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Hyper beamforming with single-sideband time-modulated phased arrays for automotive radar

Published online by Cambridge University Press:  20 March 2023

Yue Ma Open the ORCID record for Yue Ma [Opens in a new window] ,
Chen Miao  and
Wen Wu
Yue Ma*
Affiliation:
Ministerial Key Laboratory of JGMT, Nanjing University of Science and Technology, Xiao Ling Wei200#, Nanjing 210094, China
Chen Miao
Affiliation:
Ministerial Key Laboratory of JGMT, Nanjing University of Science and Technology, Xiao Ling Wei200#, Nanjing 210094, China
Wen Wu
Affiliation:
Ministerial Key Laboratory of JGMT, Nanjing University of Science and Technology, Xiao Ling Wei200#, Nanjing 210094, China
*
Author for correspondence: Yue Ma, E-mail: mayue@njust.edu.cn
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Abstract

In this study, a single-sideband time-modulated phased array (STMPA)-based hyper beamforming (HBF) system for automobile radar is suggested. The left beam and the right beam are generated once the improved STMPA is split into two subarrays. The HBF method is then used to produce the hyper beam. The switching sequence may be adjusted to generate the hyper beam in the desired direction. This study's benefits may be summed up as follows: (1) The hyper beam's sidelobe level is lower and its beamwidth is narrower than the conventional beam, which can help with estimating the direction of arrival. (2) The HBF can be achieved over a very wide scanning range. (3) With time as an additional controllable variable, the system's control mode is flexible and only two channels are needed, which lowers the system's cost and complexity. The effectiveness of the algorithm is tested through simulation, and the results highlight the system's potential when used with automobile radar.

Keywords

Automotive radarhyper beamformingnarrow beamformingtime-modulated phased array

Information

Type
Radar
Information
International Journal of Microwave and Wireless Technologies , Volume 15 , Issue 9 , November 2023 , pp. 1453 - 1459
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Copyright
Copyright © The Author(s), 2023. Published by Cambridge University Press in association with the European Microwave Association

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