基于MSP430的莫尔斯报训练装置设计  

Design of Morse Code Training Equipment Based on MSP430

作　　者：杨路刚[1] 陈斌[1] 王永斌[1] 喻莉[2] 

机构地区：[1]海军工程大学电子工程学院,湖北武汉430033 [2]华中科技大学,湖北武汉430074

出　　处：《现代电子技术》2009年第9期8-10,共3页Modern Electronics Technique

基　　金：国家自然科学基金资助项目(60502023);湖北省自然科学基金资助项目(2005ABA254)

摘　　要：为解决以往莫尔斯报训练装置使用不便、真实感差、识别率低等问题,设计一种基于MSP430单片机的新型装置,具有发报、听报训练功能,识别结果可由数码管实时显示或回送电脑,通过预处理电路消抖并产生反馈给操作者的监听音。对原有码识别算法加以改进,采用等距离判定法和递减的修正因子动态计算判定阈值,通过查表法识别码符号,实现了识别速度、准确性和适应性间的平衡。In order to solve the problem of inconvenience of using,inauthentic and low recognition rate,a new equipement based on MSP430 is designed to fullfill telegraph sending and receiving training, the identification result is displayed by LED or transmitted to PC in real - time. The pretreament circuit eliminates the jitter and controlls monitoring sound fed back to operator. The recognition algorithm is improved by using equidistant judging and gradual reducing amendment factor to caculate threshold dynamically, looking- up the ROM table to encode symbol, as a result, equilibrium among identifying speed, accuracy and adaptability is realized.

关 键 词：莫尔斯报 MSP430 点划码 识别算法 

分 类 号：TN917.53[电子电信—通信与信息系统]