论文标题
TDM-MIMOFMCW雷达的基于相位差的多普勒歧义方法
Phase Difference based Doppler Disambiguation Method for TDM-MIMOFMCW Radars
论文作者
论文摘要
最先进的汽车雷达传感器使用Mutlipliple Mutiple-Output（MIMO）方法来获得更好的角度分辨率。时间划分多路复用（TDM）方案通常用于实现发射机的正交性。除了其实现方面的简单性外，TDM方案的最大最大明确多普勒与发射器数量的最大多普勒的缩减有缺点。在本文中，提出了一种基于相位差的多普勒消除歧义方法，以恢复最大的明确多普勒，这相当于一个发射器。当发射机数量较大时，此方法效果很好。通过模拟和测量数据证明了所提出的方法。
State-of-the-art automotive radar sensors use a Mutliple-Input Mutiple-Output (MIMO) approach to obtain a better angular resolution. Time-Division Multiplexing (TDM) scheme is commonly applied to realize the orthogonality in time at the transmitter. Apart from its simplicity in implementation, TDM scheme has the drawback of a reduced maximum unambiguous Doppler proportional to the number of transmitters. In this paper, a phase difference based Doppler disambiguation method is proposed to regain the maximum unambiguous Doppler which is equivalent to only one transmitter. This method works well when the number of transmitters is large. The proposed method is demonstrated with simulation and measurement data.
