Publisher : The Korean Institute of Electromagnetic Engineering and Science
DOI : 10.5515/KJKIEES.2015.26.9.806
Title & Authors
A Study on Accurate Angle Estimation of Multiple Targets for Digital Beam Forming Automotive Radar Lee, Seong-Hyeon; Choi, In-Oh; Kim, Kyung-Tae;
In order to satisfy several conditions with respect to size, weight, and costs, automotive radars use an antenna consisting of a small number of receiving channels. If RELAX technique is applied to the automotive radars, angles of targets located in antenna beam can be estimated as well as the number of the targets. However, a small number of receiving channels in the antenna leads to inaccurate spectral estimation in angle domain, which in turn degrades performance of RELAX technique. Therefore, in this study, root-MUSIC technique coupled with MDL criterion is introduced to decide accurate angles of targets in antenna beam. In simulations, we show superior performance of proposed scheme using simulation results when three point targets are located in antenna beam.