Modulation techniques
Abstract
Bandwidth efficient digital modulation techniques, proposed for use on and/or applied to satellite channels, are reviewed. In a survey of recent works on digital modulation techniques, the performance of several schemes operating in various environments are compared. Topics covered include: (1) quadrature phase shift keying; (2) offset - QPSK and MSK; (3) combined modulation and coding; and (4) spectrally efficient modulation techniques.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- 1982
- Bibcode:
- 1982STIN...8310329S
- Keywords:
-
- Demodulation;
- Digital Techniques;
- Modulators;
- Phase Shift Keying;
- Pulse Communication;
- Spacecraft Communication;
- Bandwidth;
- Carrier Frequencies;
- Fourier Transformation;
- Orthogonality;
- Power Spectra;
- Quadratures;
- Communications and Radar