Cart (Loading....) | Create Account
Close category search window
 

Angle-of-arrival estimation with array in a Line-of-Sight indoor UWB-IR

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Yanjia Luo ; Dept. of EEE, Nanyang Technol. Univ., Singapore, Singapore ; Law, C.L.

Antenna array is useful in direction-finding because of its spatial-spread signal profile. Conventional array processing for narrowband is not suitable for ultra-wideband impulse radio (UWB-IR) because of the wideband spectrum and large off signal period. This paper addresses the utility of uniform circular array for AOA estimation in a line-of-sight (LOS) UWB-IR channel. Maximum likelihood (ML) estimation of AOA is obtained through minimizing the error function. Energy-capture capability (EC) is proposed as the weighted factor in the error function. It can indicate peak signal-to-noise ratio (SNR) and phase noise level, which is thought to be the reason for accuracy improvement. When all sensors lie in almost equal SNR environment, the key factor to degrade EC is the different RF impairments level, and phase noise caused by jitter and spike noise belong to this. Measurements are conducted to verify the weighted least square error (LSE) estimator's improvement in performance. Its accuracy is compared to the performance using uniform weighted estimator.

Published in:

Information, Communications and Signal Processing, 2009. ICICS 2009. 7th International Conference on

Date of Conference:

8-10 Dec. 2009

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.