Petite Amateur Naval Satellite Spacecraft Digital Control System: a hardware design.
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Authors
Ashe, John Douglas
Subjects
Advisors
Wight, R.L.
Date of Issue
1993-03
Date
Publisher
Monterey, California: Naval Postgraduate School
Language
en_US
Abstract
This thesis provides the foundational hardware design for the Digital Control System of
the Petite Amateur Navy Satellite (PANSAT). The design implements a multitasking operating
system to provide store and forward communications. This design contains "pair and a spare"
technology to provide redundancy for space operations. Addresses necessary for software design
are discussed and examples of initializing commands for the more complex sections are given.
CMOS technology was used throughout the design to minimize the power requirements. RS422
protocol was used on all communications lines to lessen the impact of noise. The M80C186
microprocessor coupled with an 82C55 Programmable Peripheral Interface are the cornerstone
of the design. All peripheral sections, Telemetry, Memory, and Communications are designed
to be controlled by the M80C186 via the 82C55. Since the mission of PANSAT may be
changed slightly before the launch of the vehicle, the hardware design contained in this
document is engineered to be upwardly compatible where possible.
Type
Thesis
Description
Series/Report No
Department
Electrical Engineering
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
Funder
Format
108 p.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.