Equalization of QPSK Data Transmission in Specular Multipath
- 1 September 1974
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Aerospace and Electronic Systems
- Vol. AES-10 (5) , 588-594
- https://doi.org/10.1109/taes.1974.307850
Abstract
This paper gives performance results for transversal-filter equalization of quadriphase phase-shift-keyed (QPSK) signals with two-component multipath and demodulator phase error. An analytical expression for optimum, minimum mean-square-error tap weights in terms of the multipath and signal parameters is given. Probability of error results for no equalization and equalization with adaptive decision-feedback tap-weight adjustment are compared. The results show that significant improvement can be obtained with relatively simple equalizer structures.Keywords
This publication has 5 references indexed in Scilit:
- Maximum-likelihood sequence estimation of digital sequences in the presence of intersymbol interferenceIEEE Transactions on Information Theory, 1972
- An Adaptive Decision Feedback EqualizerIEEE Transactions on Communications, 1971
- Feedback equalization for fading dispersive channelsIEEE Transactions on Information Theory, 1971
- Statistical detection for communication channels with intersymbol interferenceProceedings of the IEEE, 1970
- An adaptive receiver for digital signaling through channels with intersymbol interferenceIEEE Transactions on Information Theory, 1969