Equalization Techniques For Multipath Mitigation in Aeronautical Telemetry

<p>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.</p>

Name thesis:degree_name

MS

Grantor dc:publisher

Brigham Young University - Provo

Author dc:creator

• Paje, Vladimir Ignacio

• equalization
• equalizer
• constant modulus
• CMA
• minimum mean squared
• MMSE
• telemetry
• multipath
• fading channel
• QPSK
• FQPSK
• SOQPSK
• Electrical and Computer Engineering

Language dc:language

English

Repository record dc:identifier

https://scholarsarchive.byu.edu/etd/279

OAI identifier oai:identifier

oai:scholarsarchive.byu.edu:etd-1278