Title
A Comparison of Angle-of-Arrival algorithms for space based geolocation
Author
Broekhuizen, Casper (TU Delft Aerospace Engineering; TU Delft Space Systems Egineering)
Contributor
Menicucci, Alessandra (mentor)
Gill, Eberhard (graduation committee)
Cowan, Kevin (graduation committee)
Oving, Bertil (graduation committee)
Degree granting institution
Delft University of Technology
Programme
Aerospace Engineering
Date
2019-11-08
Abstract
Geolocation of Radio Frequency (RF) emitters, is finding the geographical location of said emitter. This thesis explores the concepts of geolocation, specifically, Space-Based geolocation of earth-surface emitters by means of measuring the Angle-of-Arrival using a Uniform-Rectangular Antenna Array. Initially the literature is explored, the significance of Geolocation is made clear and the research outline and scope is defined. Afterwards, Angles-of-Arrival finding algorithms are investigated and implemented, specifically the subspace algorithms: "MUltiple SIgnal Classification" (MUSIC) and "Estimation of Signal Parameters via Rotational Invariance"(ESPRIT). These algorithms are thoroughly explained, a model is obtained and implemented into a Simulation framework. The Simulation Framework is used to create a Graphical Tool used to calculate performance figures of Space-Based Geolocation. By using the obtained Simulation, a sensitivity analysis is produced. This sensitivity analysis observes the effect of design parameters of a satellite platform and geolocation payload on the geolocation performance. This sensitivity analysis is used to find the optimal approach when designing a geolocation payload. This approach can be used to synthesize a geolocation payload design that maximizes performance.
Subject
Geolocation
Angle of arrival
Direction of Arrival
MUSIC
ESPRIT
Subspace algorithms
To reference this document use:
http://resolver.tudelft.nl/uuid:5adcc2b2-2c1e-43f7-8572-a0204ce5bf96
Embargo date
2024-11-08
Part of collection
Student theses
Document type
master thesis
Rights
© 2019 Casper Broekhuizen