对于宽带数字阵列雷达而言,通道之间的幅相特性不一致(即通道失配)会影响雷达阵列信号处理的性能,需要对各通道进行通道均衡来补偿通道失配的损失。基本的通道均衡算法分为时域、频域以及自适应均衡算法,文中通过仿真比较了各类型算法的均衡能力,并着重考虑了参考通道的选择对均衡结果的影响,由此得到通道均衡的最优解决方法。最后,通过雷达工程实验测试,验证了文中宽带通道均衡方法的有效性及最优结果,所得结论对于实际工程设计中改善宽带波束性能具有一定借鉴意义。

For a wideband digital array radar, the inconsistence of amplitude and phase between radar passes could make a huge difference to the performance of signal processing, which is just channel equalization works for. Traditional channel equalization algorithms can be divided into time domain, frequency domain and self-adaption types, between which this paper compares the methods' abilities and gives an extra focus on reference channels. In the end, this paper proves the validity of different channel equalization methods by means of actual radar tests, which at the same time draw an aid on practical engineering radar designs.

TN957.52