Title :
Optimal estimation of impulse response and adaptive equalization for mobile radio channel
Author :
Nakano, Takayuki ; Takebe, Tsuyoshi
Author_Institution :
Fac. of Technol., Kanazawa Univ., Japan
Abstract :
A method for equalization of a digital land mobile radio channel is presented. In wideband time division multiple access digital mobile radio transmission, the received signal is severely degraded by frequency-selective fading due to multipath propagation. Highly severe degradation occurs in the nonminimum phase state of the channel (where the level of the delayed wave is larger than that of the direct wave). A method for improving the equalizer performance in the nonminimum phase state with optimal estimation of channel impulse responses is proposed. Remarkable improvement in MSE of the equalizer output was achieved by the proposed method
Keywords :
adaptive systems; digital radio systems; equalisers; fading; mobile radio systems; time division multiple access; transient response; TDMA; adaptive equalization; digital land mobile radio channel; frequency-selective fading; impulse response estimation; multipath propagation; nonminimum phase state; optimal estimation; signal degradation; wideband time division multiple access transmission; Adaptive equalizers; Degradation; Fading; Frequency conversion; Land mobile radio; Phase estimation; Propagation delay; RF signals; Time division multiple access; Wideband;
Conference_Titel :
Systems Engineering, 1992., IEEE International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-7803-0734-8
DOI :
10.1109/ICSYSE.1992.236916
