论文标题
基于IEEE 802.11AD波形的雷达成像
Radar Imaging Based on IEEE 802.11ad Waveform
论文作者
论文摘要
通信频带的毫米波（mmwave）频谱的扩展使使用单个硬件实现关节雷达和通信系统变得容易。在本文中，我们提出了基于IEEE 802.11AD波形的雷达成像，以进行车辆设置。反合成孔径雷达（ISAR）成像的必要参数是往返延迟，多普勒偏移和车辆速度的采样版本。使用嵌入在IEEE 802.11AD序言上的Golay互补序列的相关性能估算延迟。首先，使用雷达回报信号从最小平方估计获得多普勒移位，并通过通过相位旋转纠正多普勒移位的相位不确定性来进行完善。车辆速度是根据估计的多普勒偏移和运动方程式确定的。最后，与获得的参数形成了ISAR图像。仿真结果表明，可以从逼真的车辆设置的点散射器模型中获得可识别的ISAR图像。
The extension to millimeter-wave (mmWave) spectrum of communication frequency band makes it easy to implement a joint radar and communication system using single hardware. In this paper, we propose radar imaging based on the IEEE 802.11ad waveform for a vehicular setting. The necessary parameters to be estimated for inverse synthetic aperture radar (ISAR) imaging are sampled version of round-trip delay, Doppler shift, and vehicular velocity. The delay is estimated using the correlation property of Golay complementary sequences embedded on the IEEE 802.11ad preamble. The Doppler shift is first obtained from least square estimation using radar return signals and refined by correcting the phase uncertainty of Doppler shift by phase rotation. The vehicular velocity is determined from the estimated Doppler shifts and an equation of motion. Finally, an ISAR image is formed with the acquired parameters. Simulation results show that it is possible to obtain recognizable ISAR image from a point scatterer model of a realistic vehicular setting.
