Research
Journal publications:
G. Álvarez-Narciandi, J. Laviada and F. Las-Heras, "Short-Time Coherent–Incoherent Synthetic Aperture Radar Processing for a Handheld Imaging System," in IEEE Transactions on Instrumentation and Measurement, vol. 73, pp. 1-9, 2024, Art no. 4502609, doi: 10.1109/TIM.2024.3352706.
M. Garcia-Fernandez, G. Álvarez-Narciandi, F. Las Heras, Y. Alvarez-Lopez, “Comparison of scanning strategies in UAV-mounted multichannel GPR-SAR systems using antenna arrays,” in IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol. 17, pp. 3571-3586, 2024, doi: 10.1109/JSTARS.2024.3351602.
R. Sharma, M. Garcia-Fernandez, G. Álvarez-Narciandi, O. Yurduseven, “Single Radar Image Motion Deblurring Through PSF Estimation and Convolution Regularizer,” in IEEE Transactions on Radar Systems, vol. 2, pp. 84-100, 2024, doi: 10.1109/TRS.2024.3349554.
J. Zhang, R. Sharma, M. Garcia-Fernandez, G. Álvarez-Narciandi, M. A. B. Abbasi and O. Yurduseven, “Deep Learning for Sensing Matrix Prediction in Computational Microwave Imaging with Coded-Apertures,” in IEEE Access, pp. 16844-16855, 2024, doi: 10.1109/ACCESS.2024.3359435.
A. Arboleya-Arboleya, J. Laviada, Y. Álvarez-López, G. Álvarez-Narciandi, F. Las-Heras, C. Luxey, D. Titz, and A. Bisognin, “Freehand System for Probe-fed Antenna Diagnostics by Means of Amplitude-Only Acquisitions,” in IEEE Transactions on Instrumentation and Measurement, 2024 (accepted for publication).
M. García-Fernández, G. Álvarez-Narciandi, Y. Álvarez López and F. Las-Heras, "Array-Based Ground Penetrating Synthetic Aperture Radar on Board an Unmanned Aerial Vehicle for Enhanced Buried Threats Detection," in IEEE Transactions on Geoscience and Remote Sensing, vol. 61, pp. 1-18, 2023, Art no. 5104218, doi: 10.1109/TGRS.2023.3272982.
V. Skouroliakou, A. M. Molaei, M. García-Fernández, G. Álvarez-Narciandi and O. Yurduseven, "Frequency Domain Image Reconstruction for Imaging With Multistatic Dynamic Metasurface Antennas," in IEEE Access, vol. 10, pp. 124728-124737, 2022, doi: 10.1109/ACCESS.2022.3225091.
J. Laviada, G. Álvarez-Narciandi and F. Las-Heras, "Artifact Mitigation for High-Resolution Near-Field SAR Images by Means of Conditional Generative Adversarial Networks," in IEEE Transactions on Instrumentation and Measurement, vol. 71, pp. 1-11, 2022, Art no. 8006011, doi: 10.1109/TIM.2022.3200107.
M. Garcia-Fernandez, G. Álvarez-Narciandi, Y. Alvarez-Lopez, F. Las-Heras, “Improvements in GPR-SAR imaging focusing and detection capabilities of UAV-mounted GPR systems,” ISPRS Journal of Photogrammetry and Remote Sensing, vol. 189, 128-142, July 2022, doi: 10.1016/j.isprsjprs.2022.04.014.
Y. Á. López, M. García-Fernández, G. Álvarez-Narciandi and F. L. -H. Andrés, "Unmanned Aerial Vehicle-Based Ground-Penetrating Radar Systems: A review," in IEEE Geoscience and Remote Sensing Magazine, vol. 10, no. 2, pp. 66-86, June 2022, doi: 10.1109/MGRS.2022.3160664.
T. V. Hoang, R. Kumar, T. Fromenteze, M. García-Fernández, G. Álvarez-Narciandi, V. Fusco and O. Yurduseven, "Frequency Selective Computational Through Wall Imaging Using a Dynamically Reconfigurable Metasurface Aperture," in IEEE Open Journal of Antennas and Propagation, vol. 3, pp. 353-362, 2022, doi: 10.1109/OJAP.2022.3161128.
H. F. Álvarez, G. Álvarez-Narciandi, F. Las-Heras and J. Laviada, "System Based on Compact mmWave Radar and Natural Body Movement for Assisting Visually Impaired People," in IEEE Access, vol. 9, pp. 125042-125051, 2021, doi: 10.1109/ACCESS.2021.3110582.
G. Álvarez-Narciandi, J. Laviada and F. Las-Heras, "Towards Turning Smartphones Into mmWave Scanners," in IEEE Access, vol. 9, pp. 45147-45154, 2021, doi: 10.1109/ACCESS.2021.3067458.
M. García Fernández, G. Álvarez Narciandi, A. Arboleya, C. Vázquez Antuña, F. L. -H. Andrés and Y. Álvarez López, "Development of an Airborne-Based GPR System for Landmine and IED Detection: Antenna Analysis and Intercomparison," in IEEE Access, vol. 9, pp. 127382-127396, 2021, doi: 10.1109/ACCESS.2021.3112058.
G. Álvarez-Narciandi et al., "Freehand System for Antenna Diagnosis Based on Amplitude-Only Data," in IEEE Transactions on Antennas and Propagation, vol. 69, no. 8, pp. 4988-4998, Aug. 2021, doi: 10.1109/TAP.2021.3060082.
M. García-Fernández, G. Álvarez-Narciandi, Y. Álvarez López, and F. Las-Heras Andrés, “Analysis and Validation of a Hybrid Forward-Looking Down-Looking Ground Penetrating Radar Architecture,” Remote Sensing, vol. 13, no. 6, p. 1206, Mar. 2021, doi: 10.3390/rs13061206.
G. Álvarez-Narciandi, J. Laviada and F. Las-Heras, "Freehand mm-Wave Imaging With a Compact MIMO Radar," in IEEE Transactions on Antennas and Propagation, vol. 69, no. 2, pp. 1224-1229, Feb. 2021, doi: 10.1109/TAP.2020.3013745.
H. Fernández Álvarez, G. Álvarez-Narciandi, M. García-Fernández, J. Laviada, Y. Álvarez López, and F. Las-Heras Andrés, “A Portable Electromagnetic System Based on mm-Wave Radars and GNSS-RTK Solutions for 3D Scanning of Large Material Piles,” Sensors, vol. 21, no. 3, p. 757, Jan. 2021, doi: 10.3390/s21030757.
B. Wu, G. Álvarez-Narciandi and J. Laviada, "Multilayered Circular Dielectric Structure SAR Imaging Using Time-Reversal Compressed Sensing Algorithms Based on Nonuniform Measurement," in IEEE Antennas and Wireless Propagation Letters, vol. 19, no. 9, pp. 1491-1495, Sept. 2020, doi: 10.1109/LAWP.2020.3006991.
G. Álvarez-Narciandi, J. Laviada, Y. Álvarez-López and F. Las-Heras, "Portable Freehand System for Real-Time Antenna Diagnosis and Characterization," in IEEE Transactions on Antennas and Propagation, vol. 68, no. 7, pp. 5636-5645, July 2020, doi: 10.1109/TAP.2020.2978936.
B. Wu, G. Álvarez-Narciandi, and J. Laviada, “Multi-Layered Circular Dielectric Structures’ Synthetic Aperture Radar Imaging Based on Green’s Function Using Non-Uniform Measurements,” Remote Sensing, vol. 12, no. 7, p. 1190, Apr. 2020, doi: 10.3390/rs12071190.
M. García-Fernández, Y. Álvarez-López, A. De Mitri, D. Castrillo, G. Álvarez-Narciandi, and F. Las-Heras, “Portable and Easily-Deployable Air-Launched GPR Scanner,” Remote Sensing, vol. 12, no. 11, p. 1833, Jun. 2020, doi: 10.3390/rs12111833.
G. Alvarez-Narciandi, A. Motroni, M. R. Pino, A. Buffi and P. Nepa, "A UHF-RFID Gate Control System Based on a Recurrent Neural Network," in IEEE Antennas and Wireless Propagation Letters, vol. 18, no. 11, pp. 2330-2334, Nov. 2019, doi: 10.1109/LAWP.2019.2929416.
G. Álvarez-Narciandi, M. López-Portugués, F. Las-Heras and J. Laviada, "Freehand, Agile, and High-Resolution Imaging With Compact mm-Wave Radar," in IEEE Access, vol. 7, pp. 95516-95526, 2019, doi: 10.1109/ACCESS.2019.2929522.
G. Alvarez-Narciandi, J. Laviada, M. R. Pino and F. Las-Heras, "Attitude Estimation Based on Arrays of Passive RFID Tags," in IEEE Transactions on Antennas and Propagation, vol. 66, no. 5, pp. 2534-2544, May 2018, doi: 10.1109/TAP.2018.2811779.
Y. Álvarez López, J. Franssen, G. Álvarez-Narciandi, J. Pagnozzi, I. González-Pinto, and F. Las-Heras, “RFID Technology for Management and Tracking: e-Health Applications,” Sensors, vol. 18, no. 8, p. 2663, Aug. 2018, doi: 10.3390/s18082663.
G. Álvarez-Narciandi, J. Laviada, M. R. Pino and F. Las-Heras, "Phase acquisition techniques for RFID multistatic setups," in Sensors and Actuators A: Physical, vol. 270, pp. 97-107, Feb 2018, doi: 10.1016/j.sna.2017.12.012.
Y. Álvarez-López, M. García-Fernández, G. Álvarez-Narciandi, A. Arboleya-Arboleya, F. Las-Heras, S. García Cortés, and M. Fernández Cabanas, “In situ antenna diagnostics and characterization system based on RFID and Remotely Piloted Aircrafts”, Sensors and Actuators A: Physical, vol. 269, 2018, pp. 29-40, doi: 10.1016/j.sna.2017.11.010.
Y. López, G. Alvarez-Narciandi, and F. Las-Heras, “Sensor network and inertial positioning hybridisation for indoor location and tracking applications,” Int. J. Sens. Netw., vol. 24, no. 4, pp. 242–252, Jan. 2017, doi: 10.1504/IJSNET.2017.085977.
Conference publications:
G. Álvarez-Narciandi, M. Garcia-Fernandez, O. Yurduseven, “Impact of the Unit Cell Distribution of 1-D Dynamic Metasurface Antennas on the Performance of a Computational Imaging System,” 18th EuCAP, Glasgow (United Kindgom), March 2024. Accepted for presentation.
M. Garcia-Fernandez, G. Álvarez-Narciandi, O. Yurduseven, “GPR Imaging Relying on Frequency-Diverse Compressive Antennas,” 18th EuCAP, Glasgow (United Kindgom), March 2024. Accepted for presentation.
V. Skouroliakou, A. Molaei, M. Garcia-Fernandez, G. Álvarez-Narciandi, O. Yurduseven, “A Case Study of Misalignment Errors for Range-Migration-Based Microwave Imaging with Multistatic Dynamic Metasurface Apertures,” 18th EuCAP, Glasgow (United Kindgom), March 2024. Accepted for presentation.
A. Molaei, T.V. Hoang, T. Fromenteze, V. Skouroliakou, R. Kumar, M. Zhao, M. Garcia-Fernandez, G. Álvarez-Narciandi, V. Fusco, O. Yurduseven, “Near-Field Bistatic Microwave Imaging with Dynamic Metasurface Antennas,” 18th EuCAP, Glasgow (United Kindgom), March 2024. Accepted for presentation.
V. Skouroliakou, A. Molaei, M. Garcia-Fernandez, G. Álvarez-Narciandi, O. Yurduseven, “Orthogonal Coding for Millimeter-Wave Imaging Using MIMO Dynamic Metasurface Apertures,” 18th EuCAP, Glasgow (United Kindgom), March 2024. Accepted for presentation.
G. Álvarez-Narciandi, M. García-Fernández, Y. Álvarez-López and F. Las-Heras, "Comparison of Different Height Estimation Sources on the Performance of a UAV-mounted MIMO-SAR Ground Penetrating Radar system," 2023 IEEE Conference on Antenna Measurements and Applications (CAMA), Genoa, Italy, 2023, pp. 161-163, doi: 10.1109/CAMA57522.2023.10352809.
M. García-Fernández, G. Álvarez-Narciandi and O. Yurduseven, "Automated Metrics to Assess the Performance of Computational Imaging Systems," 2023 IEEE Conference on Antenna Measurements and Applications (CAMA), Genoa, Italy, 2023, pp. 471-473, doi: 10.1109/CAMA57522.2023.10352756.
V. Skouroliakou, A. M. Molaei, M. Garcia-Fernandez, G. Alvarez-Narciandi and O. Yurduseven, "Range Migration Algorithm for a Multistatic 3D Compressive Computational Imaging System with Dynamic Metasurface Aperture," 2023 24th International Radar Symposium (IRS), Berlin, Germany, 2023, pp. 1-10, doi: 10.23919/IRS57608.2023.10172481.
V. Skouroliakou, A. Masoud Molaei, M. Garcia-Fernandez, G. Alvarez-Narciandi, R. Kumar and O. Yurduseven, "Fourier-based Image Reconstruction Algorithms for Sparse SAR Data," 2023 34th Irish Signals and Systems Conference (ISSC), Dublin, Ireland, 2023, pp. 1-6, doi: 10.1109/ISSC59246.2023.10162091.
G. Alvarez-Narciandi, M. Garcia-Fernandez and O. Yurduseven, "C-Band Two-Dimensional Dynamic Metasurface Antenna for Through-the-Wall Computational Imaging," 2023 17th European Conference on Antennas and Propagation (EuCAP), Florence, Italy, 2023, pp. 1-4, doi: 10.23919/EuCAP57121.2023.10133518.
M. Garcia-Fernandez, G. Alvarez-Narciandi, F. L. Heras and Y. Alvarez-Lopez, "MIMO-SAR Imaging System on board a UAV," 2023 17th European Conference on Antennas and Propagation (EuCAP), Florence, Italy, 2023, pp. 1-4, doi: 10.23919/EuCAP57121.2023.10133338.
M. Garcia-Fernandez, G. Alvarez-Narciandi and O. Yurduseven, "Frequency-Diverse Metasurface Antenna for Computational Through-Wall Imaging," 2023 17th European Conference on Antennas and Propagation (EuCAP), Florence, Italy, 2023, pp. 1-5, doi: 10.23919/EuCAP57121.2023.10133569.
O. Yurduseven, M. A. Babar Abbasi, T. Fromenteze, M. Garcia-Fernandez, G. Alvarez-Narciandi and R. K. Vincent Fusco, "System Level Analysis of Computational Channel Characterization using Compressive Surfaces," 2023 17th European Conference on Antennas and Propagation (EuCAP), Florence, Italy, 2023, pp. 1-5, doi: 10.23919/EuCAP57121.2023.10133429.
Guillermo Álvarez-Narciandi, Jaime Laviada, Fernando Las-Heras, "Freehand millimeter-wave imaging system based on a highly-integrated MIMO radar module," Proc. SPIE 12111, Passive and Active Millimeter-Wave Imaging XXV, 1211107, 2022, doi: 10.1117/12.2622638.
M. Garcia-Fernandez, G. Álvarez-Narciandi, Y. Alvarez-Lopez, F. Las Heras, "Validation of a UAV-mounted GPR system for landmine and IED detection under operational conditions," Proc. SPIE 12116, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XXIII, 1211613, 2022, doi: 10.1117/12.2622925.
G. Álvarez-Narciandi, J. Laviada and F. Las-Heras, "Impact of the Number of Transmitting-Receiving Channels on the Quality of the Images Obtained by a Millimeter- Wave Freehand Imager," 2022 16th European Conference on Antennas and Propagation (EuCAP), 2022, pp. 1-4, doi: 10.23919/EuCAP53622.2022.9769621.
M. García-Fernández, G. Álvarez-Narciandi, Y. Á. López and F. L. -H. Andrés, "SAFEDRONE project: development of a UAV-based high-resolution GPR system for IED detection," 2022 16th European Conference on Antennas and Propagation (EuCAP), 2022, pp. 1-5, doi: 10.23919/EuCAP53622.2022.9768934.
A. Arboleya, G. Álvarez-Narciandi, J. Laviada, Y.Álvarez-López, C. Luxey, F. Gianesello, F. Las-Heras, A. Bisognin and D. Titz and, “Phaseless Probe-Fed Antenna Measurement by Means of Flexible Freehand System,” 2022 16th European Conference on Antennas and Propagation (EuCAP), 2022.
G. Álvarez-Narciandi, J. Laviada and F. Las-Heras, "Last advances in freehand sensing for mmWave imaging," 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI), 2022, pp. 734-735, doi: 10.1109/AP-S/USNC-URSI47032.2022.9886099.
M. Garcia-Fernandez, G. Alvarez-Narciandi, Y. Alvarez-Lopez and F. L. Heras, "Comparison of subsampling strategies for UAV-mounted subsurface radar imaging systems," 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI), Denver, CO, USA, 2022, pp. 1162-1163, doi: 10.1109/AP-S/USNC-URSI47032.2022.9887155.
F. L. -H. Andrés, Y. Á. López, M. García-Fernández, G. Álvarez-Narciandi and J. L. Martínez, "Prof. Sarkar’s contribution to Antenna Diagnostics and NF-FF Transformation," 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI), 2022, pp. 1524-1525, doi: 10.1109/AP-S/USNC-URSI47032.2022.9887002.
R. Kumar, G. Álvarez-Narciandi, M. García-Fernández, V. Fusco and O. Yurduseven, "Computational Microwave Imaging Based on a Single Electric-Field Scan," 2022 19th European Radar Conference (EuRAD), Milan, Italy, 2022, pp. 1-4, doi: 10.23919/EuRAD54643.2022.9924712.
A. Arboleya, J. Laviada, G. Álvarez-Narciandi, Y.Álvarez-López, F. Las-Heras, C. Luxey, A. Bisognin, D. Titz and F. Gianesello, “Probe-Fed Antenna Diagnosis by Means of Freehand and Phaseless System,” in 2021 IEEE Conference on Antenna Measurements & Applications (CAMA), Antibes Juan-les-Pins, France, 2021.
G. Álvarez-Narciandi, J. Laviada, Y.Álvarez-López, G. Ducournau, C. Luxey, F. Gianesello and F. Las-Heras, “Portable, Freehand System for Antenna Diagnosis Using Amplitude-Only Data,” 2020 14th European Conference on Antennas and Propagation (EuCAP), Copenhagen, Denmark, 2020.
F. Filice, N. Nachabe, F. Gianesello, G. Álvarez-Narciandi, J. Laviada, F. Las- Heras and C. Luxey, “3-D Printed High Efficiency Wideband 2x2 and 4x4 Double-Ridged Waveguide Antenna Arrays for Ku-Band Satcom-On-The- Move Applications,” 2020 14th European Conference on Antennas and Propagation (EuCAP), Copenhagen, Denmark, 2020, pp. 1-5, doi: 10.23919/EuCAP48036.2020.9135680.
F. Las-Heras, J. Laviada, Y. Álvarez-López, A. Arboleya, M. García-Fernández and G. Álvarez-Narciandi, “Antenna Measurements and Signal Processing Techniques,” 2020 14th European Conference on Antennas and Propagation (EuCAP), Copenhagen, Denmark, 2020.
G. Álvarez-Narciandi, J. Laviada and F. Las-Heras, “Evolution of the Image Quality over Time for a Freehand Monostatic mm-Wave Radar Imager,” 2020 14th European Conference on Antennas and Propagation (EuCAP), Copenhagen, Denmark, 2020.
F. Filice, N. Nachabe, F. Gianesello, J. Laviada, G. Álvarez-Narciandi, D. Titz, F. Las-Heras and C. Luxey, “Wideband aperture coupled patch antenna for Ka-band exploiting the generation of surface waves,” 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, Montreal, QC, Canada, 2020, pp. 623-624, doi: 10.1109/IEEECONF35879.2020.9329720.
G. Álvarez-Narciandi, A. Motroni, M. R. Pino, A. Buffi and P. Nepa, "A UHF-RFID gate control system based on a Convolutional Neural Network," 2019 IEEE International Conference on RFID Technology and Applications (RFID-TA), Pisa, Italy, 2019, pp. 353-356, doi: 10.1109/RFID-TA.2019.8892080.
G. Álvarez-Narciandi, J. Laviada, Y. Álvarez-López and F. Las-Heras, “Impact of Sparse Measurements in Freehand Setup for Antenna Characterization,” in 2019 Antenna Measurement Techniques Association Symposium (AMTA), pp. 1-3, San Diego, CA, USA, 2019.
G. Álvarez-Narciandi, J. Laviada, Y. Álvarez-López and F. Las-Heras, "Rapidly Deployable Portable System for Real-Time Antenna Diagnostics and Characterization," 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, Atlanta, GA, USA, 2019, pp. 1689-1690, doi: 10.1109/APUSNCURSINRSM.2019.8889334.
A. Michel, M. R. Pino, G. Álvarez-Narciandi and P.Nepa, “Inventory of Piled metal tubes using RFID technology,” 2019 URSI Asia-Pacific Radio Science Conference (AP-RASC), New Delhi, India, 2019, pp. 1-3, doi: 10.23919/URSIAP-RASC.2019.8738251.
A. Michel, M. R. Pino, G. Álvarez-Narciandi, M. Arrebola and P. Nepa, “Using the Power Transfer Efficiency for RFID detection in Unusual Scenarios,” 2019 URSI International Symposium on Electromagnetic Theory (EMTS), San Diego, CA, USA, 2019, pp. 1-4, doi: 10.23919/URSI-EMTS.2019.8931553.
M. R. Pino, A. Michel, G. Álvarez-Narciandi and P. Nepa, “Read-Range Estimation of UHF-RFID Tags Placed Inside Metal Pipes,” 2019 13th European Conference on Antennas and Propagation (EuCAP), Krakow, Poland, 2019, pp. 1-5.
G. Álvarez-Narciandi, J. Laviada, M. R. Pino and F. Las-Heras, “Passive RFID System for Object Shape Estimation,” in 12th European Conference on Antennas and Propagation (EuCAP’18), London, UK, 2018.
G. Alvarez-Narciandi, J. Laviada, M. R. Pino and F. Las-Heras, "3D location system based on attitude estimation with RFID technology," 2017 IEEE International Conference on RFID Technology & Application (RFID-TA), Warsaw, Poland, 2017, pp. 80-82, doi: 10.1109/RFID-TA.2017.8098881.
G. Álvarez-Narciandi, J. Laviada, M. R. Pino and F. Las-Heras, “Application of MUSIC algorithm to the estimation of objects attitude,” in IEEE-APS Topical Conference on Antennas and Propag. in Wireless Comm., Verona, Italy, 2017.
G.Álvarez-Narciandi, J. Laviada and F. Las-Heras, “Object Attitude Estimation Using Passive RFID Tag Arrays,” 2016 URSI International Symposium on Electromagnetic Theory (EMTS), Espoo, Finland, 2016, pp. 572-574, doi: 10.1109/URSI-EMTS.2016.7571457.
Book chapters:
J. Laviada Martínez, Y. Álvarez López, M. García Fernández, G. Álvarez Narciandi, F. Las Heras, "In-situ acquisition systems for automotive measurements: drone and handheld approaches," in Modern Automotive Antenna Measurement. L. J. Foged and M. Sierra Castañer Eds. Boston/London: Artech House, 2022, ch. 9, pp. 195-219.
Patents:
G. Álvarez-Narciandi, J. Laviada, Y. Álvarez-López and F. Las-Heras (priority date: 05/07/2019), “System and Method for Antenna Diagnosis,” WO2021005250. Protected under PCT. University of Oviedo.
G. Álvarez-Narciandi, J. Laviada and F. Las-Heras (priority date: 25/08/2015), “System and Method for the detection of the orientation of objects or living beings through the use of electromagnetic dispersers,” ES-2562732-B2. University of Oviedo.
Datasets:
Jaime Laviada, Guillermo Álvarez-Narciandi, Fernando Las-Heras, March 16, 2022, "Synthetic aperture radar images for cGAN training", IEEE Dataport, doi: https://dx.doi.org/10.21227/5gzt-cm67.