A 2D Nested Array Based DOA Estimator for Incoherently Distributed Sources via Sparse Representation Utilizing L1-Norm
المؤلفون المشاركون
Wu, Tao
Li, Yiwen
Huang, Yijie
Li, Zhengxin
Xu, Jiwei
المصدر
International Journal of Antennas and Propagation
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-07-03
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
Nested arrays are sparse arrays composed of subarrays with nonuniform sensor spacing.
Compared with traditional uniform arrays, nested arrays have more degree of freedoms (DOFs) and larger apertures.
In this paper, a nested array has been proposed as well as a direction-of-arrival (DOA) estimation method for two-dimensional (2D) incoherently distributed (ID) sources.
A virtual array is firstly obtained through vectorization of the cross-correlation matrix of subarrays.
Sensor positions of the virtual array and the optimal configuration of the nested array are derived next.
Then rotational invariance relationship for generalized steering matrix of the virtual array with respect to nominal azimuth is deduced.
According to the rotational invariance relationship, sparse representation model under l1-norm constraint is established, which is resolved by transferring the objective function to second-order cone constraints and combining a estimation residual error constraint for receive vector of the virtual array.
Simulations are conducted to investigate the effectiveness of the proposed method in underdetermined situation and examine different experiment factors including SNR, snapshots, and angular spreads as well as sensor number of subarrays.
Results show that the proposed method has better performance than uniform parallel arrays with the same number of sensors.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Wu, Tao& Li, Yiwen& Li, Zhengxin& Huang, Yijie& Xu, Jiwei. 2019. A 2D Nested Array Based DOA Estimator for Incoherently Distributed Sources via Sparse Representation Utilizing L1-Norm. International Journal of Antennas and Propagation،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1157728
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Wu, Tao…[et al.]. A 2D Nested Array Based DOA Estimator for Incoherently Distributed Sources via Sparse Representation Utilizing L1-Norm. International Journal of Antennas and Propagation No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1157728
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Wu, Tao& Li, Yiwen& Li, Zhengxin& Huang, Yijie& Xu, Jiwei. A 2D Nested Array Based DOA Estimator for Incoherently Distributed Sources via Sparse Representation Utilizing L1-Norm. International Journal of Antennas and Propagation. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1157728
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1157728
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر