International Telemetering Conference Proceedings / October 21, 2002 / Town & Country Hotel and Conference Center, San Diego, California / Feher Keying (FK) signals are clock shaped baseband waveforms with the
potential to attain very high spectral efficiencies. Two FK signals which have different
level rectangular waveforms (named as FK-1) or sinusoidal waveforms (named as FK-2)
for two binary symbols are considered in this paper. These signals have periodic
components in the time domain. Therefore they have cyclostationary properties. This
means that spectral correlation exists in the frequency domain. For each type of
waveforms, spectral correlation has been investigated. FK signals can be expressed
mathematically into two parts in the frequency domain – discrete part and continuous part.
The discrete part has one or more discrete impulse(s) in their spectra and the continuous
part has periodically the same shape of harmonics in their spectra. The correlations of
their spectra have been obtained mathematically and by simulation. It is shown that FK
signals have high correlation related to the symbol rate.
Finally, some suggestions how these properties can be used to improve their
performance by devising better demodulators are discussed. These properties can be used
for interference rejection at the receiver, which results in low bit error rate performance.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/605601 |
| Date | 10 1900 |
| Creators | Chang, Soo-Young, Gonzalez, Maria C., McCorduck, James A., Feher, Kamilo |
| Contributors | University of Suwon, University of California, Digcom, Inc. |
| Publisher | International Foundation for Telemetering |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | English |
| Type | text, Proceedings |
| Rights | Copyright © International Foundation for Telemetering |
| Relation | http://www.telemetry.org/ |
Page generated in 0.0017 seconds