Loading...
A new AM demodulation scheme with a blind carrier recovery method
Author(s)
Sukkharak, S.
Jeerasuda, K.
Paramote, W.
Date Issued
January 1, 2015
Type
Conference Paper
Abstract
In this paper, the proposed large carrier AM demodulation scheme implemented based on the proposed sinusoidal automatic gain control scheme (SAGC) is presented. A Multiplier, a LPF and 2 sets of SAGC are combined to accomplish the new AM demodulation scheme. The prominent benefit of the proposed AM demodulation scheme is having the blind carrier recovery method. For any ranges of the carrier frequencies and wide range of the modulation indexes, the proposed AM demodulation scheme has the ability to recover the baseband signal. With a very simple mathematical analysis, the proposed SAGC provides unity magnitude and 90-shifted phase output for all input's frequency components. By using the computer simulation, the proposed SAGC and AM demodulation schemes provide the convenience, advantages and acceptable results compared to their traditional techniques.
Citation
Lecture Notes in Engineering and Computer Science, 2, 567-570, 2015