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Generation of Quasi-Gaussian Pulses Based on Correlation TechniquesPOHOATA, S. , POPA, A. , ALEXANDRU, N. D.
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correlation techniques, digital signal processing, gaussian pulse, spectral analysis, ultra-wideband
pulse(12), systems(10), gaussian(5), circuits(5), ultra(4), generator(4)
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About this article
Date of Publication: 2012-02-28
Volume 12, Issue 1, Year 2012, On page(s): 71 - 76
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2012.01012
Web of Science Accession Number: 000301075000012
SCOPUS ID: 84860731128
The Gaussian pulses have been mostly used within communications, where some applications can be emphasized: mobile telephony (GSM), where GMSK signals are used, as well as the UWB communications, where short-period pulses based on Gaussian waveform are generated. Since the Gaussian function signifies a theoretical concept, which cannot be accomplished from the physical point of view, this should be expressed by using various functions, able to determine physical implementations. New techniques of generating the Gaussian pulse responses of good precision are approached, proposed and researched in this paper. The second and third order derivatives with regard to the Gaussian pulse response are accurately generated. The third order derivates is composed of four individual rectangular pulses of fixed amplitudes, being easily to be generated by standard techniques. In order to generate pulses able to satisfy the spectral mask requirements, an adequate filter is necessary to be applied. This paper emphasizes a comparative analysis based on the relative error and the energy spectra of the proposed pulses.
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