Research on Spatial Diversity Blind Equalization Based on Constant Modulus Algorithm
Wang Le-pinga · Journal of Nanchang University · 2009
Unlike conventional adaptive equalization,Bussgang blind equalization operates without training sequence,which can save bandwidth and achieve higher date rate with strong robustness and be easily implemented,is widely used.The problems,however,such as slower convergence rate,larger residual error and phase-blind nature may not be sufficient for system to obtain adequate performance.Accordingly,we study the method of combining Bussgang blind equalization with different diversity combining technique.A spatial diversity method based on constant modulus algorithm is proposed.It can be suitable to long-range communication and is an effective way to improve SNR and suppress distortion.Compared with the decision feedback equalizer the proposed method can obtain faster convergence rate and lower steady state mean square error.