Delay-Dependent Threshold Selection for UWB TOA Estimation

Precision ultra-wideband ranging requires accurate estimation of time of arrival (TOA). The threshold-based TOA estimation has attracted considerable interest due to its simplicity. In this paper, we propose a technique to set the threshold as a function of delay instead of a single value as in conventional methods. Simulation results show that the proposed method is superior to conventional methods.

[1]  A. Molisch,et al.  IEEE 802.15.4a channel model-final report , 2004 .

[2]  H. Urkowitz Energy detection of unknown deterministic signals , 1967 .

[3]  Ian Oppermann,et al.  GML ToA Estimation Based on Low Complexity UWB Energy Detection , 2006, 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications.

[4]  V. Prithiviraj,et al.  UWB localization techniques for precision automobile parking system , 2008, 2008 10th International Conference on Electromagnetic Interference & Compatibility.

[5]  Ismail Güvenç,et al.  Threshold selection for UWB TOA estimation based on kurtosis analysis , 2005, IEEE Communications Letters.

[6]  I. Guvenc,et al.  Threshold-based TOA estimation for impulse radio UWB systems , 2005, 2005 IEEE International Conference on Ultra-Wideband.