UWB脉冲的数字化处理研究

针对UWB通信系统UWB脉冲的直接数字化，要求传输信号单脉冲宽度很窄且幅度很低，对A／D转换器的量化阶数和采样速度有很高的要求。通过对量化阶数、采样抖动误差和采样率对检测UWB脉冲影响的分析，得出量化阶数和采样率对系统的性能影响小，并且通过减小跟踪误差可以降低采样抖动误差对系统的影响。

Study on Digital Process of UWB Pulse

In order to resolve the problem that the UWB pulse directly becomes digital in communication system, the width of transmitted signal single pulse is required to be extremely narrow and to have low amplitude, high-speed and high-resolution A/D converter is also required. The analyzing result of A/D reaolution, sampling dithering error and sampling frequency effect on the UWB communication system showed that those from A/D resolution and sampling frequency are very low, and the impact of sampling dithering can be restrained by decreasing the tracking error.