| 摘要: |
| 提出了利用新限速抽样率理论解决信道估计问题,建立了既可用于宽带也可用于窄带信道估计的框架,此框架的抽样率低于奈奎斯特速率。通过实例展示了利用奈奎斯特速率抽样而工作在低于奈奎斯特抽样率的算法性能,减少了功耗,也降低了算法的复杂性。 |
| 关键词: 超宽带通信系统 新限速抽样率 信道估计 |
| DOI：10.3969/j.issn.1001-893X. |
| Received:September 05, 2005 |
| 基金项目: |
|
| Channel and Timing Estimation for UWB Systems Based on Sampling with Finite Rate of Innovation |
|
| () |
| Abstract: |
| We consider the problem of channel estimation by using the recently developed theory for sampling of signals with a finite rate of innovation.We show a framework which allows for lower than Nyquist rate sampling applicable for timing and channel estimation of both narrowband and wideband channels.In certain cases we demonstrate the performance exceeding that of algorithms using Nyquist rate sampling while working at lower sampling rates,thus saving power and computational complexity. |
| Key words: Ultra-wide-band(UWB) communication system,Sampling with finite rate of innovation,Channel estimation |
