摘要
汽车智能驾驶辅助系统(ADAS)和无人驾驶汽车是目前汽车领域非常热门的方向,而车载毫米波雷达又是该领域中非常重要的传感器,为车辆决策和执行系统提供目标信息(距离、速度和方位角)。随着技术的发展,现有的SIMO毫米波雷达的分辨能力难以满足自适应巡航(ACC)和紧急制动(AEB)的要求。提出了基于数字波束成形技术的车载MIMO毫米波雷达,采用两发八收天线,在发射天线利用频分复用(FDM)调制,从而达到接收天线不模糊接收回波信号。通过测试和仿真,满足水平方向1度、俯仰方向2度分辨率的3D雷达,进一步提高雷达在ADAS与无人驾驶领域的探测性能。
The advanced driving assistance system (ADAS) and automatic vehicle are very popular in the current automotive field, and the millimeter -wave radar is a very important sensor in the field, providing target information ( range, speed, angle) for vehicle decision and execution systems. With the development of technology, the resolution of existing SIMO millimeter - wave radar is difficult to meet the requirements of adaptive cruise control (ACC) and autonomous emergency braking (AEB). Aiming at this problem, a vehicle MIMO millimeter - wave radar based on digital beamforming technology is proposed, using two transmit antennas ( TX), eight receive antennas (RX) and frequency division multiplexing (FDM). Through testing and simulation, horizontal direction angle accuracy is 1 degree, and vertical direction angle accuracy is 2 degree, in order to further improve the radar detection performance in the field of ADAS and automatic driving.
出处
《佳木斯大学学报(自然科学版)》
CAS
2018年第1期111-113,130,共4页
Journal of Jiamusi University:Natural Science Edition
基金
"科技部"十三五重点专项(2016YFB0100901)
关键词
MIMO雷达
数字波束成形
角分辨率
millimeter- wave radar
digital beamforming
angular resolution