A receive technique integrated radar and radar countermeasure reconnaissance based on dynamic channelization is proposed to resolve the problem of deferent characteristics between radar and radar countermeasure reconnaissance receiver. First, the intermediate frequency bandwidth is decomposed to many subbands using cosine modulaed filter banks. Further, the nonuniform dynamic channelization is realized by using the technique of spectrum sensing and adjacent channel merging. At last, the echo of radar and radiation of emitter can be received integrated based on nonuniform dynamic channelization. A method of design high-complexity prototype filter is introduced to satisfy the request of integrated receiver on instantaneous dynamic range, sensitivity, surveillance bandwidth and frequency resolution. Theoretical analysis and computer simulation illustrate efficiency of this integrated receive technique.%针对雷达接收机和雷达对抗侦察接收机存在的不同特征,提出了基于动态信道化的雷达与雷达对抗侦察一体化接收技术.首先利用余弦调制滤波器组将中频带宽分解为若干子带,再通过频谱感知和子带合并实现非均匀动态信道化,最后利用非均匀动态信道化技术分别接收雷达回波信号和辐射源直达波信号.为了满足一体化接收机的瞬时动态范围、灵敏度、监视带宽以及频率分辨率等性能指标的要求,本文引入一种大M值高阻带衰减原型滤波器设计方法.理论分析和仿真实验验证了该一体化接收技术的有效性.
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