Optimum two-pulse UWB detector for different target fluctuation models

Single pulse UWB detectors do not have good performance as two-pulse or multi-pulse detectors. The more signals we use the better performance we have if we use optimum detectors. In this paper, we derive two-pulse optimum detectors for different target fluctuation models and extend them to multiple pulses. In each section of fluctuation model, suboptimum detectors are proposed to have good performance for targets with different number of bright points.