Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/28457
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Type: Conference paper
Title: Improved techniques for monitoring the HF spectrum
Author: Giesbrecht, J.
Clarke, R.
Abbott, D.
Citation: Microelectronics : design, technology, and packaging : 10-12 December 2003, Perth, Australia / Derek Abbott, Kamran Eshraghian, Charles A. Musca, Dimitris Pavlidis, Neil Weste (ed.), pp. 112-122
Publisher: SPIE
Publisher Place: Washington, USA
Issue Date: 2004
Series/Report no.: Proceedings of SPIE--the International Society for Optical Engineering ; 5274.
ISBN: 0819451673
ISSN: 0277-786X
1996-756X
Conference Name: Microelectronics, MEMS, and Nanotechnology (2003 : Perth, Australia)
Editor: Faraone, L.
Varadan, K.
Statement of
Responsibility: 
James E. Giesbrecht, Russell Clarke, and Derek Abbott
Abstract: A critical review of contemporary papers on modulation recognition, signal separation, and Single Station Location (SSL) is described in the context of High-Frequency (HF) radio-communications. High-frequency communications is undergoing resurgence despite advances in long-range satellite communication systems. Defense agencies are using the HF spectrum for backup communications as well as for spectrum surveillance applications. Spectrum management organizations are monitoring the HF spectrum to control and enforce licensing. This type of activity usually requires a system that is able to determine the location of a source of transmissions, separate valid signals from interferers and noise, and characterize signals-of-interest (SOI). The immediate aim is to show that commercial-off-the-shelf (COTS) equipment can be used to locate HF transmission sources, enhance SOIs and reject interference, and recognize signal types. The described work on single-station-location (SSL), signal separation, and modulation recognition is contributing to these goals. This paper describes the overall objectives and some of the disadvantages and benefits of various schemes for single-station-location (SSL), signal separation, and modulation recognition. It also proposes new approaches that may relieve shortcomings of existing methods -- including selection of benchmarks or modulations for various transmission scenarios and propagation modes, and use of multiple digital receivers or compression techniques to improve modulation recognition, signal separation, and location of HF emitters.
Description: © 2004 COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
DOI: 10.1117/12.529878
Appears in Collections:Aurora harvest 2
Electrical and Electronic Engineering publications

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