RAO Wei, GUO Ye-cai, WANG Sheng-qian, et al. New Constant Modulus Algorithm for Blind Equalization Based on Coordinate Transformation[J]. Acta Electronica Sinica, 2011, 39(1): 7-12.
RAO Wei, GUO Ye-cai, WANG Sheng-qian, et al. New Constant Modulus Algorithm for Blind Equalization Based on Coordinate Transformation[J]. Acta Electronica Sinica, 2011, 39(1): 7-12.DOI:
by studying the characteristics of the constellations for different transmitted signals
we modify the cost function of Constant Modulus Algorithm (CMA) and propose a new CMA based on coordinate transformation.The proposed algorithm changes the modulus of transmitted signals to zero
which can lead the output error to converge to zero even for nonconstant modulus signals.Furthermore it can achieve blind equalization without any priori statistical information of transmitted signals.Theoretic analysis and computer simulation results demonstrate that the proposed algorithm offers high performance.