Title :
Pulse detection algorithm for line-of-sight (LOS) UWB ranging applications
Author :
Low, Z.N. ; Cheong, J.H. ; Law, C.L. ; Ng, W.T. ; Lee, Y.J.
Author_Institution :
Positioning & Wireless Technol. Center, Nanyang Technol. Univ., Singapore, Singapore
fDate :
6/27/1905 12:00:00 AM
Abstract :
This paper presents an algorithm for precise determination of the distance between a pair of transmitting and receiving antennas using FCC conforming ultra-wideband (UWB) pulses. Indoor line-of-sight (LOS) measurements up to 24 m were conducted at Research Technoplaza, Nanyang Technological University, Singapore. The proposed algorithm is developed using Matlab to post process the captured waveform. Significant improvement of accuracy is observed in determining the time of flight using a combination of match filtering and peak search technique, achieving centimeter level accuracy. Ranging results show a worst case standard deviation of 2 cm for distance up to 8 m and 10.6 cm for distance up to 24 m.
Keywords :
mathematics computing; receiving antennas; transmitting antennas; ultra wideband communication; FCC conforming ultra-wideband pulses; Matlab; UWB ranging; centimeter level accuracy; indoor LOS; line-of-sight; match filtering; peak search technique; pulse detection algorithm; transmitting-receiving antennas; Detection algorithms; FCC; Interference; Mathematical model; Receiving antennas; Sampling methods; Signal generators; Transmitting antennas; Ultra wideband antennas; Ultra wideband technology; Peak search algorithm; ranging; ultra-wideband (UWB);
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2005.844145
