Two-Sensor Synthetic Aperture Geolocation Techniques
Download
Author
Elam, Kyle A.
Date
2014-06Advisor
Su, Weilian
Second Reader
Ha, Tri
Metadata
Show full item recordAbstract
Geolocation technology with the ability to locate an unknown beacon signal in three-dimensional space has been
engrafted into numerous modern electronic systems. Indeed, the marketplace is anxious for more accurate and more
accessible geolocation data. A primary limiting factor of the growth of geolocation systems is the stringent physical
resource requirements needed for existing geolocation algorithms.
Popular geolocation algorithms measure the time-of-arrival, time-difference-of-arrival, and frequencydifference-of-arrival of an incoming beacon signal from an unknown emitter at a given time. For these techniques,
accurate solutions require a minimum of three airborne sensors; if available, a fourth sensor often significantly
improves the accuracy. This resource requirement is excessive; we aim to relax it to two airborne sensors by applying
a synthetic aperture technique. By fusing together data from multiple subsequent time samples, one can boost the
overall resolution of the geolocation estimate.
We propose using a series of geolocation measurements collected between two sensors according to a synthetic
aperture model. System performance dependence on sensor velocity and aperture size is assessed. Additionally, a
brief treatment of noise tolerance and estimation theory is given. Lastly, the overall feasibility of a synthetic-aperturebased geolocation algorithm is summarily addressed.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, it may not be copyrighted.Collections
Related items
Showing items related by title, author, creator and subject.
-
Two-sensor synthetic aperture geolocation techniques
Elam, Kyle A. (Monterey, California: Naval Postgraduate School, 2014-06);Geolocation technology with the ability to locate an unknown beacon signal in three-dimensional space has been engrafted into numerous modern electronic systems. Indeed, the marketplace is anxious for more accurate and ... -
COMPARISON BETWEEN TWO SENSORS AND MULTIPLE SENSORS WITH TOA AND TDOA/FDOA FUSIONS AND NON-FUSIONS UNDER NOISE JITTER MITIGATION
Dobias, Richard G. (2014-12);The prominence of geolocation technology and its demand has risen in recent years. Stringent and precise positioning is at the forefront of both civilian and military applications. The importance of precision leads to a ... -
Optimal Use of TDOA Geo-Location Techniques Within the Mountainous Terrain of Turkey
Tas, Volkan (Monterey, California. Naval Postgraduate School, 2012-09);Emitter location finding enables important functionality for both military and civilian applications. GPS is the most recognized and widely used positioning system, but it is a receiver location system that functions in a ...