Fourier-wavelet regularized deconvolution (ForWaRD) for lidar systems based on TEA-CO2 laser |
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Authors: | A.R. Bahrampour A.A. Askari |
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Affiliation: | a International Center for Science and High Technology and Environmental Sciences (ICST), Kerman, Iran b Vali-E-Asr University of Rafsanjan, Rafsanjan, Iran |
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Abstract: | Lidar is an efficient tool for remotely measuring physical quantities or detecting targets. To improve the range resolution in long pulse lidars, such as lidar systems based on TEA-CO2 lasers, deconvolution methods were used by previous investigators. Deconvolution is a noise sensitive process. In order to avoid noise amplification during the deconvolution process, the Fourier-wavelet regularized deconvolution method is used to deconvolve and denoise the back-scattered lidar signal simultaneously. This method is applied to lidar systems based on the TEA-CO2 laser and the results are compared to nitrogen tail clipping method. Numerical simulation shows, in comparison to the clipping nitrogen tail technique, by using the ForWaRD method; the range resolution and working distance of the lidar is improved and the clipping tail apparatus is also eliminated. |
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Keywords: | 42.68.Wt |
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