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Modulation parameter estimation of LFM interference for direct sequence spread spectrum communication system in alpha-stable noise

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Liu, Mingquian, Han, Yuting, Chen, Yunfei, Song, Hao, Yang, Zhutian and Gong, Fengkui (2021) Modulation parameter estimation of LFM interference for direct sequence spread spectrum communication system in alpha-stable noise. IEEE Systems Journal, 15 (1). pp. 881-892. doi:10.1109/JSYST.2020.2991078

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Official URL: https://doi.org/10.1109/JSYST.2020.2991078

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Abstract

The linear frequency modulation (LFM) interference is one of the typical broadband interferences in direct sequence spread spectrum (DSSS) communication system. In this article, a novel modulation parameter estimation method of LFM interference is proposed for the DSSS communication system in alpha-stable noise. To accurately estimate the modulation parameters, the alpha-stable noise should be eliminated first. Thus, we formulate a new generalized extended linear chirplet transform to suppress the alpha-stable noise, for a robust time-frequency, transformation of LFM interference is realized. Then, using the Radon transform, the maximum value after transformation and the chirp rate according to the angle related to the maximum value are estimated. In addition, a generalized Fourier transform is introduced to estimate the initial frequency of the LFM interference. For the performance analysis, the Cramér-Rao lower bounds of the estimated chirp rate and the initial frequency of the LFM interference in the presence of alpha-stable noise are derived. Moreover, the asymptotic properties of the modulation parameter estimator are analyzed. Simulation results demonstrate that the performance of the proposed parameter estimation method significantly outperforms existing methods, especially in a low SNR regime.

Item Type: Journal Article
Subjects: Q Science > QA Mathematics
Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH): Spread spectrum communications, Frequency modulation detectors , Fourier transformations , Parameter estimation
Journal or Publication Title: IEEE Systems Journal
Publisher: Institute of Electrical and Electronics Engineers
ISSN: 1932-8184
Official Date: March 2021
Dates:
DateEvent
March 2021Published
19 May 2020Available
25 April 2020Accepted
Volume: 15
Number: 1
Page Range: pp. 881-892
DOI: 10.1109/JSYST.2020.2991078
Status: Peer Reviewed
Publication Status: Published
Publisher Statement: © 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Access rights to Published version: Restricted or Subscription Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
61501348 [NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
61801363[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
2019GY-043Shanxi Provincial Key Research and Development Projecthttp://dx.doi.org/10.13039/501100013317
6141A02022338Ministry of Education and Sciencehttp://dx.doi.org/10.13039/501100005992
2017M611912China Postdoctoral Science Foundationhttp://dx.doi.org/10.13039/501100002858
B08038Higher Education Discipline Innovation Projecthttp://dx.doi.org/10.13039/501100013314
20180696503China Scholarship Councilhttp://dx.doi.org/10.13039/501100004543
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