Abstract
For imaging radar, higher angular resolution is essential, yet it requires a larger number of antenna elements in enlarged regular arrays. By using antenna-array sparsity, improved imaging performance can be achieved without the increase of antenna elements and the corresponding cost. A two-step synthesis procedure is developed and validated with a model of a 3D MIMO mm-wave imaging radar. Through simulations, it is shown that with a sparse transmit and receive array, an improvement in beam-width and side-lobe levels in the virtual array patterns for MIMO radars can be achieved. The model is confirmed by an experiment using the Walabot-60GHz radar from Vayyar.
| Original language | English |
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| Title of host publication | EuRAD 2020 - 2020 17th European Radar Conference |
| Publisher | Institute of Electrical and Electronics Engineers |
| Pages | 342-345 |
| Number of pages | 4 |
| ISBN (Electronic) | 9782874870613 |
| DOIs | |
| Publication status | Published - 3 Feb 2021 |
| Event | 17th European Radar Conference, EuRAD 2020 - Utrecht, Netherlands Duration: 10 Jan 2021 → 15 Jan 2021 |
Conference
| Conference | 17th European Radar Conference, EuRAD 2020 |
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| Country/Territory | Netherlands |
| City | Utrecht |
| Period | 10/01/21 → 15/01/21 |
Bibliographical note
Funding Information:ACKNOWLEDGMENT This work is part of the HTSM research program under project number 13922, funded by NWO-TTW (Netherlands Organization for Scientific Research). The authors would like to thank Radarxense B.V. and Vayyar Imaging Ltd for supporting this research.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
Keywords
- antenna arrays
- millimeter wave radar
- MIMO radar
- radar antennas
- radar imaging
- sparse arrays