Four frequency-shift keying (4-FSK) spread spectrum modulator and demodulator
Authors
Murray, Terrence J.
Advisors
Ha, Tri T.
Second Readers
Panholzer, Rudolf
Subjects
Date of Issue
1993-03
Date
March 1993
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
This thesis explores the potential use of a four frequency-shift keying (4-FSK), spread spectrum modulator and demodulator (MODEM) in a low orbit satellite. In this first approach a short maximal length sequence of 127 chips would be used to spread the four frequencies. After successful implementation, the design could be extended to longer codes which would provide for greater processing gain. This MODEM was not preselected for use in satellite communications based on the merits of 4-FSK, but was assigned as one of four possible digital communication designs. A MODEM would be selected for use in the Petite Amateur Navy Satellite after a thorough design review.
Type
Thesis
Description
Series/Report No
Department
Department of Electrical and Computer Engineering
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funding
Format
94 p.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.