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Proceedings Paper

Quick signal detection and dynamic resource allocation scheme for ultra-wideband radar
Author(s): Xiangming Kong; Ahmed Mohin
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Paper Abstract

A new scheme for sampling and detecting as well as reconstructing analog signals residing in a wide spectrum band through compressive sensing is proposed. By applying compressive sensing techniques, this scheme is able to detect signals quickly over very wide bandwidth. Unlike existing compressive sensing approaches which carry out the sampling and detection/reconstruction procedures separately, in this scheme, the sampling process and the detection/reconstruction process has close interaction. Once a new signal is detected, resources are allocated for further processing. Previously detected signals are then removed as interference to facilitate new signal detection. Hence, this scheme can quickly adapt to the variation of the environment. Moreover, it avoids the complex iterative optimization procedure in reconstruction and instead uses one step detection procedure to reaches real-time handling of signals. Simulation results show that it can closely track the spectrum change even when the signal is weak.

Paper Details

Date Published: 21 June 2011
PDF: 12 pages
Proc. SPIE 8021, Radar Sensor Technology XV, 802111 (21 June 2011); doi: 10.1117/12.883228
Show Author Affiliations
Xiangming Kong, HRL Labs., LLC (United States)
Ahmed Mohin, HRL Labs., LLC (United States)

Published in SPIE Proceedings Vol. 8021:
Radar Sensor Technology XV
Kenneth I. Ranney; Armin W. Doerry, Editor(s)

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