Detection of frequency-hopped waveforms embedded in interference waveforms with noise

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Robertson_Detection_of_Frequency-Hopped-with-Noise.pdf (563.5 KB)
Authors
Weber, John
Kowalske, Kyle
Robertson, Clark
Kragh, Frank
Brown, Christopher
Subjects
Detection
Estimation
Frequency-hopped
Exponential averaging
Advisors
Date of Issue
2007
Date
Publisher
IEEE
Language
Abstract
Bandwidth usage has become more complex such that it is not uncommon that multiple signals of appreciable power may be present within the same bandwidth. The presence of multiple signals in addition to additive white Gaussian (AWGN) increases the difficulty of detecting frequency-hopped (FH) waveforms. This paper investigates the performance of an exponential-averaging based FH detection method in the presence of interfering signals and AWGN. The detection method provides an estimate of the noise plus inference spectrum using exponential averaging and then generates an estimate of the desired signal spectrum by combining the estimated noise plus interference spectrum with the composite (desired signal plus interference plus noise) spectrum. Finally, this paper evaluates the detector’s performance as a function of the exponential coefficient, the combining method (division or subtraction), signal-to-AWGN ratio (SNR), and signal-to-interference ratio (SIR).
Type
Conference Paper
Description
The article of record as published may be found at http://dx.doi.org/10.1109/ICC.2007.494
URI
https://hdl.handle.net/10945/56456
Series/Report No
Department
Electrical and Computer Engineering
Organization
Naval Postgraduate School (U.S.)
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NPS Report Number
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Format
6 p.
Citation
J. Weber, K. Kowalske, C. Robertson, F. Kragh, C. Brown, "Detection of frequency-hoped waveforms embedded in interference waveforms with noise," IEEE International Conference on Communications, 2007, ICC '07, 24-28 June 2007, pp. 2973-2978
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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