论文标题
基于CDM的虚拟FMCW MIMO雷达成像在79GHz
CDM Based Virtual FMCW MIMO Radar Imaging at 79GHz
论文作者
论文摘要
在79GHz运行的多个输入多重输出（MIMO）频率调制连续波（FMCW）雷达是紧凑，光线和具有成本效益的设备，具有较低的峰值功率比，这些设备在不同区域（例如汽车行业和无人驾驶汽车（UAV）雷达）雷达雷达成像等不同区域。为了使结构保持小而简单，这些雷达带有少量的发射器和接收器。可以使用时间分级多路复用（TDM），频级多路复用（FDM）或代码除法多路复用（CDM）等技术实际上增加元素的数量，因此可以实现更高的角度分辨率。基于TDM和FDM的虚拟FMCW MIMO雷达成像过程均已报道。但是，据我们所知，基于CDM的虚拟FMCW MIMO雷达尚未受到任何关注。在本文中，我们将使用79GHz FMCW MIMO雷达，并应用CDM方法的想法来增加元素的数量，从而增强了角度分辨率。
Multiple Input Multiple Output (MIMO) Frequency Modulated Continuous Wave (FMCW) radars operating at 79GHz are compact, light and cost effective devices with low peak-to-average power ratio that have applications in different areas such as automotive industry and Unmanned Arial Vehicle (UAV) based radar imaging. In order to keep the structure small and simple, these radars come with small number of transmitters and receivers. The number of elements can be virtually increased using techniques such as Time Division Multiplexing (TDM), Frequency Division Multiplexing (FDM) or Code Division Multiplexing (CDM) and as a result higher angular resolution can be achieved. Both TDM and FDM based virtual FMCW MIMO radar imaging process have been reported in literature. However, to the best of our knowledge CDM based virtual FMCW MIMO radar has not received any attention. In this paper we will be using an 79GHz FMCW MIMO radar and apply the idea of the CDM method to increase the number of elements virtually which in turn enhances the angular resolution.
