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Accession Number:
AD1132780
Title:
Delayed Authentication System for Civilian Satellite Navigation Receivers with Currently Existing Signals
Report Date:
2021-03-26
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.
Document Type:
Conference:
Journal:
Pages:
173
File Size:
16.04MB
Contracts:
Grants:
Distribution Statement:
Approved For Public Release
