【摘要】 通过改进IFDR码,提出一种基于游程相等编码的改进FDR(ERFDR)方法.首先,该方法不仅能同时对原测试集的0游程和1游程进行编码,而且,当相邻游程相等时还可以用较短的码字来代替,从而进一步提高了压缩率.其次,还提出针对该压缩方法的测试集无关位填充算法,增强提出方法的压缩效果.实验结果表明,与FDR,EFDR,IFDR和ERLC相比较,本文提出的方法获得了更高的压缩率,降低了测试费用.更多还原

【Abstract】 Based on equal runlength code and IFDR,a new coding method(called ERFDR)was proposed.Firstly,the proposed method can not only encode both 0and 1runs for a test set simultaneously,but also can use shorter code if the adjacent runlengths are equal.Therefore,the compression ratio can be further improved.This paper also put forward a new filling algorithm for a test set with don’t care bits,which can enhance the compression efficiency of the proposed method.Experimental results show that the proposed method can obtain a higher compression rate compared with FDR,EFDR,IFDR and ERLC codes.The test cost can be reduced effectively.更多还原