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Knowledge-aided mono-pulse forward-looking imaging for airborne radar by exploiting the antenna pattern information

机译:利用天线方向图信息的机载雷达知识辅助单脉冲前视成像

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摘要

A knowledge-aided mono-pulse forward-looking imaging algorithm to enhance the performance of airborne radar is proposed. Firstly, the ideal mono-pulse imaging model based on the dual-channel radar system is analysed and the mismatch model of the receiving channel is constructed. Then the mismatch phase error and a modified mono-pulse curve (MPC) are derived based on the least square (LS) method by taking advantage of a prior antenna pattern information. Finally, the modified MPC is utilised to perform the direction-of-arrival (DOA) estimation of each scattering centres in mono-pulse imaging. Real airborne radar data experiments are given to verify the effectiveness of the proposed algorithm.
机译:提出了一种提高机载雷达性能的知识辅助单脉冲前视成像算法。首先,分析了基于双通道雷达系统的理想单脉冲成像模型,并建立了接收通道的失配模型。然后,利用现有的天线方向图信息,基于最小二乘(LS)方法得出失配相位误差和修正的单脉冲曲线(MPC)。最后,修改后的MPC用于在单脉冲成像中执行每个散射中心的到达方向(DOA)估计。通过实际机载雷达数据实验,验证了所提算法的有效性。

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