Comparison of two sub-optimum MLSE receivers for band-limited nonlinear channel

• Main Author: Khoo, Sunny Cheng Kong.
• Other Authors: Dubey, Vimal Kishore
• Format: Theses and Dissertations
• Language: English
• Published: 2008
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Satellite telecommunication; DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing
• Online Access: http://hdl.handle.net/10356/13262
• Institution: Nanyang Technological University

In this dissertation, we compared the performance of two sub-optimum receiver structure [1,2] for QPSK signals over a digital satellite communications channel, with downlink filtering following a nonlinear satellite transponder. The first receiver, Adaptive Threshold Detection with Estimated Sequence (ATDES) receiver [2] is capable of correcting channel degradation resulting from InterSymbol Interference and variations in transponder operating point encountered in a satellite communication system. The second receiver structure developed in [1], based on Average Matched Filter receiver, has also shown to perform well over various transponder back-off points.