In this paper we present fractionally spaced adaptive equalization techniques and space diversity combined receiver and evaluate their performance for the downlink of S-UMTS system. The conventional "training" (or non-blind) and the "unsupervised" (or blind)adaptive equalization algorithms are both investigated. Simulation results show that the equalizers are robust to Doppler shift and nonlinearity effects due to TWT amplifiers aboard the satellite. It is also shown that even with a moderate array size of two antenna elements, a significant improvement in terminal performance is achieved.

I denna artikel presenteras en enkel men effektiv blind spatial kanalutjämnare, som är avsedd för satellit-mobiltelfoni. Ujämnaren använder två antenner till att ta imot signalen och därför kommer den att vara robust mot flervägsutbredning (mulit-path).