Indoor Moving Target Detection Method Based On Azimuthal Accumulation For UAV Mounted Dual Channels Radar

Through-the-Wall radar transmits an ultra-wideband (UWB) signal capable of penetrating the walls, which can be used to detect targets behind obstacles. Combined with unmanned aerial vehicles (UAVs), the detection of moving targets inside buildings can be realized with high flexibility. However, in the through-the-wall scenario, the target motion leads to poor imaging results and deterioration of detection. So that, a moving target detection method based on azimuthal energy accumulation is proposed in this paper. In detail, firstly, the displaced phase center antennas (DPCA) method is used to suppress the stationary clutters. Then, the keystone transform and azimuthal accumulation are employed. Finally, the detection results are derived by using 1D-CFAR. The effectiveness of the proposed method is demonstrated by experiments.