Three beamforming methods using estimated steering vectors of coming signals in smart antenna are proposed.Based upon the signal model and the multipath channel model of CDMA

the steering vectors of mainpaths of users are estimated by using code filtering method.Then restrictive conditions of recovering desired signal and constraining interferences are formed by using these estimated steering vectors.Least square(LS) beamforming method is proposed directly from these restrictive conditions.Generalized minimum variance distortionless response(GMVDR) method is proposed by minimizing the output power based upon the restrictive conditions.Extended minimum variance distortionless response(EMVDR) method is also proposed by introducing dummy signals for constraining side lobes based upon GMVDR method.Simulation results show desired signal is recovered and interferences and noise are constrained perfectly in these methods.By comparison

it is proved that the beamform in EMVDR method is the best.