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Proceedings Paper

A novel density-based geolocation algorithm for a noncooperative radio emitter using power difference of arrival
Author(s): Shanzeng Guo; Brad Jackson; Sichun Wang; Robert Inkol; William Arnold
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Paper Abstract

This paper presents a novel density-based geolocation algorithm for locating a non-cooperative radio emitter using measurements of the power difference of arrival (PDOA), also known as received signal strength difference (RSSD). Consider a 2D space in a Cartesian coordinate system with N sensors and one stationary radio emitter and assume that the distance from a sensor to the radio emitter is the hypotenuse of a right triangle. For any combination of three sensors, there exists a system of three Pythagorean equations that can be transformed into a system of three circle equations whose centers and radii are related to the corresponding PDOA measurements. The intersections of the circles represent possible locations for the radio emitter. For N sensors, we can have a maximum of N(N-1) intersections of the circles. Dividing the 2D space into a grid, each grid cell contains a certain number of intersections. This method finds the grid cell with the highest intersection density and uses the center of this cell as the position fix estimate. MATLAB-based numerical simulations were used to evaluate the performance of this algorithm for various scenarios and parameters.

Paper Details

Date Published: 24 May 2011
PDF: 11 pages
Proc. SPIE 8061, Wireless Sensing, Localization, and Processing VI, 80610E (24 May 2011); doi: 10.1117/12.883306
Show Author Affiliations
Shanzeng Guo, Defence Research and Development Canada (Canada)
Brad Jackson, Defence Research and Development Canada (Canada)
Sichun Wang, Defence Research and Development Canada (Canada)
Robert Inkol, Defence Research and Development Canada (Canada)
William Arnold, Univ. of Waterloo (Canada)


Published in SPIE Proceedings Vol. 8061:
Wireless Sensing, Localization, and Processing VI
Sohail A. Dianat; Michael David Zoltowski, Editor(s)

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