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Proceedings Paper

Ultrawideband imaging radar based on OFDM: system simulation analysis
Author(s): Dmitriy Garmatyuk
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Paper Abstract

Orthogonal frequency division-multiplexing (OFDM) is rapidly emerging as a preferred method of UWB signaling in commercial applications aimed mainly at low-power, high data-rate communications. This paper explores the possibility of applying OFDM to use in imaging radar technology. Ultra-wideband nature of the signal provides for high resolution of the radar, whereas usage of multi-sub-carrier method of modulation allows for dynamic spectrum allocation. Robust multi-path performance of OFDM signals and heavy reliance of transceiver design on digital processors easily implemented in modern VLSI technology make a number of possible applications viable, e.g.: portable high-resolution indoor radar/movement monitoring system; through-the-wall/foliage synthetic aperture imaging radar with a capability of image transmission/broadcasting, etc. Our work is aimed to provide a proof-of-concept simulation scenario to explore numerous aspects of UWB-OFDM radar imaging through evaluating range and cross-range imaging performance of such a system with an eventual goal of software-defined radio (SDR) implementation. Stripmap SAR topology was chosen for modeling purposes. Range/cross-range profiles were obtained along with full 2-D images for multi-target in noise scenarios. Model set-up and results of UWB-OFDM radar imaging simulation study using Matlab/Simulink modeling are presented and discussed in this paper.

Paper Details

Date Published: 8 May 2006
PDF: 11 pages
Proc. SPIE 6210, Radar Sensor Technology X, 621007 (8 May 2006); doi: 10.1117/12.660274
Show Author Affiliations
Dmitriy Garmatyuk, Miami Univ. (United States)

Published in SPIE Proceedings Vol. 6210:
Radar Sensor Technology X
Robert N. Trebits; James L. Kurtz, Editor(s)

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