干扰背景下瞬时极化测量雷达的目标识别预处理技术

该文以瞬时极化测量雷达的攻防对抗为背景，分析了单极化有源干扰机形成的假目标的极化散射特性。分析结果表明，在同样的干扰样式下，干扰机在分时极化测量雷达和瞬时极化测量雷达下生成的假目标具有不同的散射特性。在单极化有源假目标极化散射特性分析基础上，针对对抗条件下极化雷达无法准确测量目标散射矩阵的情况，提出了一种基于不完整极化测量的目标识别预处理方法。该方法能够有效获取目标三个极化散射矩阵序列，它们可以用作目标识别的稳健特征量。

Preprocessing of Target Recognition of the Instantaneous Polarimetric Radar in the Jamming Situation

The polarization scattering matrix characteristic of the active decoys produced by the single polarized repeater is analysed under the background of the anti-jamming of the instantaneous polarimetric radar. It is shown that the characteristics of active decoys measured by the interleaved-pulse polarization agile radar and the instantaneous polarimetric radar are different, though the active decoys is produced by the same jamming mode. Further more, considering the scattering matrix may not be able to be measured accurately in the jamming situation, a preprocessing method in target reorganization based on the inadequate polarization characteristics is produced, employing which the three series of scattering matrix of target can be obtained which can be used as the robust features in target recognition.