Design of 24 GHz Radar with Subspace-Based Digital Beam Forming for ACC Stop-and-Go System

ETRI Journal

关键词: stop-and-go;    adaptive cruise control;    digital beam forming;    FMCW;    77 GHz radar;    24 GHz radar;   

Others  :  1185907
DOI  :  10.4218/etrij.10.0210.0107

【 摘 要 】

For an adaptive cruise control (ACC) stop-and-go system in automotive applications, three radar sensors are needed because two 24 GHz short range radars are used for object detection in an adjacent lane, and one 77 GHz long-range radar is used for object detection in the center lane. In this letter, we propose a single sensor-based 24 GHz radar with a detection capability of up to 150 m and ±30° for an ACC stop-and-go system. The developed radar is highly integrated with a high gain patch antenna, four channel receivers with GaAs RF ICs, and back-end processing board with subspace based digital beam forming algorithm.

   

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