AN EXTENSION OF SOQPSK TO M-ARY SIGNALLING
Affiliation
Phase IV Systems, Inc.Issue Date
2003-10Keywords
Power Spectral DensityShaped Offset Quadrature Phase Shift Keying
Shaped Offset M-ary Phase Shift Keying
Markov Chain
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Copyright © International Foundation for TelemeteringCollection Information
Proceedings from the International Telemetering Conference are made available by the International Foundation for Telemetering and the University of Arizona Libraries. Visit http://www.telemetry.org/index.php/contact-us if you have questions about items in this collection.Abstract
Shaped Offset Quadrature Phase Shift Keying (SOQPSK) has the advantages of low sidelobes and high detection probability; however, its main lobe has a fixed width set by the number of constellation points. By slightly modifying the modulation scheme, the four constellation points of quadrature shift keying can be changed to M constellation points where M is a power of 2. After this change, the power spectral density (PSD) retains low sidelobes, and the desirable property of being able to detect the signal by integrating over two symbol periods is retained.Sponsors
International Foundation for TelemeteringISSN
0884-51230074-9079