Title :
Experimental analysis and modeling of CSS ranging in LOS and NLOS environments
Author :
Xingchuan Liu ; Zhengfeng Wu ; Wei Ben
Author_Institution :
28th Res. Inst., China Electron. Technol. Group Corp., Nanjing, China
Abstract :
Chirp Spread Spectrum (CSS) defined in IEEE 802.15.4a, known to be resistant to signal interference and multipath fading, can perform precise ranging and it is a promising technology for localization systems. This paper is designed to investigate the performance and characteristic of CSS ranging in LOS and NLOS surroundings. On the basis of the experimental analysis, we propose a voting-averaging filter to deal with the problem of unpredictable abnormal ranging points and measurement noise. Secondly, we further propose a uniform model of CSS ranging, which can apply to LOS and NLOS range measurement, to improve the performance of distance measurement.
Keywords :
Zigbee; distance measurement; filtering theory; mobile computing; multipath channels; radiofrequency interference; CSS ranging; IEEE 802.15.4a; LOS environments; LOS range measurement; NLOS environments; NLOS range measurement; chirp spread spectrum; distance measurement performance improvement; experimental analysis; experimental modeling; localization systems; measurement noise problem; multipath fading; none-line-of-sight; signal interference; unpredictable abnormal ranging point problem; voting-averaging filter; Chirp spread spectrum; Modeling; Percise Ranging; Voting-averaging filter;
Conference_Titel :
Wireless and Optical Communication Conference (WOCC), 2013 22nd
Conference_Location :
Chongqing
Print_ISBN :
978-1-4673-5697-8
DOI :
10.1109/WOCC.2013.6676384
