Publication:
Performance of fast frequency-hopped self-normalized BFSK receivers over Ricean fading channels with multitone interference

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Authors
Green, Mary Ellen
Subjects
Advisors
Robertson, R. Clark
Hippenstiel, Ralph
Date of Issue
1995-06
Date
June 1995
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
This thesis is an investigation of the performance of noncoherent self-normalized fast frequency-hopped binary frequency shift keying (FFH/BFSK) receivers under conditions of non-negligible thermal noise, band multitone interference and Ricean fading where both the information signal and interference tones are affected by channel fading. Since finding closed form expressions for the most general case of Ricean fading proved difficult, performance was evaluated for special cases of fading. The analysis assumed fixed jamming power and considered two general jamming strategies: jamming a fixed number of frequency-hop slots, and jamming a variable number depending on signal energy per hop. It was found that the degree of fading of the jamming tones had little effect on system performance. It was also found that the most effective jamming strategy depended on the degree of fading of the information signal and on the signal-to-thermal noise power ratio per hop. In general, two- fold diversity yields improved performance with respect to no diversity. When the information signal is Rayleigh faded and the signal power is greater than about 1% of total jamming power, higher diversities perform better than lower diversities. When the signal is Ricean faded, the effect of higher diversities depends on the signal power per hop-to-thermal noise power ratio, the degree of signal fading and on the ratio of signal power-to-total jamming power.
Type
Thesis
Description
Series/Report No
Department
Electrical Engineering
Other Units
Identifiers
NPS Report Number
Sponsors
Funder
NA
Format
91 p.
Citation
Distribution Statement
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.
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