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Emitter Location Using Frequency Difference of Arrival Measurements Only

Sensors (Basel, Switzerland), 2022-12, Vol.22 (24), p.9642 [Peer Reviewed Journal]

COPYRIGHT 2022 MDPI AG ;2022 by the author. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;2022 by the author. 2022 ;ISSN: 1424-8220 ;EISSN: 1424-8220 ;DOI: 10.3390/s22249642 ;PMID: 36560010

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  • Title:
    Emitter Location Using Frequency Difference of Arrival Measurements Only
  • Author: Khalaf-Allah, Mohamed
  • Subjects: Accuracy ; Algorithms ; Computer Simulation ; Doppler effect ; emitter location ; Emitters ; frequency difference of arrival (FDoA) ; geolocation ; grid-based location estimation ; Measurement ; Measurement techniques ; Military communications ; Narrowband ; Receivers & amplifiers ; sample-based location estimation ; Sensors ; Signal processing ; Solution space ; Time Factors ; Time measurement
  • Is Part Of: Sensors (Basel, Switzerland), 2022-12, Vol.22 (24), p.9642
  • Description: It is desirable to enable emitter location using frequency difference of arrival (FDoA) measurements only, since many signals are characterized by coarse range resolution and fine Doppler resolution. For instance, while using the cross-ambiguity function (CAF) to measure the time difference of arrival (TDoA) and the FDoA of a narrowband signal, it is difficult to obtain accurate TDoA measurements because the Doppler resolution is higher than the range resolution. Grid-based and sample-based algorithms are developed to solve the two-dimensional (2D) emitter location problem, where the solution space is approximated, respectively, by generating deterministic and random emitter location candidates. Simulation results corroborate the viability of both non-iterative algorithms to estimate the emitter location using a single-time snapshot of FDoA measurements only, without any prior location information or any knowledge about the distribution of measurement errors. The achieved accuracies are sufficient for early warning purposes, preparing defenses, and cueing more accurate location sensors by directing additional surveillance resources.
  • Publisher: Switzerland: MDPI AG
  • Language: English
  • Identifier: ISSN: 1424-8220
    EISSN: 1424-8220
    DOI: 10.3390/s22249642
    PMID: 36560010
  • Source: Geneva Foundation Free Medical Journals at publisher websites
    MEDLINE
    PubMed Central
    ROAD: Directory of Open Access Scholarly Resources
    ProQuest Central
    DOAJ Directory of Open Access Journals

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