Correction of frequency offset of FFT-based frequency hopping detector

Kyung Gyu Lee; Seong-Jun Oh

doi:10.1109/ICTC.2017.8190796

Correction of frequency offset of FFT-based frequency hopping detector

Kyung Gyu Lee, Seong-Jun Oh

Department of Computer Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Frequency hopping (FH) is widely used in commercial and military communications. The purposes of FH in military communications are anti-jamming and low probability of interception. To implement low probability of detection or interception, FH signals randomly change carrier frequency. There are several kinds of FH detectors for example autocorrelation detector, maximum-likelihood detector and optimum detection. We focused on FFT-based detector kinds of maximum-likelihood detector. The FFT-based detector can monitor several MHz and more. However, the FFT-based detector suffers from frequency offset problem due to a lack of information of targeted FH signals. To improve the drawback, we propose interpolation estimation of frequency offset. The proposed approach mitigates the effect of frequency offset and increases probability of detection. Furthermore, the proposed approach has low complexity and does not require additional hardware. In this paper, we show the linear interpolation estimation of frequency offset and compare it with conventional detector in probability of detection.

Original language	English
Title of host publication	International Conference on Information and Communication Technology Convergence
Subtitle of host publication	ICT Convergence Technologies Leading the Fourth Industrial Revolution, ICTC 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	846-848
Number of pages	3
Volume	2017-December
ISBN (Electronic)	9781509040315
DOIs	https://doi.org/10.1109/ICTC.2017.8190796
Publication status	Published - 2017 Dec 12
Event	8th International Conference on Information and Communication Technology Convergence, ICTC 2017 - Jeju Island, Korea, Republic of Duration: 2017 Oct 18 → 2017 Oct 20

Other

Other	8th International Conference on Information and Communication Technology Convergence, ICTC 2017
Country	Korea, Republic of
City	Jeju Island
Period	17/10/18 → 17/10/20

ASJC Scopus subject areas

Computer Networks and Communications
Computer Science Applications
Information Systems
Information Systems and Management

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Lee, K. G., & Oh, S-J. (2017). Correction of frequency offset of FFT-based frequency hopping detector. In International Conference on Information and Communication Technology Convergence: ICT Convergence Technologies Leading the Fourth Industrial Revolution, ICTC 2017 (Vol. 2017-December, pp. 846-848). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICTC.2017.8190796

Correction of frequency offset of FFT-based frequency hopping detector. / Lee, Kyung Gyu; Oh, Seong-Jun.

International Conference on Information and Communication Technology Convergence: ICT Convergence Technologies Leading the Fourth Industrial Revolution, ICTC 2017. Vol. 2017-December Institute of Electrical and Electronics Engineers Inc., 2017. p. 846-848.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lee, KG & Oh, S-J 2017, Correction of frequency offset of FFT-based frequency hopping detector. in International Conference on Information and Communication Technology Convergence: ICT Convergence Technologies Leading the Fourth Industrial Revolution, ICTC 2017. vol. 2017-December, Institute of Electrical and Electronics Engineers Inc., pp. 846-848, 8th International Conference on Information and Communication Technology Convergence, ICTC 2017, Jeju Island, Korea, Republic of, 17/10/18. https://doi.org/10.1109/ICTC.2017.8190796

Lee KG, Oh S-J. Correction of frequency offset of FFT-based frequency hopping detector. In International Conference on Information and Communication Technology Convergence: ICT Convergence Technologies Leading the Fourth Industrial Revolution, ICTC 2017. Vol. 2017-December. Institute of Electrical and Electronics Engineers Inc. 2017. p. 846-848 https://doi.org/10.1109/ICTC.2017.8190796

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abstract = "Frequency hopping (FH) is widely used in commercial and military communications. The purposes of FH in military communications are anti-jamming and low probability of interception. To implement low probability of detection or interception, FH signals randomly change carrier frequency. There are several kinds of FH detectors for example autocorrelation detector, maximum-likelihood detector and optimum detection. We focused on FFT-based detector kinds of maximum-likelihood detector. The FFT-based detector can monitor several MHz and more. However, the FFT-based detector suffers from frequency offset problem due to a lack of information of targeted FH signals. To improve the drawback, we propose interpolation estimation of frequency offset. The proposed approach mitigates the effect of frequency offset and increases probability of detection. Furthermore, the proposed approach has low complexity and does not require additional hardware. In this paper, we show the linear interpolation estimation of frequency offset and compare it with conventional detector in probability of detection.",

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Correction of frequency offset of FFT-based frequency hopping detector

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