无人机载太赫兹合成孔径雷达成像分析与仿真

Analysis and simulation of UAV terahertz wave synthetic aperture radar imaging

摘要:

将太赫兹合成孔径雷达与无人机相结合，详细分析了其技术特点，重点研究了合成孔径雷达多个典型频段平均功率、理论方位向分辨力、最大距离徙动分量、条带宽度与其他关键参数的关系，给出了太赫兹合成孔径雷达的适用条件。针对低空无人机载平台、点阵目标，采用距离多普勒算法进行成像仿真，取得名义空间分辨力为0.3 m×0.3 m的高分辨力图像。

Abstract:

The technique features of Unmanned Aerial Vehicles(UAV) terahertz wave Synthetic Aperture Radar(SAR) imaging were analyzed．The relation among average power of radio transmitter，resolution in azimuth，maximum range migration, strip width and other parameters of SAR in typical frequency bands was discussed．For multiple scatter targets，based on the Range-Doppler algorithm，the imaging simulation was conducted to verify some operation characteristics of UAV THz SAR and obtain high resolution radar image(0.3 m×0.3 m)．