Noise

In common use, the word noise means unwanted sound or noise pollution. In electronics noise can refer to the electronic signal corresponding to acoustic noise (in an audio system) or the electronic signal corresponding to the (visual) noise commonly seen as 'snow' on a degraded television or video image. In signal processing or computing it can be considered data without meaning; that is, data that is not being used to transmit a signal, but is simply produced as an unwanted by-product of other activities. In Information Theory, however, noise is still considered to be information. In a broader sense, film grain or even advertisements in web pages can be considered noise.

Klappentext

In common use, the word noise means unwanted sound ornoise pollution. In electronics noise can refer to theelectronic signal corresponding to acoustic noise (in an audiosystem) or the electronic signal corresponding to the (visual) noise commonly seen as 'snow' on a degradedtelevision or video image. In signal processing or computing it can be considered data without meaning; that is, data thatis not being used to transmit a signal, but is simplyproduced as an unwanted by-product of other activities. InInformation Theory, however, noise is still considered to be information. In a broader sense, film grain or even advertisements in web pages can be considered noise.