Geolocation of source interference from a single satellite with multiple antennas

Download
Author
Fredrick, Brian C.
Date
2014-03Advisor
Racoosin, Charles M.
Second Reader
Bursch, Daniel W.
Metadata
Show full item recordAbstract
Interference of satellite communications is a frequent and ongoing concern for both DoD and civilian enterprises. Geolocation of the interfering source is an essential step in mitigating or eliminating the interference and restoring operation of the communications service. Existing techniques to locate sources of such interference are not applicable to newer satellite communications systems. This thesis offers an innovative method for locating interference that takes advantage of modern multi-antenna satellites. The location of a source of radio frequency interference can be determined by comparing the received signal strength across multiple antennas on the same satellite. The difference between signal strength'as received by the satellite antennas'can be computed and plotted as lines of position on the surface of the Earth. The intersection of two or more lines of position represents the location of the interfering transmitter. An advantage of this method is that it is completely passive and can be done in real time. The size and accuracy of the resultant geolocation area are a function of a number of different factors, including terrestrial latitude of the interfering transmitter, the accuracy of the signal strength measurement, and the geometry of the intersecting lines of position.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
Related items
Showing items related by title, author, creator and subject.
-
Launch detection satellite system engineering error analysis
Beaulieu, Martin Ronald (Monterey, California. Naval Postgraduate School, 1996-03);An orbiting detector of infrared (IR) energy may be used to detect the rocket plumes generated by ballistic missiles during the powered segment of their trajectory. By measuring angular directions of the detections over ... -
Simulation of Adjacent Channel Interference in a UHF Satellite System
Minuto, Juan Carlos. (Monterey, California. Naval Postgraduate School, 1993-09);In this thesis, the adjacent channel interference in a ultra high frequency (UHF) satellite channel is evaluated by simulation differential binary phase-shift keying (DBPSK) is compared with continuous phase frequency-shift ... -
Design, build, and test a hand-held GPS Interference Detector
Carson, James E. (Monterey California. Naval Postgraduate School, 2008-09);The Global Positioning System (GPS) navigation signal is extremely vulnerable to intentional and unintentional interference. Increased dependence on GPS by military users has created a need to quickly detect and locate ...