无人机数据链中卷积码研究与FPGA实现  

Study and FPGA Implementation of Convolution Code in UAV Data Link System

作　　者：祁栋升[1] 陈自力[1] 

机构地区：[1]军械工程学院,河北石家庄050003

出　　处：《通信技术》2010年第10期31-32,36,共3页Communications Technology

摘　　要：信道编码是数字通信系统中的重要组成部分,它是保证信号可靠传输的一种重要方式,卷积码以其优越的性能被广泛应用在数字通信系统中。结合无人机信道的特性,研究分析了卷积码的性能特征,选定了适合无人机数据链特性的(2,1,2)卷积码,采用硬件描述语言实现了卷积码编译码器的硬件设计。实验结果表明,在纠错能力范围内,该设计方案能够正确纠错并译码,并且具有较高的译码速率,提高了无人机数据链的通信质量和抗干扰性能。Channel coding is an important component of the digital communication system,and also a way to ensure the transmission reliability.Convolution code,for its excellent performance,is widely used in the digital communication system.This paper,in combination of UAV communication channel,analyzes the performance characteristics of convolution code,and the（2,1,2）convolution suitable for the UAV data link system is chosen.Finally the hardware design of convolution coder and encoder is implemented with Verilog.The simulation result indicates that,this design could correct the error bits exactly within the error-correcting capability,and has the advantage of high-speed decoding.This design scheme improves the communication quality and the anti-jamming capability of the UAV data link system.

关 键 词：无人机信道 卷积码 仿真分析 硬件实现 

分 类 号：TN911.2[电子电信—通信与信息系统]