Analysis of PSK signal power spectrum spread with a Markov chain model
Abstract
A Markov chain model is used to calculate spectra of 2-phase PSK signals for linear channels and channels containing a memoryless traveling wave tube amplifier (TWTA) with AM/AM and AM/PM nonlinearities. The autocorrelation function is obtained from the Markov chain model, and a matrix representation which can be easily computerized is then obtained for the correlation function and the power spectrum. The model provides insight into the spectrum spreading action of the TWTA and particularly into the sensitivity of spectra to various system parameters such as AM/AM and AM/PM characteristics, data rate, and bandwidth. Extension of the model to cover M-phase PSK signals warrants further investigation.
- Publication:
-
COMSAT Technical Review
- Pub Date:
- November 1975
- Bibcode:
- 1975COMTR...5..225D
- Keywords:
-
- Markov Chains;
- Phase Shift Keying;
- Power Spectra;
- Signal Analysis;
- Amplitude Modulation;
- Autocorrelation;
- Bandwidth;
- Independent Variables;
- Phase Modulation;
- Quadratures;
- Telecommunication;
- Traveling Wave Amplifiers;
- Traveling Wave Tubes;
- Communications and Radar