Generation of Quasi-Gaussian Pulses Based on Correlation Techniques

Advances in Electrical and Computer Engineering

POHOATA, S. ; POPA, A. ; ALEXANDRU, N. D..

关键词: correlation techniques;    digital signal processing;    gaussian pulse;    spectral analysis;    ultra-wideband;   

DOI  :  10.4316/AECE.2012.01012

学科分类：计算机科学（综合）

来源: Universitatea "Stefan cel Mare" din Suceava

【 摘 要 】

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.

【 授权许可】

Unknown