By Topic

Design of Discrete Time Demodulators of AM- and FM-Harmonic Signals Using Energy Operators

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Tymoshchuk, P. ; Dept. of CAD/CAM, Lviv Polytech. Nat. Univ., Lviv

The mathematical models and structure-functional diagrams of new discrete time demodulators of amplitude modulated (AM-) and frequency modulated (FM-) signals are proposed. The models are determined in a form of difference equations with given initial conditions. Appropriate functional block-diagrams of the demodulators consist discrete time differentiators, integrators, summers, multipliers, dividers and functional transformers. The structure and parameters of demodulators are independent of a carrier frequency. The proposed demodulators do not need a filtering of output signals. In the conditions of small level noises in input signals the demodulators can be used without any additional tools. An affect of high level noises can be minimized to an acceptable magnitude if input signals before demodulator are passed through a set of narrow band filters with an obtaining on its output almost monochromatic signals.

Published in:

CAD Systems in Microelectronics, 2007. CADSM '07. 9th International Conference - The Experience of Designing and Applications of

Date of Conference:

19-24 Feb. 2007