释义 |
biternary coding 双三进制编码法 The conversion of a unipolar binary signal into a three-level pseudoternary signal by digital integration, i.e. by taking pairs of symbols in succession and adding their analogue values. The same result can be closely approached by passing the signal through a suitable filter whose rise time is greater than one bit period. Hence biternary coding is a digital equivalent of a form of partial response coding. 通过数字积分将单极二元信号转换为三种电平的伪三元信号的编码方法,即取出一对相邻 的信号并加入其模拟值。把该信号通过其上升时间大于一位周期的滤波器,可以得到极为近 似的相同结果。因此,双三进制编码法与部分响应编码法具有相同数字形式。 |