Fast localization of radio frequency emitters using wireless sensor networks

We investigate the use of a wireless sensor network for identifying the direction of a radio frequency (RF) transmission. Specifically, we consider the combined use of time difference of arrival (TDOA) and beamforming techniques to steer a beam in the desired direction and enhance radio frequency (R...

Full description

Saved in:
Bibliographic Details
Main Authors: Batson, M.S., McEachen, J.C., Tummala, M.
Format: Conference Proceeding
Language:English
Subjects:
Array signal processing
Centralized control
Communication system control
Radio frequency
Radiofrequency identification
Sensor arrays
Signal processing
Time difference of arrival
Unmanned aerial vehicles
Wireless sensor networks
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We investigate the use of a wireless sensor network for identifying the direction of a radio frequency (RF) transmission. Specifically, we consider the combined use of time difference of arrival (TDOA) and beamforming techniques to steer a beam in the desired direction and enhance radio frequency (RF) direction finding and follow-on signal reception. The TDOA lines-of bearing are calculated using a combination of the Cross-Ambiguity Function to calculate the actual time difference and the Newton-Raphson technique to focus the beamforming efforts. A Least Mean Squares (LMS) adaptive beamforming algorithm is then used to localize the target for further prosecution. Simulations indicate considerable improvement can be achieved using this combined method.
DOI:10.1109/ISCIT.2007.4392142