基于改进FRACTA算法的多通道SAR动目标检测技术

Moving Target Detection for Multi-channel SAR Based on Improved FRACTA Algorithm

该文针对实际非均匀杂波环境对多通道SAR/GMTI动目标检测性能的影响,提出了一种改进型FRACTA算法。该算法将STAP中的FRACTA算法引入多通道SAR系统中,并进行改进,提高了其在多通道SAR系统中的检测性能和运算速度。实测数据处理结果表明,与传统的检测方案相比,该文算法能够在非均匀环境中明显地提高检测性能,是一种非均匀环境中鲁棒的多通道SAR动目标检测算法。

According to the performance loss of moving target detection for a multi-channel SAR/GMTI system caused by the heterogeneous clutter environments,this paper proposes a new improved FRACTA algorithm. It arises from the improvements of the FARCTA algorithm and is proved to be more effective and computationally efficient for a multi-channel SAR system. As is verified by experimental results,this algorithm greatly overperforms the traditional detection method and shows robust in heterogeneous environments.