Abstract
The paper describes two simple methods allowing phase offsets to be aligned between radiators of transmitting and receiving antenna arrays in a collocated MIMO (Multiple Input Multiple Output) radar. One method uses normalization with averaging, while the second applies SVD (Singular Value Decomposition) of a measurement matrix. To calibrate phase offsets, the measurement of a calibration target at a known angular position must be done. The paper shows numerical comparison to already known method based on normalization by a single element of MIMO measurement matrix and experimental results obtained through the application of the proposed methods to measurement data.
Subject
General Earth and Planetary Sciences
Reference22 articles.
1. MIMO Radar: An Idea Whose Time Has Come;Fishler;Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509),2004
2. An Interferometric MIMO Radar for Bridge Monitoring
3. Design and Imaging of Ground-Based Multiple-Input Multiple-Output Synthetic Aperture Radar (MIMO SAR) with Non-Collinear Arrays
4. Lens Based 77 GHz TDM MIMO Radar Sensor for Angular Estimation in Multitarget Environments;Lutz;Proceedings of the 2013 European Radar Conference,2013
5. TDM Based Virtual FMCW MIMO Radar Imaging at 79 GHz;Hamidi;Proceedings of the 2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM),2018