提出了智能天线多载波CDMA系统中一种空域和频域联合的盲多用户自适应检测算法，它是将空域波束形成和频域合并检测合二为一，使得检测器在空域和频域两维上同时优化，从而提高了系统的检测性能。对这种空频联合检测算法的误码性能进行了分析,并与先自适应波束形成然后再进行频域合并的分步算法进行了仿真比较，仿真结果表明，提出的空频联合盲多用户自适应检测算法的检测性能优于分步检测算法。

A space-frequency joint blind multi-user adaptive detection algorithm in smart antenna MC-CDMA system is proposed in this paper. It combines the receiving beam-forming in space-domain with combinational detection in frequency-domain and optimizes the detector simultaneously in two dimensions. It can enhance the performance of detection of the system. The bit error probability of the proposed algorithm is also analyzed in this paper. The proposed algorithm is simulated and compared with the two-step algorithm in which the adaptive beam-forming is used first and then the combination in frequency-domain is carried out. Simulation results show that the proposed algorithm is superior to the latter.