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Stefan cel Mare
University of Suceava
Faculty of Electrical Engineering and
Computer Science
13, Universitatii Street
Suceava - 720229
ROMANIA

Print ISSN: 1582-7445
Online ISSN: 1844-7600
WorldCat: 643243560
doi: 10.4316/AECE


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SCOPUS published the CiteScore for 2020, computed by using an improved methodology, counting the citations received in 2017-2020 and dividing the sum by the number of papers published in the same time frame. The CiteScore of Advances in Electrical and Computer Engineering in 2020 is 2.5, better than all our previous results.

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  1/2009 - 3

Calculus of the Power Spectral Density of Ultra Wide Band Pulse Position Modulation Signals Coded with Totally Flipped Code

DURNEA, T. N., ALEXANDRU, N. D.
 
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Download PDF pdficon (531 KB) | Citation | Downloads: 856 | Views: 4,521

Author keywords
Ultra Wide Band, Pulse Position Modulation, Totally Flipped Code, Power Spectral Density

References keywords
systems(5), spectral(5), alexandru(4)
Blue keywords are present in both the references section and the paper title.

About this article
Date of Publication: 2009-02-03
Volume 9, Issue 1, Year 2009, On page(s): 16 - 21
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2009.01003
Web of Science Accession Number: 000264815300003
SCOPUS ID: 67749111405

Abstract
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UWB-PPM systems were noted to have a power spectral density (p.s.d.) consisting of a continuous portion and a line spectrum, which is composed of energy components placed at discrete frequencies. These components are the major source of interference to narrowband systems operating in the same frequency interval and deny harmless coexistence of UWB-PPM and narrowband systems. A new code denoted as Totally Flipped Code (TFC) is applied to them in order to eliminate these discrete spectral components. The coded signal transports the information inside pulse position and will have the amplitude coded to generate a continuous p.s.d. We have designed the code and calculated the power spectral density of the coded signals. The power spectrum has no discrete components and its envelope is largely flat inside the bandwidth with a maximum at its center and a null at D.C. These characteristics make this code suited for implementation in the UWB systems based on PPM-type modulation as it assures a continuous spectrum and keeps PPM modulation performances.


References | Cited By  «-- Click to see who has cited this paper

[1] Proakis, J. G., Salehi, M., "Communication System Engineering", Prentice Hall, Inc. Englewood Cliffs, New Jersey, pp. 493-495, 1994.

[2] Hoffman, J. R. et al., "Measurements to Determine Potential Interference to GPS Receivers from Ultrawideband Transmission Systems", NTIA Report 01-384, pp. 3/1-7/1, 2001.

[3] Pointurier, Y. et al., "Power Spectrum of M-Ary PPM", University of Virginia

[4] R. J. Fontana, "An insight into UWB interference from a shot noise perspective", IEEE Conference on Ultra Wideband Systems and Technologies, Baltimore, MD, 2002.
[CrossRef] [SCOPUS Times Cited 27]


[5] Roger A. Dalke et al., "The Temporal and Spectral Characteristics of Ultrawideband Signals", NTIA Report 01-383, pp. 3/1-3/11, Boulder, 2001.

[6] FCC Part 15.503, SubPart F "Ultra Wide Band Operation", pp. 767-775, 2002.

[7] Krzymien, W. A., "Transmission Performance Analysis of a New Class of Line Codes for Optical Fiber Systems", IEEE Trans. on Communications, vol. 37, pp. 402-404, no. 4, 1989.
[CrossRef] [SCOPUS Times Cited 14]


[8] Alexandru N. D., Dae Young Kim, "Spectral Shaping via Coding", Cermi, Iasi, pp. 11-27, 2003.

[9] Durnea T. N., "An Investigation of Spectral Properties of PPM Signals used in UWB Systems", International Symposium on Signals, Circuits and Systems, Iasi, Romania, 2007.
[CrossRef] [SCOPUS Times Cited 2]


[10] Alexandru, N. D., Morgenstern, G., "Digital Line Coding and Spectral Shaping", MatrixRom, Bucharest, 1998.

[11] Alexandru, N. D., Alexandru, M. L., "Spectral Shaping for Codes with P.S.D. Expressed by Rational Functions", Advances in Electrical and Computer Engineering, vol 8, no. 1, pg. 31-36, 2008.
[CrossRef] [Full Text] [SCOPUS Times Cited 3]


References Weight

Web of Science® Citations for all references: 0
SCOPUS® Citations for all references: 46 TCR

Web of Science® Average Citations per reference: 0
SCOPUS® Average Citations per reference: 4 ACR

TCR = Total Citations for References / ACR = Average Citations per Reference

We introduced in 2010 - for the first time in scientific publishing, the term "References Weight", as a quantitative indication of the quality ... Read more

Citations for references updated on 2022-07-02 08:56 in 29 seconds.




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Faculty of Electrical Engineering and Computer Science
Stefan cel Mare University of Suceava, Romania


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