Coding theory
Videos
Coding theory is the study of the properties of codes and their respective fitness for specific applications. Codes are used for data compression, cryptography, error detection and correction, data tr
A two-dimensional visualisation of the Hamming distance, a critical measure in coding theory
In information theory and coding theory with applications in computer science and telecommunications, error detection and correction or error control are techniques that enable reliable delivery of di
Coding theory
…is the study of the properties of codes and their respective fitness for specific applications. Codes are used for data compression, cryptography, error detection and correction, data transmission and data storage. Codes are studied by various scientific disciplines—such as information theory, electrical engineering, mathematics…
To clean up transmission errors introduced by Earth's atmosphere (left), Goddard scientists applied Reed–Solomon error correction (right), which is commonly used in CDs and DVDs. Typical errors include missing pixels (white) and false signals (black). The white stripe indicates a brief period when transmission was interrupted.
A telegram from 1896 reporting astronomical observations of two comets. The random words represent numbers, taken from a predefined list, in order to prevent transcription errors during transmission.