A Physics Based Multi-resolution Technique For Extraction Of Finite Duration Time Responses In Radar Images

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Title: A Physics Based Multi-resolution Technique For Extraction Of Finite Duration Time Responses In Radar Images
Author: Lanett, Nancy
Abstract: This paper presents a wavelet multi -resolution technique for examination of scattering phenomena in radar images . Through multi -resolution frequency domain analysis , range gating is implemented for extraction of wave medium interaction phenomena . To analyze the data , a sliding range gate is implemented by applying a phase shift to the spectral domain far field data prior to wavelet analysis . A method for efficient removal of window effects , which occur due to the finite nature of the data , is demonstrated through reconstruction of the decomposed waveform following removal of the lowest resolution . A correlation of the physical meaning of the multi -resolution data to scattering interactions is demonstrated for several test cases consisting of metallic targets . Results and representative images , reconstructed from the experimental scattering data , demonstrate that the proposed approach provides a means to examine scattering phenomena at different instances in time .
URI: http : / /hdl .handle .net /10106 /465
Date: 2007-08-23

Citation

A Physics Based Multi-resolution Technique For Extraction Of Finite Duration Time Responses In Radar Images. Available electronically from http : / /hdl .handle .net /10106 /465 .

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