摘要
ISAR运动补偿通常分为两步:距离对准和相位补偿。在现有的相位补偿方法中,相位梯度自聚焦(PGA)算法是较好的一种。本文在把秩一相位估计(ROPE)算法用于ISAR相位补偿后,针对ROPE与PGA两者在ISAR相位补偿中的性能作了详细地分析比较。最后用ISAR外场实测数据比较了它们的成像结果。
Motion compensation in the Inverse Synthetic Aperture Radar (ISAR) usually consists of two parts: range alignment and phase compensation. Of the existing phase compensation methods, the phase gradient autofocus (PGA) algorithm is a better one. In this paper, the rank one phase estimation (ROPE) algorithm is applied to ISAR phase compensation. Subsequently, the performance of the two estimators, ROPE and PGA, are analyzed and compared in detail. Finally, the ISAR real data are processed and the imaging results are compared with each other.
出处
《雷达与对抗》
2003年第1期1-4,57,共5页
Radar & ECM
