Title :
TOA estimation with different IR-UWB transceiver types
Author :
Guvenc, Ismail ; Sahinoglu, Zafer
Author_Institution :
Mitsubishi Electr. Res. Labs, Cambridge, MA, USA
Abstract :
In this paper, performances of stored-reference (SR), transmitted-reference (TR), and energy detection (ED) based time of arrival (TOA) estimation techniques are analyzed for impulse-radio ultra-wideband (IR-UWB) systems. Various maximum likelihood estimation approaches are investigated under different observation models, and a new estimator that exploits the noise statistics and power delay profile of the channel is proposed. Simulation results show that ED and TR perform well if the sampling rate is much smaller than the Nyquist rate. Also, exploiting the channel and noise statistics considerably improves the accuracy of peak selection.
Keywords :
maximum likelihood estimation; telecommunication channels; time-of-arrival estimation; transceivers; ultra wideband communication; IR-UWB transceiver; TOA estimation; energy detection; maximum likelihood estimation approaches; power delay profile; stored-reference; time of arrival estimation techniques; transmitted-reference; Delay estimation; Maximum likelihood estimation; Performance analysis; Power system modeling; Sampling methods; Statistics; Strontium; Time of arrival estimation; Transceivers; Ultra wideband technology;
Conference_Titel :
Ultra-Wideband, 2005. ICU 2005. 2005 IEEE International Conference on
Print_ISBN :
0-7803-9397-X
DOI :
10.1109/ICU.2005.1570025
