31-12-2009, 05:51 PM
Frequency shift keying FSK.doc (Size: 43 KB / Downloads: 222)
Abstract:
frequency shift keying (FSK) is a method for representing digital data with analog signals by using a change in the frequency of the carrier to represent information. It is thus a type of modulation. FSK with two frequencies, corresponding to the digital values 0 and 1 (see diagram) is the primary method used by low-speed modems.FSK is a low performance type of digital modulation. Binary FSK is a form of constant amplitude angle modulation,