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Title:
UNIFIED EXPRESSION METHOD FOR SELF-ADAPTIVE FILTER COEFFICIENT-BASED RADIO FREQUENCY FINGERPRINT AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/217641
Kind Code:
A1
Abstract:
A unified expression method for a self-adaptive filter coefficient-based radio frequency fingerprint and an electronic device. The method comprises: a receiver receives a wireless signal by means of oversampling, and obtains all baseband signals by means of down-conversion; signal synchronization as well as carrier wave frequency offset and phase offset estimation are performed, and residual frequency offset and phase offset are removed to obtain a baseband signal containing a radio frequency fingerprint; symbol demodulation and remodulation are performed on the baseband signal to obtain an ideal baseband signal which does not contain a radio frequency fingerprint; a radio frequency fingerprint which is uniformly expressed as an N-order self-adaptive filter coefficient is estimated by means of a self-adaptive algorithm; and finally, N+1 filter coefficients are extracted as the radio frequency fingerprint.

Inventors:
HU AIQUN (CN)
YU JIABAO (CN)
Application Number:
PCT/CN2021/089536
Publication Date:
October 20, 2022
Filing Date:
April 25, 2021
Export Citation:
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Assignee:
PURPLE MOUNTAIN LABORATORIES (CN)
UNIV SOUTHEAST (CN)
International Classes:
H04L1/20; G06K9/62; H03H21/00
Foreign References:
CN111884974A2020-11-03
CN109921886A2019-06-21
CN102693411A2012-09-26
CN103051458A2013-04-17
Other References:
LI YUSHAN; CHEN LIUFEI; CHEN JIE; XIE FEIYI; CHEN SONGLIN; WEN HONG: "A Low Complexity Feature Extraction for the RF Fingerprinting Process", 2018 IEEE CONFERENCE ON COMMUNICATIONS AND NETWORK SECURITY (CNS), 30 May 2018 (2018-05-30), pages 1 - 2, XP033383958, DOI: 10.1109/CNS.2018.8433156
WILSON AARON J.; REISING DONALD R.; LOVELESS T. DANIEL: "Integration of Matched Filtering within the RF-DNA Fingerprinting Process", 2019 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM), 9 December 2019 (2019-12-09), pages 1 - 6, XP033722922, DOI: 10.1109/GLOBECOM38437.2019.9014225
LIU YANPING, JINPENG TIAN, YONG CHEN: "RF Fingerprinting Identification with Feature Fusion", JOURNAL OF SHANGHAI UNIVERSITY (NATURAL SCIENCE EDITION), vol. 23, no. 3, 30 July 2017 (2017-07-30), pages 408 - 413, XP055977287, ISSN: 1007-2861, DOI: 10.12066/j.issn.1007-2861.1624
Attorney, Agent or Firm:
NANJING RUIZHIBO INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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