Radio Frequency Localization of a Transmitter using Multiple Space-Based Receivers
Abstract
Abstract and Public Purpose Radio frequency (RF) localization is the use of radio frequencies to determine the location of an object on the earth, in the air, or in orbit. Cooperative geolocation, which utilizes coordination between the transmitter and the receiver, is widely used. Some notable space-based examples include GPS and SARSAT. Uncooperative geolocation, where there is no coordination between the transmitter and the receiver, has been used by the FCC and others on the ground for various applications. However, there has been very little research done on using uncooperative geolocation techniques from a space-based platform. The work proposed here will look at the feasibility of using the uncooperative geolocation techniques of Time Difference Of Arrival (TDOA), Frequency Ratio Of Arrival (FROA), and Direction Of Arrival (DOA) from a space-based platform using existing technology. The technical approach will consist primarily of theoretical work and simulation, with a possibility of some minimal laboratory work later on. The research will involve work in signal processing, applied electromagnetics, orbital mechanics, and statistical estimation. The end result of this research is expected to show which applications space-based geolocation is suitable for, as well as overall feasibility. This will be a novelty, as there has been relatively little research made in this area by the scientific community overall. The public purpose of this fundamental research is exemplified in many applications including: search and rescue of crashed planes, lost or stranded individuals, etc; locating transmitters that are interfering with TV, radio, and other public communication systems; and the potential for the enhancement of education at the university level and below.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 18, 2016
- Source ID
- FA94531510311
Entities
People
- Gregory Durgin
Organizations
- Air Force Research Laboratory
- Georgia Tech Research Corporation
- United States Air Force