Title :
A cost function for simultaneous blind equalization and phase recovery of QAM signals
Author :
Zhang, Zhijun ; Takaya, Kunio ; Dodds, David E.
Author_Institution :
Dept. of Electr. Eng., Saskatchewan Univ., Saskatoon, Sask.
Abstract :
A new cost function of blind equalization for QAM signals is proposed. Under the condition that the in-phase source signal and the quadrature source signal are statistically independent to each other, a simple equalization algorithm using this cost function can simultaneously complete the channel equalization and phase recovery for QAM signals. The simulation results show the algorithm has the similar channel equalization effect as a CMA algorithm and at the same time recovers the phase error that CMA is unable to recover
Keywords :
blind equalisers; quadrature amplitude modulation; signal processing; telecommunication channels; QAM signals; blind equalization; channel equalization; in-phase source signal; phase recovery; quadrature source signal; Blind equalizers; Cost function; Digital communication; Electrical capacitance tomography; Fading; Intersymbol interference; Phase distortion; Quadrature amplitude modulation; Random sequences; Stochastic processes;
Conference_Titel :
Electrical and Computer Engineering, 2005. Canadian Conference on
Conference_Location :
Saskatoon, Sask.
Print_ISBN :
0-7803-8885-2
DOI :
10.1109/CCECE.2005.1557400
