Date of Award
3-2021
Document Type
Thesis
Degree Name
Master of Science
Department
Department of Electrical and Computer Engineering
First Advisor
Sanjeev Gunawardena, PhD
Abstract
This thesis presents the feasibility of a Delayed Authentication System (DAS) for civilian satellite navigation (satnav) receivers. In satnav systems, encrypted signal components are transmitted synchronously with civilian components. Hence, the civilian signals can be authenticated by detecting the presence of encrypted signal components within the received signal. To authenticate, a reference station transmits estimated encrypted signal spreading code symbols processed using a high gain antenna. In this thesis, it is shown that a 1-meter diameter dish antenna is adequate to provide a high probability of successful authentication, thereby reducing overall system complexity and cost.
AFIT Designator
AFIT-ENG-MS-21-M-035
DTIC Accession Number
AD1132780
Recommended Citation
Feschak, Sean M., "Delayed Authentication System for Civilian Satellite" (2021). Theses and Dissertations. 4895.
https://scholar.afit.edu/etd/4895