中文摘要：

提出了一种基于不同编码方案和马赫一曾德尔干涉（MZI）效应的可重构超宽带（UWB）信号产生方案。仿真和实验结果表明，仅仅通过改变编码器的编码规则，即可实现正、负高斯单边带（monocycle）脉冲和正、负近似高斯双边带（Quasi-doublet）脉冲。

英文摘要：

A reconfigurable ultra-wideband （UWB） pulse generation is proposed and experimentally demon- strated based on Mach-Zehnder interferometer （MZI）. By utilizing different encodings, a pair of polarity-re- versed monocycle pulses and a pair of polarity-reversed quasi-doublet pulses are obtained, respectively. Fur- thermore, different pulse modulation schemes such as monocycle-OOK and quasi-doublet-BPM are success- fully achieved without increasing the complexity of proposed structure.