提出了一种基于预解扩的判决反馈最小二乘恒模波束形成算法.它是对DS-CDMA接收信号先进行预解扩,然后将判决反馈用于最小二乘恒模算法进行波束形成,并在加性白高斯和多径衰落信道的环境中进行了仿真.仿真结果表明,该算法的信干比性能和误码率性能比传统的SDCMA算法和DRLSCMA算法要好。
A new least squares constant modulus beam-forming algorithm based on decision-feedback using pre-despreading signals (D-LSCMAFB) in DS-CDMA system is proposed in this paper. This algorithm is simulated and compared with SDCMA and DRLSCMA in additive white Gaussian channel and multipath fading channel environments. Simulation results show that the proposed D-LSCMAFB algorithm is superior to SDCMA and DRLSCMA.