Electro-Optic Range Signatures of Canonical Targets Using Direct Detection LIDAR

Date of Award

2018

Degree Name

M.S. in Electro-Optics

Department

Department of Electro-Optics

Advisor/Chair

Advisor: Edward Watson

Abstract

In this thesis, Electro-Optic (EO) range signatures are obtained with a Short-Wave Infrared Super-Continuum Laser (SWIR-SCL) source. 3D printed canonical targets of interest are illuminated by the SWIR-SCL pulsed laser. The scattered laser light from the target is directly detected in mono-static and bi-static configurations with a fast, high bandwidth Indium Gallium Arsenide (InGaAs) PIN photodiode. Temporal pulse returns provide target shape, orientation, and surface roughness information. Spatial and temporal analysis of the collected intensity distribution is performed in MATLAB. Macro and micro surface properties are identified from the collected data by correlating pulse amplitude variations with known range scenes. Finally, range resolution improvement is investigated by means of Tomographic Reconstruction using Radon Transforms and by image processing techniques such as Deconvolution.

Keywords

Optics, Electrical Engineering, Engineering, Computer Engineering, Experiments, Physics, Scientific Imaging, temporal sinogram, sinograms, lidar, ladar, deconvolution, InGaAs, direct detection, supercontinuum, SC, SWIR, pulsed laser, canonical, full waveform lidar, range only image, PIN photodiode, ToF, tomographic reconstruction, radon transform, speckle, FFT

Rights Statement

Copyright © 2018, author

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