TOA Estimation using Phase-Locked Loop in Non-coherent IR-UWB Systems

摘要：

Non-coherent energy detectors are motivated for impulse radios with simple circuitry. A performance degradation arises from the threshold effect at low SNR. Here, the phaselocked loop (PLL) is applied to estimate the time-of-arrival (TOA) of received impulses. In the schemes, the impulses received are processed as the excitation signals in the sampled phased-locked loop. Furthermore, the principle of phase-locked frequency multiplier is introduced to improve the precision of TOA estimation, and an iterative algorithm is proposed to acquire the first arrival in multipath environment. The mean-squareerror of the proposed TOA estimation is analyzed and verified by the simulations.

作者: Lin Zheng Mei Wang Jiming Lin

作者单位: Guilin University of Electronic Technology, Guilin, China, P.C.541004

会议类型: 国际会议

会议名称: 2010年无线通信与信号处理国际会议

会议地点: 上海

会议语种:英文

页码: 1-5

在线出版日期: 2010-10-20（万方平台首次上网日期，不代表论文的发表时间）