Abstract
This thesis describes the application of adaptive equalization based on the constant modulus algorithm (CMA) and the decision-feedback minimum mean squared error (DF-MMSE) concept to the two compatible offset QPSK waveforms (FQPSK and SOQPSK-TG) that constitute the ARTM Tier-1 waveforms. An adaptive version of the DF-MMSE equalizer is developed and applied to this application. In the presence of frequency selective multipath interference typically encountered in aeronautical telemetry, both equalization techniques are shown to provide reliable performance for FQPSK and SOQPSK-TG. The performance of both waveforms with the DF-MMSE equalizer is slightly better than that using the CMA equalizer. Implementation trade-offs between the two types of equalizers are discussed.
Degree
MS
College and Department
Ira A. Fulton College of Engineering and Technology; Electrical and Computer Engineering
Rights
http://lib.byu.edu/about/copyright/
BYU ScholarsArchive Citation
Paje, Vladimir Ignacio, "Equalization Techniques For Multipath Mitigation in Aeronautical Telemetry" (2005). Theses and Dissertations. 279.
https://scholarsarchive.byu.edu/etd/279
Date Submitted
2005-03-21
Document Type
Thesis
Handle
http://hdl.lib.byu.edu/1877/etd774
Keywords
equalization, equalizer, constant modulus, CMA, minimum mean squared, MMSE, telemetry, multipath, fading channel, QPSK, FQPSK, SOQPSK
Language
English