超宽带冲激脉冲正交解调接收机系统反射校正算法及其实现

Reflection Analysis and Correction Method for UWB Impulse Quadrature Demodulation Receivers

基于超宽带冲激脉冲的信号特征,提出了超宽带正交解调接收机系统中脉冲信号的反射模型与校正算法。通过时域瞬态传输线模型、信号流图模型分析,指出整个系统可等效为一个延时滤波网络。最后提出了拟合该等效延时滤波网络,求解其补偿网络的具体校正算法。在实际系统目标探测的外场试验中,也验证了模型分析与校正算法的正确性和有效性。

Based on the signal characters of impulse, the system reflection model, in UWB impulse quadrature demodulation receivers,is analyzed. The time-domain transient transmission line model and the sign flow graph model are applied to this analysis process. It＇ s pointed out, that the whole system can be seen as a delay-filter network. A novel method, to correct the reflection errors, is presented. In the real system,the method has been realized,and a perfect result is gained,in the target detection outdoor test.