基于MIMO技术的山体滑坡雷达

Research of Landslide Monitoring Radar Based on MIMO Technology

现有山体滑坡雷达是轨道式的,这样就需要精确控制雷达的运动来获得高方位向分辨率,因此,硬件设备要求极高。利用多输入多输出(MIMO)技术通过分时发射和接收信号来获取高方位向分辨率,可以免去雷达运动,从而简化了雷达设备和降低雷达成本。此外,结合步进频连续波技术可以使山体滑坡雷达保持高距离向分辨率的同时进一步降低对硬件的要求,更易于工程实现,成本更低。通过MATLAB仿真初步验证了该方案的可行性。

The existing landslide monitoring radar is based on a rail,so the motion of the radar should be precisely controlled to obtain high azimuth resolution.It causes that the stability and accuracy of current landslide monitoring radar is highly depended on complex and expensive equipment.The high azimuth resolution also can be obtained through Multiple-Input Multiple-Output(MIMO)technology by time-sharing to transmit and receive signals.By this way landslide monitoring radar doesn't require to move,so it is helpful to simplify the radar equipment and reduce its cost.What's more,combining stepped frequency continuous wave technology,landslide monitoring radar can be more easier for project implementation without sacrificing high range resolution.The feasibility of new landslide monitoring radar has been validated by MATLAB simulation.