%0 Journal Article
%T AUTO CORRELATION PROPERTIES USING MULTIPLE ULTRA WIDE BAND UWB) PULSES
%A CH.SRINIVASU
%A K.RAJA RAJESWARI
%J International Journal of Engineering Science and Technology
%D 2011
%I Engg Journals Publication
%X The concept of a generalized ambiguity function which is a two dimensional autocorrelation function is convenient tool for the performance analysis of carrier free radar represented by a Sequence of (Positive and negative) ideal Gaussian pulses. In this paper the concepts of waveform design and autocorrelation properties are presented based on a physically realizable non-sinusoidal multiple Gaussian pulses. The time variation of the non-sinusoidal signal is that of a UWB frequency spectrum is free from dc component. The autocorrelation function for UWB coded signals composed of finite sequence of GGP signals. The plots of autocorrelation functions of the GGP signals can achieve the target resolution and clutter suppression capabilities. This paper presents the autocorrelation properties of multiple ultra wideband waveforms, because single pulse cannot achieve the desired energy. Hence this paper presentsthe improvement of energy spectrum by using multiple UWB pulses in time and frequency domain. Traditional methods of ultra wideband radar signal generation suffer from several disadvantages lowradiation efficiency, lack of accurate control of signal parameters like shape, pulse repetition interval (PRI) and its spectrum. Multi UWB pulses overcome the disadvantages of traditional non sinusoidalsignals. The range resolution functions are observed analytically and are presented two dimensional surfaces as a function of time delay and autocorrelation energy.
%K Non sinusoidal waveforms
%K Autocorrelation function
%K radar resolution.
%U http://www.ijest.info/docs/IJEST11-03-04-117.pdf