Digital coding principles
Recording and communication are quite different tasks, but they have a great deal in common. Digital transmission consists of converting data into a waveform suitable for the path along which they are to be sent. Digital recording is basically the process of recording a digital transmission waveform on a suitable medium. In this chapter the fundamentals of digital recording and transmission are introduced along with descriptions of the coding and error-correction techniques used in practical applications.
Data can be recorded on many different media and conveyed using many forms of transmission. The generic term for the path down which the information is sent is the channel. In a transmission ...