Title :
Ultrawideband Signals: Theory, Simulation and Digital Processing
Author :
Chernogor, L. ; Kravchenko, V. ; Lazorenko, O.
Author_Institution :
Karazin Kharkiv Nat. Univ.
Abstract :
The propagation of the pulse ultrawideband (UWB) signals in plasma media, in particular, in the near-to-Earth´s plasma layers was simulated. The dispersive distortions of the UWB signal in that media were estimated. The absorption dispersion and the scattering dispersion were taken into consideration. The radar equation for the distributed target location with UWB signals was modified. The wavelet analysis of the UWB signals was performed. The obtained results with the results of the short-time Fourier transform processing were compared and in new specially constructed format were shown. New set of the analytical wavelets based on the atomic functions and called as the Kravchenko-Rvachev analytical wavelets was proposed. Two new types of UWB signals called as non-linear and fractal UWB signals were suggested. Numerical characteristics for created models of that UWB signal types were calculated. Two time-frequency transforms were proposed to apply for UWB signal analysis
Keywords :
Fourier transforms; dispersive media; electromagnetic pulse; electromagnetic wave propagation; electromagnetic wave scattering; signal processing; time-frequency analysis; ultra wideband communication; wavelet transforms; Kravchenko-Rvachev analytical wavelet analysis; absorption dispersion; digital processing; dispersive distortion; distributed target location; plasma media; pulse UWB signal propagation; radar equation; scattering dispersion; short-time Fourier transform processing; time-frequency transform; ultrawideband signals; Absorption; Dispersion; Nonlinear distortion; Plasma materials processing; Plasma simulation; Plasma waves; Signal analysis; Signal processing; Ultra wideband technology; Wavelet analysis; Ultrawideband signals; atomic functions; digital processing; propagation; radar equation; simulation; time-frequency transforms; wavelet analysis;
Conference_Titel :
Ultrawideband and Ultrashort Impulse Signals, The Third International Conference
Conference_Location :
Sevastopol
Print_ISBN :
1-4244-0513-0
DOI :
10.1109/UWBUS.2006.307154