What Is a Burst Error?

Burst error refers to a special error that occurs in series during data transmission. Most of the causes of this error are poor contact of the transmission line, malfunction of the relay or lightning interference.

Burst error refers to a special error that occurs in series during data transmission. Most of the causes of this error are poor contact of the transmission line, malfunction of the relay or lightning interference.

In most practical communication channels, the errors caused by interference are often in series. In wireless channels, fast fading interference in variable parameter channels, and in wired and cable channels, lightning and artificial electrical pulses interfere, making short waves and scattering 2. The errors generated in the wired channel are sudden; several defects in the magnetic recording will bring a series of errors, most of which are also sudden. Generally speaking, channel coding to correct random independent errors to correct burst errors is not effective. Therefore, it is necessary to design a type of code specifically used to correct burst errors. Such codes are called burst error correction codes.

There are two main forms of errors in error patterns: random errors and sudden errors.

A burst error of length l is defined for the error pattern: if the non-zero component of a vector is limited to l consecutive data bits and its first and last bits are non-zero elements, the vector is defined as a Burst errors of length l.

For a binary word of length n, its burst length

The total number of words is'

When the code length n and the burst error capability are given, it is desirable that the (n, k) code constructed is as small as possible.

For burst error correction, either block codes or convolutional codes can be used. In block codes, cyclic codes are not only effective for detecting burst errors, but also effective for correcting burst errors.