Date of Award
Spring 1987
Document Type
Thesis - Restricted
Degree Name
Master of Science (MS)
Department
Electrical Engineering
First Advisor
Ishii, T. K.
Second Advisor
Jeutter, Dean C.
Third Advisor
Jodat, Ronald W.
Abstract
The realization of a direct-sequence spread-spectrum transmitter at 915 MHz for use in an indoor communication system for building automation control is presented. The transmitter utilizes a phase-reversal keying to modulate the carrier at a chipping rate of 5 MHz. The theory presented develops a description of all the signals present in the transmitter circuitry. Design details and measurements associated with the construction of a laboratory prototype and a compact microstrip prototype are presented and documented. Propagation profiles associated with indoor propagation sites show that average attenuation is typically 2 dB per meter. A discussion of direct-sequence spread-spectrum interference avoidance capabilities shows that this technique improves the reliability of indoor communications.
Recommended Citation
Petted, Brian E., "Microwave Intra-Building Transmission Using Spread Spectrum" (1987). Master's Theses (1922-2009) Access restricted to Marquette Campus. 3857.
https://epublications.marquette.edu/theses/3857