基于有限更新率采样的UWB信号处理技术

UWB signal processing based on sampling with finite rate of innovation

在对有限更新率采样技术分析基础上,基于有限更新率采样,探讨了UWB信号处理中的信道估计、接收等技术。UWB系统中采样速率可以由接收的UWB信号的更新率决定,而不是奈奎斯特速率,减少了数据处理量,降低了系统功耗和复杂性。

Based on the analysis of sampling signals with finite rate of innovation, the approaches such as estimation of the general UWB channels, reception of UWB signal is discussed. Signals with finite rate of innovation,even though not limited,can be sampled uniformly at the rate of innovation using an appropriate kernel and then be perfectly reconstructed. The required sampling rate in UWB systems is determined by the innovation rate of the received UWB signal,rather than the Nyquist rate, which allows for lower sampling rates and reduced complexity and power consumption.