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Ambiguity Analysis and Resolution for Phase-Based 3D Source Localization under Given UCA
المؤلفون المشاركون
Liu, Zhen
Liu, Tianpeng
Peng, Bo
Chen, Xin
Wei, Zhenhua
Li, Linlin
المصدر
International Journal of Antennas and Propagation
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-04-18
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
Under uniform circular array, by employing some algebraic schemes to exploit the phase information of receiving data and further estimate the source’s three-dimensional (3D) parameters (azimuth angle, elevation angle, and range), a series of novel phase-based algorithms with low computational complexity have been proposed recently.
However, when the array diameter is larger than source’s half-wavelength, these algorithms would suffer from phase ambiguity problem.
Even so, there always exist certain positions, where the source’s parameters can still be determined with nonambiguity.
Therefore, this paper first investigates the zone of ambiguity-free source 3D localization using phase-based algorithms.
For the ambiguous zone, a novel ambiguity resolution algorithm named ambiguity traversing and cosine matching (ATCM) is presented.
In ATCM, the phase differences of centrosymmetric sensors under different ambiguities are utilized to match a cosine function with sensor number-varying, and the source’s unambiguous rough angles can be derived from amplitude and initial phase of the cosine function.
Then, the unambiguous angles are employed to resolve the phase ambiguity of the phase-based 3D parameter estimation algorithm, and the source’s range as well as more precise angles can be achieved.
Theoretical analyses and numerical examples show that, apart from array diameter and source’s frequency, the sensor number and spacing of employed sensors are two key factors determining the unambiguous zone.
Moreover, simulation results demonstrate the effectiveness and satisfactory performance of our proposed ambiguity resolution algorithm.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Liu, Zhen& Chen, Xin& Wei, Zhenhua& Liu, Tianpeng& Li, Linlin& Peng, Bo. 2019. Ambiguity Analysis and Resolution for Phase-Based 3D Source Localization under Given UCA. International Journal of Antennas and Propagation،Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1157493
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Liu, Zhen…[et al.]. Ambiguity Analysis and Resolution for Phase-Based 3D Source Localization under Given UCA. International Journal of Antennas and Propagation No. 2019 (2019), pp.1-12.
https://search.emarefa.net/detail/BIM-1157493
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Liu, Zhen& Chen, Xin& Wei, Zhenhua& Liu, Tianpeng& Li, Linlin& Peng, Bo. Ambiguity Analysis and Resolution for Phase-Based 3D Source Localization under Given UCA. International Journal of Antennas and Propagation. 2019. Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1157493
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1157493
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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