Summary
International Symposium on Antennas and Propagation
2010
Session Number:3TF3
Session:
Number:3TF3-5
Study on DOA/DOD Estimation using a Quasi MIMO System
Kazuhiro Kaneko, Takahiro Aoyagi, Hiroyoshi Yamada, Yoshio Yamaguchi,
pp.-
Publication Date:2010/11/23
Online ISSN:2188-5079
Summary:
In recent years, the MIMO (Multiple-Input Multiple-Output) radar have been attracting attention. The MIMO radar system is expected to increase the maximum number of targets that can be uniquely identified and to detect target/multipath waves separately [1]. The MIMO radar uses arrays both in transmitter and receiver, and it can separate direction of departure (DOD) of waves as well as direction of arrival (DOA). For this reason, MIMO radar can discriminate targets from multipath waves. In this report, we consider DOA/DOD estimation performance of a MIMO system. As discussed in [2], effectiveness of the MIMO radar compared with traditional radars is not improved under same transmitting power or on a term of hardware. However, application of the MIMO to the short-range radar is still attractive because of its high adaptivity of beam/null steering property. In this report, we consider performance a quasi MIMO system by using switching transmit array as a fundamental study. This system is equivalent to channel sounders for DOA/DOD estimation. We discuss a characteristic using a quasi MIMO system with two typical DOA/DOD estimation methods, beamformer method and Capon method.