Title :
A Novel Analysis of FM Discriminators by Taylor´s Expansion
Author :
Lee, Choong Woong
Author_Institution :
College of Engineering Seoul National University Seoul, Korea
Abstract :
The theory of FM discriminators is presented by expanding its transfer function into Taylor´s series, and the application of the results to the typical FM discriminators (slope discriminator, Travis discriminator, Foster-Seeley discriminator, and line discriminator) is added. The output signal of the FM discriminator expressed by Taylor´s expansion shows the clear relationship between the fundamental and the harmonics. The design equations obtained from this analysis enable a designer to construct FM discriminators which will provide a desired low distortion performance.
Keywords :
Communication systems; Demodulation; Educational institutions; Equations; Frequency modulation; Linearity; Performance analysis; RLC circuits; Taylor series; Transfer functions;
Journal_Title :
Broadcast and Television Receivers, IEEE Transactions on
DOI :
10.1109/TBTR1.1969.4320176