当前位置: X-MOL 学术IEEE Trans. Aerosp. Electron. Sys. › 论文详情
OFDM-MIMO Radar With Optimized Nonequidistant Subcarrier Interleaving
IEEE Transactions on Aerospace and Electronic Systems ( IF 2.797 ) Pub Date : 2019-05-30 , DOI: 10.1109/taes.2019.2920044
Gor Hakobyan; Michael Ulrich; Bin Yang

Radar with digitally generated orthogonal frequency division multiplexing (OFDM) signals is an emerging research field that has been studied for the past few years. Another trend for radar is the multiple-input multiple-output (MIMO) architecture used for an efficient direction-of-arrival estimation. These two technologies can be efficiently combined into an OFDM-MIMO radar with novel interleaving concepts enabled by the multicarrier structure of OFDM. By multiplexing of transmit antennas via subcarrier interleaving, the whole bandwidth can be utilized by all transmit antennas simultaneously. In case of equidistant subcarrier interleaving, however, the unambiguously measurable distance range is reduced. To avoid this reduction, we propose an OFDM-MIMO radar concept with nonequidistant subcarrier interleaving (NeqSI) that maintains the full unambiguously measurable distance range. Since the NeqSI leads to sidelobes in distance estimation, we present an approach for generation of near-to-optimum nonequidistant interleaving patterns. To further complement the proposed concept, compressed sensing based distance–velocity estimation algorithm that achieves a high dynamic range in both distance and velocity dimensions is used. We study the performance of the presented concept in simulations and validate it by measurements with an OFDM-MIMO radar prototype.
更新日期:2020-02-11

 

全部期刊列表>>
化学/材料学中国作者研究精选
Springer Nature 2019高下载量文章和章节
《科学报告》最新环境科学研究
ACS材料视界
自然科研论文编辑服务
中南大学国家杰青杨华明
剑桥大学-
中国科学院大学化学科学学院
材料化学和生物传感方向博士后招聘
课题组网站
X-MOL
北京大学分子工程苏南研究院
华东师范大学分子机器及功能材料
中山大学化学工程与技术学院
试剂库存
天合科研
down
wechat
bug