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On The Fundamental Aspects of Demodulation
Subhradeep Pal, B. N. Biswas
Pages - 86 - 96     |    Revised - 15-07-2012     |    Published - 10-08-2012
Volume - 6   Issue - 3    |    Publication Date - August 2012  Table of Contents
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KEYWORDS
FM Signal, TEO, Instantaneous Frequency, Energy Separation Algorithm, Mixer
ABSTRACT
When the instantaneous amplitude, phase and frequency of a carrier wave are modulated with the information signal for transmission, it is known that the receiver works on the basis of the received signal and a knowledge of the carrier frequency. The question is: If the receiver does not have the a priori information about the carrier frequency, is it possible to carry out the demodulation process? This tutorial lecture answers this question by looking into the very fundamental process by which the modulated wave is generated. It critically looks into the energy separation algorithm for signal analysis and suggests modification for distortionless demodulation of an FM signal, and recovery of sub-carrier signals
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1 B. Boashash, “Estimating and interpreting the instantaneous frequency of a signal - Part I:fundamentals,” Proceedings of the IEEE, vol. 80, no. 4, pp520-538, April 1992.
2 J. F. Kaiser, “On a simple algorithm to calculate the ‘energy’ of a signal.” in Proc. IEEE Inr.Conf Acoustic., Speech, Signal Processing, Albuquerque, NM. Apr. 1990. pp. 381-384
3 J. F. Kaiser, “On a Simple Algorithm to Calculate the ‘Energy’ of a Signal,” Proceedings of the IEEE ICASSP’90, pp. 149–152.
4 P. Maragos, J.F. Kaiser, and T.F. Quartieri, “On Amplitude and Frequency Demodulation Using Energy Operators,” IEEE Transactions in Signal Processing, Vol. 41, No. 4, pp. 1532–1550, 1993.
5 B. Santhanam, et al., “Multicomponent AM-FM demodulation via Periodicity-based Algebraic Separation and Energy-based Demodulation,” IEEE Transactions on Communications, vol.48, no. 3, pp. 473–489, March 2000.
6 James F. Kaiser, “Some Useful Properties of Teager's Energy Operators,” Proc. IEEE ICASSP-93, vol. 3, pp. 149-152, 1993.
7 P Maragos, J F. Kaiser and T F. Quatieri, “On Amplitude and Frequency Demodulation Using Energy Operators,” IEEE Transactions on Signal Processing, vol 41, no. 4. pp. 1532-1550, April 1993
8 P. Maragos, T. F. Quatieri, and J.F. Kaiser, “On separating amplitude from frequency modulations using energy operators,” in Proc. IEEE ICASSP ’92, San Francisco, CA, Mar.1992.
9 ETSI Recommendation ES 201235-3 v1.1.1 (2000-09), Specification of Dual Tone MultiFrequency (DTMF) Transmitter and Receivers; Part 3: Receivers.
10 S. Pal, S. Chatterjee and B. N. Biswas, “Energy Based Discriminator: Some Issues,”International Journal of Engineering Research and Applications, vol. 2, issue 3, pp. 1735-1741, May-June 2012.
11 A. O. Boudraa, “Instantaneous Frequency Estimation of FM signals by ?B –Energy Operator,” Electronics Letters, vol. 47, issue 10, pp. 623-624, 2011.
12 H. U. Dehner et.al., “The Teager-Kaiser Energy Operator in Presence of Multiple Narrowband Interference,” IEEE Communications Letters, vol. 14, no. 18, pp. 716-718,2010.
13 H. U. Dehner et.al., “On the modified Teager-Kaiser energy operator regarding narrowband interference,” Proceedings of Wireless Telecommunications Symposium (WTS), pp. 1-5,2011.
14 A. Potamianos and P. Maragos, “A Comparison of the energy operator and the Hilbert transform approach to signal and speech demodulation,” Signal Processing, vol. 37, no. 1,pp 95-120, May 1994.
15 A. Bouchikhi and A. O. Boudraa, “Multicomponent AM-FM signal analysis based on EMD-B Splines ESA”, Signal Processing, vol. 92, issue. 9, pp. 2214-2228, September 2012.
16 F. Salzenstein and A. O. Boudraa, “Multi-dimmensional higher order differential operators derived from the Teager-Kaiser energy tracking function”, Signal Processing, vol. 89, issue 4, pp. 623-640, April 2009.
17 B. N. Biswas et.al., “A Doubly Tracking Discriminator”, Proceedings of Applied Electromagnetics Conference (AEMC), pp. 1-4, 2009.
18 S. Pal, “Speech Signal Processing: Nonlinear Energy Operator Centric Review”,International Journal of Electronics Engineering Research, Article in Press, vol. 4, no. 3, pp.205-221, September 2012.
19 S. Pal, Teager Energy Operator and Its Applications in Communication Engineering, B. Tech Final Year Project, Academy of Technology, May 2009.
20 D. Dimitriadis et.al., “A Comparison of the Squared Energy and Teager-Kaiser Operators for Short Term Energy Estimation in Additive Noise,” IEEE Transactions on Signal Processing,vol. 57, issue 7, pp.2569-2581, 2009.
Mr. Subhradeep Pal
Sir J.C. Bose School of Engineering - India
subhradeeppal@gmail.com
Professor B. N. Biswas
Sir J.C. Bose School of Engineering - India