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本文通过对现行民用明码电报4000份报文的数据统计.找出明码电报中各十进制数字出现的概率,并结合汉字电报所采用的保护电码(恒比码)的编码原理,从差错控制的角度对误字率进行分析,并得出十进制数字出现的百分率与误字率的数学关系式,提出一些改进措施,力图降低误字率,在差错控制方面作一些尝试.
In this paper, the statistics of the current 4,000 telegrams of civil plaintext are collected to find out the probability of the occurrence of each decimal digit in the plaintext telegram. Based on the coding principle of the protection codes (constant-ratio codes) Analyzed the mistranslation rate and got the mathematics relation between the percentages and the error rate of the decimal numbers. Some improvement measures were put forward in order to reduce the error rate and make some attempts on error control.