Space-time adaptive processing airborne radar with coprime pulse repetition interval
Space-time adaptive processing airborne radar with coprime pulse repetition interval
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DOI：
10.1109/radar.2016.8059244
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发表时间：
2016-10
期刊：
影响因子：
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通讯作者：
Yuanbin Ma;Zhaocheng Yang;Jingxiong Huang;Jianjun Huang;Li Kang
中科院分区：
文献类型：
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作者：
Yuanbin Ma;Zhaocheng Yang;Jingxiong Huang;Jianjun Huang;Li Kang
针对互质阵列在波达方向(DOA)估计中的成功，将互质脉冲重复间隔(PRI)的思想引入空时自适应处理(STAP)机载雷达中。通过发射和接收具有共质优先级的脉冲，可以降低发射能量，提高电子对抗能力。我们使用接收脉冲之间的滞后来构造虚拟脉冲。通过使用虚拟脉冲，我们可以获得比真实快照更大尺寸的新快照。利用所构造的快照来估计杂波加噪声协方差矩阵，然后形成STAP滤波器。仿真结果表明，本文提出的互质优先策略STAP雷达可以在减少脉冲的情况下获得良好的性能。
In this paper, motivated by the success of coprime array in the direction-of-arrival (DOA) estimation, we introduce the idea of coprime pulse repetition interval (PRI) into the space-time adaptive processing (STAP) airborne radar. Through transmitting and receiving the pulses with coprime PRI, we can reduce the transmitting energy and improve the capabilities of electronic counter-countermeasures (ECCM). We use the lags between the receiving pulses to construct virtual pulses. By using the virtual pulses, we can obtain a new snapshot with a larger dimension than the real one. The constructed snapshots are exploited to estimate the clutter-plus-noise covariance matrix and then to form the STAP filter. Simulation results show that the proposed coprime PRI strategy STAP radar can achieve a good performance with reduced pulses.