Message information may be authenticated with error - control code , message authenticated code and digital signature 報文信息的鑒別認證可采用差錯控制碼、報文鑒別碼與數(shù)字簽名進行。
We analyse the causes of data error during data transmission , compare several error - controlling codes with each other , and point out error - controlling developing trend 摘要分析了數(shù)據(jù)傳輸差錯產(chǎn)生的原因,比較了幾種差錯控制編碼,最后指出了差錯控制未來的研究方向。
Convolutional coding is an error - control coding to process continuous data stream . the viterbi decoding algorithm is a type of maximum likelihood algorithm for memoryless channel . the convolutional coding employed with viterbi decoding algorithm has already become indispensable channel coding scheme in modern communication systems 卷積碼是一種糾錯編碼,它可以對連續(xù)的數(shù)據(jù)流進行處理; viterbi譯碼算法是一種對無記憶信道卷積碼進行譯碼的最大似然譯碼算法,使用viterbi譯碼算法的卷積碼已成為現(xiàn)代通信系統(tǒng)不可缺少的信道編碼方案。