On the Influence of the Transformation Matrix in Compressed Spherical Near-Field Measurements

被引:0
作者
Culotta-Lopez, Cosine [1 ]
Heberling, Dirk [1 ,2 ]
机构
[1] Rhein Westfal TH Aachen, Aachen, Germany
[2] Fraunhofer Inst High Frequency Phys & Radar Tech, Wachtberg, Germany
来源
2020 14TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP 2020) | 2020年
关键词
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The radiation characteristics of an object are represented by the coefficients vector of a Wigner-D expansion. For most physical antennas and with appropriate choice of the expansion's center, the coefficients vector, also called the Spherical Mode Coefficients (SMCs) vector, is proven sparse. The sparsity of the vector allows the undersampling of the system and the reconstruction of the SMCs vector by application of l(1)-minimization methods. However, the reconstructed results, for equivalent analytical formulations of the problem, change depending on the used transformation matrix. In this work, the SMCs of two antennas calculated from measurement data are used to simulate compressed spherical near-field measurements. The sampling schemes used for the compressed measurements are calculated based on the minimum coherence of the sampling matrix for the basis functions. The reconstruction error is assessed for a different formulation of the problem, using a different transformation matrix and highlighting the performance difference.
引用
收藏
页数:4
相关论文
共 50 条
  • [31] Phaseless Spherical Near-Field Antenna Measurements With Reduced Samplings
    Mezieres, Nicolas
    Le Coq, Laurent
    Fuchs, Benjamin
    IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2023, 71 (09) : 7447 - 7456
  • [32] Spherical near-field to far-field transformation by phase retrieval method
    Ohashi, Eriko
    Arai, Hiroyuki
    IEICE COMMUNICATIONS EXPRESS, 2013, 2 (08): : 325 - 329
  • [33] High Performance Dual Polarized Near-Field Probe at V-Band for Spherical Near-Field Measurements
    Giacomini, A.
    Schirosi, V.
    Foged, L. J.
    Szpindor, E.
    Zhang, W.
    Iversen, P. O.
    2018 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING, 2018, : 1209 - 1210
  • [34] Crack detection using spherical incident waves and near-field measurements
    Alves, CJS
    Ribeiro, PMC
    BOUNDARY ELEMENTS XXI, 1999, 6 : 355 - 364
  • [35] The alignment of a spherical near-field measurement system using electrical measurements
    Newell, AC
    Hindman, G
    IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM - ANTENNAS: GATEWAYS TO THE GLOBAL NETWORK, VOLS 1-4, 1998, : 1327 - 1330
  • [36] Numerical and Experimental Investigation of Phaseless Spherical Near-Field Antenna Measurements
    Rodriguez Varela, Fernando
    Fernandez Alvarez, Javier
    Galocha Iraguen, Belen
    Sierra Castaner, Manuel
    Breinbjerg, Olav
    IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2021, 69 (12) : 8830 - 8841
  • [37] Robustness of Sparse Reconstruction Methods in Spherical Antenna Near-Field Measurements
    Hofmann, Bernd
    Kraus, Oliver
    Eibert, Thomas F.
    2020 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION AND NORTH AMERICAN RADIO SCIENCE MEETING, 2020, : 1773 - 1774
  • [38] Polyhedral Sampling Structures for Phaseless Spherical Near-Field Antenna Measurements
    Guth, Adrien
    Culotta-Lopez, Cosme
    Maly, Johannes
    Rauhut, Holger
    Heberling, Dirk
    2020 ANTENNA MEASUREMENT TECHNIQUES ASSOCIATION SYMPOSIUM (AMTA), 2020,
  • [39] Combination of Spherical and Planar Scanning for Phaseless Near-Field Antenna Measurements
    Rodriguez Varela, Fernando
    Galocha Iraguen, Belen
    Sierra Castaner, Manuel
    Alvarez, Javier Fernandez
    Mattes, Michael
    Breinbjerg, Olav
    2019 41ST ANNUAL SYMPOSIUM OF THE ANTENNA MEASUREMENT TECHNIQUES ASSOCIATION (AMTA 2019), 2019,
  • [40] Spherical Near-Field Alignment Sensitivity for Polar and Equatorial Antenna Measurements
    Pelland, Patrick
    Hindman, Greg
    van Rensburg, Daniel Janse
    AMTA 2016 PROCEEDINGS, 2016,