基于有限状态机的Morse码识别算法的VHDL实现  

Discerning Algorithm of Morse Code with VHDL Based on Finite State Machine

作　　者：吴琼[1] 张明[1] 田明才 

机构地区：[1]沈阳大学信息学院,辽宁沈阳110044 [2]东软股份有限公司,辽宁沈阳110179

出　　处：《沈阳大学学报》2011年第3期1-3,11,共4页

摘　　要：基于Morse码的基本原理,提出了一种基于有限状态机的Morse码自动识别算法.将电键拍发过程划分为6种状态,利用VHDL硬件描述语言的强大逻辑描述能力,给出了在MAX PlusⅡ开发软件环境下,设计识别Morse码的具体方法和仿真分析结果.算法能根据报务员发报时的码速确定Morse码的判别门限,大大提高了码字识别的准确率.A Morse code automatically discerning algorithm on the finite state machine is put forward based on the basic principles of Morse code.The process of pressing the key is divided into six states.The concrete method and the simulation result is given of designing and identifying Morse code in the MAX PlusⅡdevelopment environment,which take advantage of the powerful logical description ability of the Very-High-Speed Integrate Circuit Hardware Description Language.The judgment threshold of Morse code could be determined according to the code-speed of telegraphic keying,which greatly enhanced the accuracy of the codeword identification.

关 键 词：莫尔斯码 有限状态机 VHDL 码速 

分 类 号：TN917.2[电子电信—通信与信息系统]