主瓣欺骗干扰与真实目标场景具有相同的角度,二者在多个表征域具有高度相似性,严重降低了合成孔径雷达系统对真实目标的检测和判断能力。针对该问题,为保证有效抑制主瓣欺骗干扰,文中提出了一种实时快速处理抗主瓣欺骗干扰算法。首先,提出了一种基于方位相位编码的回波恢复框架,并且该框架能够对原始回波数据进行分组处理;其次,提出了一种模块化处理的快速算法来加快所提方法的处理效率;最后,通过点目标和分布式目标仿真实验验证了所提方法的有效性和可行性。通过与传统主瓣欺骗干扰方法进行对比,文中所提方法不仅能够降低计算复杂度,还能减少对系统资源的占用。

The mainlobe deceptive jamming has the same angle as the real target scene, and the two are highly similar in multiple domains, which seriously reducing the detection and judgment capabilities of the synthetic aperture radar system for real targets. To address this issue and ensure effective suppression of mainlobe deceptive jamming, a real-time and fast processing anti-mainlobe deceptive jamming algorithm is proposed in this paper. First, an echo recovery framework based on azimuth phase coding is proposed and the framework can group the raw echo data. Secondly, a fast algorithm for modular processing is proposed to speed up the processing efficiency of the proposed method. Finally, the effectiveness and feasibility performance of the proposed method are verified through point target and distributed targets simulation experiments. By comparing with the traditional mainlobe deceptive jamming method, the proposed method can not only reduce the computational complexity, but also reduce the occupation of system resources.

TN974