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Noise generator : ウィキペディア英語版 | Noise generator
A Noise generator is a circuit that produces electrical noise (i.e., a random signal). Noise generators are used to test signals for measuring noise figure, frequency response, and other parameters. Noise generators are also used for generating random numbers.〔(【引用サイトリンク】url=http://www.worldpowersystems.com/J/million/Sylvania-Tube-Data-1957-6d4-noise-generator.pdf )〕 ==Theory== There are several circuits used for noise generation. For example, temperature-controlled resistors, temperature-limited vacuum diodes, zener diodes, and gas discharge tubes. A source that can be switched on and off ("gated") is beneficial for some test methods. Noise generators usually rely on a fundamental noise process such thermal noise or shot noise.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Noise generator」の詳細全文を読む
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