数字化(digitalization) 将光、声、电、磁等信号转换成数字信号,用于传输与处理的过程。也就是通过模,数转换器将模拟信号转变为数字信号的过程。与模拟信号相比,数字信号在远距离信道内在不同时间间隔内进行放大不会失真,而模拟信号在放大的同时,噪音将相应增大,从而导致失真。另外,将模拟信号转换成二进制编码的数字信号,便于在计算机上操作和处理。 (罡) Digitalization converts light, sound, electricity, magnetism, etc. into digital signals for transmission and processing. That is, through the analog and digital converter analog signal into a digital signal process. Compared with the analog signal, the digital signal in the long-distance channel amplification in different time intervals will not be distorted, while the analog signal amplification at the same time, the noise will be increased accordingly, resulting in distortion. In addition, the analog signal is converted to a binary coded digital signal, easy to operate and process on the computer. (Gang)