<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1815-5928</journal-id>
<journal-title><![CDATA[Ingeniería Electrónica, Automática y Comunicaciones]]></journal-title>
<abbrev-journal-title><![CDATA[EAC]]></abbrev-journal-title>
<issn>1815-5928</issn>
<publisher>
<publisher-name><![CDATA[Universidad Tecnológica de La Habana José Antonio Echeverría, Cujae]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1815-59282022000100016</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Implementación Hardware-Software de un Sistema de Estimación de DOA con Súper Resolución]]></article-title>
<article-title xml:lang="en"><![CDATA[Super Resolution DOA Estimation System Hardware-Software Implementation]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ibarra Guerra]]></surname>
<given-names><![CDATA[Yunior]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez Zaldívar]]></surname>
<given-names><![CDATA[Alexander R]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Violat]]></surname>
<given-names><![CDATA[Abel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas Ramírez]]></surname>
<given-names><![CDATA[Noslen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Investigación y Desarrollo de Electrónica y Mecánica &#8220;CID MECATRONICS&#8221;  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<volume>43</volume>
<numero>1</numero>
<fpage>16</fpage>
<lpage>32</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1815-59282022000100016&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1815-59282022000100016&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1815-59282022000100016&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En este artículo se presenta una implementación combinada hardware-software de un sistema de estimación de la dirección de arribo (DOA, por sus siglas en inglés) con súper resolución de señales de radiofrecuencia. Luego de la simulación computacional del método escogido, se diseña e implementa el sistema con empleo de dos transceptores de microondas de banda ancha. Los transceptores se controlan por un kit de FPGA conectado a través de un adaptador PCI Express a una computadora de escritorio. Una interfaz gráfica se desarrolla para visualizar el espectro espacial y validar el correcto funcionamiento del sistema. El procedimiento seguido muestra las principales cuestiones, criterios de diseño y requerimientos a la hora de implementar este tipo de métodos. Además, se propone una solución de hardware modular genérica y flexible sin la necesidad de diseño y fabricación de placas de circuito impreso personalizadas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT This paper presents a super resolution Direction of Arrival (DOA) estimation system based on a combined hardware-software implementation for radio frequency signals. After computational simulation of the chosen method, the system is designed and implemented using two multichannel wideband microwave transceivers controlled by a FPGA board connected to a host computer with a PCI Express adapter. A graphic interface is developed to visualize the spatial spectrum and validate the right system performance. The followed procedure shows up the main issues and requirements when this kind of method is implemented. Moreover, a generic modular and flexible hardware solution is proposed where no custom printed circuit board design and fabrication is needed.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[DOA]]></kwd>
<kwd lng="es"><![CDATA[súper resolución]]></kwd>
<kwd lng="es"><![CDATA[MUSIC]]></kwd>
<kwd lng="es"><![CDATA[antenas inteligentes]]></kwd>
<kwd lng="en"><![CDATA[DOA]]></kwd>
<kwd lng="en"><![CDATA[super resolution]]></kwd>
<kwd lng="en"><![CDATA[MUSIC]]></kwd>
<kwd lng="en"><![CDATA[smart antennas]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jaafer]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Goli]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Elameer]]></surname>
<given-names><![CDATA[A. S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Performance Analysis of Beam scan, MIN-NORM, MUSIC and MVDR DOA Estimation Algorithms]]></source>
<year>2018</year>
<conf-name><![CDATA[ International Conference on Engineering Technologies and their Applications (ICETA)]]></conf-name>
<conf-loc>Najaf, Iraq </conf-loc>
<page-range>72-6</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2.</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gómez]]></surname>
<given-names><![CDATA[G. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Bernal]]></surname>
<given-names><![CDATA[S. L. V.]]></given-names>
</name>
<name>
<surname><![CDATA[Rizo]]></surname>
<given-names><![CDATA[F. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Space Time Adaptive Processing for Radio Frequency Identification Smart Antenna Systems]]></article-title>
<source><![CDATA[Revista de Ingeiería Electrónica, Automática y Comunicaciones, RIELAC]]></source>
<year>2018</year>
<volume>39</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>89-104</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Husain]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Steeg]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Sthor]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estimation Direction-of-Arrival in 5G Hotspot Scenario Using a 60 GHz Leaky-Wave Antenna]]></source>
<year>2017</year>
<conf-name><![CDATA[ IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)]]></conf-name>
<conf-loc>Tel Aviv, Israel </conf-loc>
<page-range>1-4</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[C.-N.]]></given-names>
</name>
<name>
<surname><![CDATA[Tsai]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Wong]]></surname>
<given-names><![CDATA[K.-J.]]></given-names>
</name>
<name>
<surname><![CDATA[Lo]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Angle Estimation through Millimeter Wave MIMO in 5G Systems]]></source>
<year>2019</year>
<conf-name><![CDATA[ Photonics &amp; Electromagnetics Research Symposium]]></conf-name>
<conf-loc>Xiamen, China </conf-loc>
<page-range>1001-3</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Abdelbari]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Bilgehan]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[A novel DOA Estimation Method of Several Sources for 5G Networks]]></source>
<year>2020</year>
<conf-name><![CDATA[ International Conference on Electrical, Commucation and Computer Engeniering (ICECCE)]]></conf-name>
<conf-loc>Istambul, Turkey </conf-loc>
<page-range>1-6</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hussain]]></surname>
<given-names><![CDATA[A. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Tayem]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Soliman]]></surname>
<given-names><![CDATA[A.-H.]]></given-names>
</name>
<name>
<surname><![CDATA[Radaydeh]]></surname>
<given-names><![CDATA[R. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[FPGA-Based Hardware Implementation of Computationally Efficient Multi-Source DOA Estimation Algorithms]]></article-title>
<source><![CDATA[IEEE Access]]></source>
<year>2019</year>
<volume>7</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>88845-58</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jung]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Jeon]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Jung]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Scalable ESPRIT Processor for Direction-of-Arrival Estimation of Frequency Modulated Continuous Wave Radar]]></article-title>
<source><![CDATA[Electronics]]></source>
<year>2021</year>
<volume>10</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>695</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Butt]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ullah]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Khaliq]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Reviriego]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Zahir]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Towards Low Latency and Resource-Efficient FPGA Implementations of the MUSIC Algorithm for Direction of Arrival Estimation]]></article-title>
<source><![CDATA[IEEE Transactions on Circuits and Systems]]></source>
<year>2021</year>
<volume>68</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>3351-62</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[K.-T.]]></given-names>
</name>
<name>
<surname><![CDATA[Wei-Hsuan]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hwang]]></surname>
<given-names><![CDATA[Y.-T.]]></given-names>
</name>
<name>
<surname><![CDATA[Kuan-Ying]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A Low Complexity, High Throughput DoA Estimation Chip Design for Adaptive Beamforming]]></article-title>
<source><![CDATA[Electronics]]></source>
<year>2020</year>
<volume>9</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>641-68</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Cheng]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[Q.]]></given-names>
</name>
<name>
<surname><![CDATA[Fu]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An Efficient Hardware Accelerator for the MUSIC Algorithm]]></article-title>
<source><![CDATA[Electronics]]></source>
<year>2020</year>
<volume>8</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>511-27</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Cui]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Antenna Array Signal Direction of Arrival Estimation on Digital Signal Processor (DSP)]]></article-title>
<source><![CDATA[Elsevier]]></source>
<year>2015</year>
<volume>55</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>782-91</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shi]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An Efficient FPGA Parallel Implementation for 2-D MUSIC Algorithm]]></article-title>
<source><![CDATA[IOP Conference Series: Earth and Environmental Science]]></source>
<year>2019</year>
<volume>252</volume>
<numero>1</numero>
<issue>1</issue>
</nlm-citation>
</ref>
<ref id="B13">
<label>13.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[H.-Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Chou]]></surname>
<given-names><![CDATA[C.-F.]]></given-names>
</name>
<name>
<surname><![CDATA[Golubchik]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[On direction-of-arrival (DoA) feedbach and precoding for 2D assisted massive MIMO]]></source>
<year>2018</year>
<conf-name><![CDATA[ IEEE Wireless Communications and Networking Conference (WCNC)]]></conf-name>
<conf-loc>Barcelona, Spain </conf-loc>
</nlm-citation>
</ref>
<ref id="B14">
<label>14.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Elaraby]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Soliman]]></surname>
<given-names><![CDATA[H. Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Abdel-Atty]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Mohamed]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Joint 2D-DOA and Carrier Frequency Estimation Technique Using Nonlinear Kalman Filters for Cognitive Radio]]></article-title>
<source><![CDATA[IEEE Access]]></source>
<year>2017</year>
<volume>5</volume>
<numero>1</numero>
<issue>1</issue>
</nlm-citation>
</ref>
<ref id="B15">
<label>15.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schmidt]]></surname>
<given-names><![CDATA[R. O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Multiple Emitter Location and Signal Parameter Estimation]]></article-title>
<source><![CDATA[IEEE Transactions on Antennas and Propagation]]></source>
<year>1986</year>
<volume>34</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>276-80</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Patwari]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Reddy]]></surname>
<given-names><![CDATA[G. R.]]></given-names>
</name>
</person-group>
<source><![CDATA[1D Direction of Arrival estimation using RootMUSIC and ESPRIT for dense uniform linear arrays]]></source>
<year>2017</year>
<conf-name><![CDATA[ 2ndIEEE International Conference On Recent Trends in Electronics Information &amp; Communication Technology (RTEICT)]]></conf-name>
<conf-loc>Nueva Deli, India </conf-loc>
<page-range>667-72</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Haque]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Han]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Bajor]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Flexible Architectures for Concurent Reception of Multiple RF Carriers and Compressed Sampling Signal Detection in Frequency and Direction of Arrival]]></source>
<year>2019</year>
<conf-name><![CDATA[ IEEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond (IMC-5G)]]></conf-name>
<conf-loc>Atlanta, USA </conf-loc>
<page-range>1-3</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hussain]]></surname>
<given-names><![CDATA[A. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Tayem]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Soliman]]></surname>
<given-names><![CDATA[A.-H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Computationally Efficent Forward/ Backward Averaged DOA Estimation of Coherent Sourece Pairs]]></source>
<year>2021</year>
<conf-name><![CDATA[ 94thVehicular Technology Conference]]></conf-name>
<conf-loc>Helsinki, Finlandia </conf-loc>
<page-range>1-7</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Song]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<source><![CDATA[An Effective DOA Estimation Method of Coherent Signals Based on Reconstruct Weighted Noise Subspace]]></source>
<year>2017</year>
<conf-name><![CDATA[ 29thChinese Control And Decision Conference (CCDC)]]></conf-name>
<conf-loc>Chongqing, China </conf-loc>
<page-range>2218-22</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alhamed]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Tayem]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Alshawi]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Alshebeili]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Alsuwailem]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Hussain]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[FPGA-based real-time implementation for direction-of-arrival estimation]]></article-title>
<source><![CDATA[The Journal of Engineering]]></source>
<year>2017</year>
<volume>2017</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>260-5</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kyungoon]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Hyunwook]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Jang]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Online Calibration for LTE- Based Antenna Array System]]></article-title>
<source><![CDATA[International Journal of Antennas and Propagation]]></source>
<year>2016</year>
<volume>4</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>1-10</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Famorij]]></surname>
<given-names><![CDATA[O. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Ogundepo]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Qi]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An Intelligent Deep Learning-Based Direction-of-Arrival Estimation Scheme Using Spherical Antenna Array With Unknown Mutual Coupling]]></article-title>
<source><![CDATA[IEEE Access]]></source>
<year>2020</year>
<volume>8</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>179259-1</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Al-Dabbagh]]></surname>
<given-names><![CDATA[M. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Gaber]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Omar]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Phase Calibration of Massive MIMO System for Directiom of Arrival Applications]]></source>
<year>2019</year>
<conf-name><![CDATA[ EEE MTT-S International Microwave Conference on Hardware and Systems for 5G and Beyond (IMC-5G)]]></conf-name>
<conf-loc>Atlanta, USA </conf-loc>
<page-range>1-3</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
