摘要
针对传统机载合成孔径雷达(SAR)对地面非合作运动目标成像中存在的运动补偿难题,通过空间并行采样获取目标散射信息,提出了一种机载MIMO雷达的高分辨成像方法.与机载SAR不同在于该成像方法采用单次快拍的方式,从而可避免对非合作运动目标进行运动补偿.同时采用单次快拍成像方法可避免传统SAR方位向上长时间多脉冲采样积累,提高了信息获取的实时性.仿真结果证实了所提出方法的可行性.
Aimed at the difficulty of motion compensations involved in the non-cooperative moving target imaging via traditional airborne synthetic aperture radar（ASAR）,a high resolution imaging approach of the airborne MIMO radar was proposed in terms of spatial parallel sampling to obtain the target scattering information.The imaging method differs from the conventional ASAR in that the single-shot mode is employed so that the motion compensation of thenon-cooperativemoving can beprecluded.Furthermore,thelong multi-pulse sampling accumulation along the conventional SAR bearing can be avoided by using the single-shot imaging method,improving the real-time of acquiring information.Simulation results verify that the proposed method is of feasibility.
出处
《空军雷达学院学报》
2010年第4期235-238,243,共5页
Journal of Air Force Radar Academy
基金
国家自然科学基金资助项目(60772152)
关键词
多输入多输出雷达
合成孔径雷达
高分辨成像
单次快拍成像
运动补偿
multi-input and multi-output radar
synthetic aperture radar（SAR）
high resolution imaging
single-shot imaging
motion compensation
