated with MATLAB, and the correctness of the coded logic is verified by the simulation of MATLAB.
【学位授予单位】：河北科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN791;TN927.2

【参考文献】