NDLI: Time of flight measurements for optically illuminated underwater targets using Compressive Sampling and Sparse reconstruction

Content Provider	IEEE Xplore Digital Library
Author	Lee, Robert Mullen, Linda Pal, Piya Illig, David
Copyright Year	2015
Description	Author affiliation: Naval Air Systems Command, Patuxent River, MD, USA (Lee, Robert; Mullen, Linda) \|\| University Of Maryland, College Park, Electrical Engineering Dept., MD, USA (Pal, Piya) \|\| Clarkson University, Electrical Engineering Dept., Potsdam, NY, USA (Illig, David)
Abstract	Compressive Sampling and Sparse reconstruction theory is applied to a linearly frequency modulated continuous wave hybrid lidar/radar system. The goal is to show that high resolution time of flight measurements to underwater targets can be obtained utilizing far fewer samples than dictated by Nyquist sampling theorems. Traditional mixing/down-conversion and matched filter signal processing methods are reviewed and compared to the Compressive Sampling and Sparse Reconstruction methods. Simulated evidence is provided to show the possible sampling rate reductions, and experiments are used to observe the effects that turbid underwater environments have on recovery. Results show that by using compressive sensing theory and sparse reconstruction, it is possible to achieve significant sample rate reduction while maintaining centimeter range resolution.
Starting Page	1
Ending Page	6
File Size	2605185
Page Count	6
File Format	PDF
ISBN	9780933957435
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-10-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	MTS
Subject Keyword	Chirp Laser radar Bandwidth Receivers Sensors Frequency modulation Signal resolution Frequency Chirp FMCW Lidar Compressive Sampling Sparse Reconstruction
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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