ANC-Based TOA Estimation with L ower Sampling Rates for UWB Systems

摘要：

High time resolution makes the UWB signal as a favor of the high accurate ranging technology. Since the bandwidth of a received UWB signal is very large, the Nyquist rate sampling becomes impractical. So energy detection (ED)algorithm with sub-Nyquist rate sampling becomes a feasible alternative. Though energy detection does not require accurate timing or pulse shapes, it suffers more from noise due to a square-law device, especially at lower SNR. This paper proposes an adaptive noise cancellation (ANC) based energy detection algorithm. By use of the ANC system, the effect of the noise is decreased obviously. Simulation results demonstrate the improvement in the mean absolute error (MAE) of TOA estimation when the proposed algorithm is used.

作者: Fan Li Shouyin Liu Yeong-Sam Kim Jong-Wha Chong

作者单位: Department of Electronic and Information Engineering Huazhong Normal University Wuhan, 430079, China The College of Information & Communications Hanyang University Seoul 133-791, Korea

会议类型: 国际会议

会议名称: 2007年通信、电路与系统国际会议(2007 International Conference on Communications,Circuits and Systems Proceedings)

会议地点: 日本福冈

会议语种:英文

在线出版日期: 2007-07-11（万方平台首次上网日期，不代表论文的发表时间）