Title :
Measurement of TOA using frequency domain characteristics for indoor geolocation
Author :
Zand, Emad D. ; Pahlavan, Kaveh ; Beneat, Jacques
Author_Institution :
Dept. of ECE, Worcester Polytech. Inst., MA, USA
Abstract :
Frequency domain techniques have been widely used for indoor radio propagation measurements and modeling for telecommunication applications. This paper addresses measurement of the time of arrival (TOA) of the first path for geolocation application using results of frequency domain channel measurements. First, we analyze the effect upon TOA measurement accuracy due to: sampling period of the radio channel in the frequency domain, sampling period in the time domain used for detection of the TOA and the windowing filter used before transformation to time domain. Then we provide some results of measurement in line of sight (LOS) and obstructed LOS (OLOS) indoor environments to compare the characteristics of the measured TOA in these two important scenarios for indoor geolocation applications.
Keywords :
filters; frequency-domain analysis; indoor radio; radiowave propagation; time-domain analysis; frequency domain characteristics; indoor geolocation application; indoor radio propagation measurement; obstructed line of sight measurement; radio channel; sampling period; telecommunication application; time domain transformation; time of arrival measurement; windowing filter; Antenna measurements; Filters; Frequency domain analysis; Frequency measurement; Indoor radio communication; Phase measurement; Safety; Sampling methods; Time domain analysis; Time measurement;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on
Print_ISBN :
0-7803-7822-9
DOI :
10.1109/PIMRC.2003.1259109
