基于SMI和MBM的干扰对消法的实现

The Implement of Interference Cancellation Based on SMI and MBM

波束形成技术是自适应天线所研究的主要问题之一,在雷达、声纳和通信等系统中,作为抑制干扰和降低噪声损害的一种有效手段,被广泛采用。在实际环境中,往往存在有信号经过多径反射、散射等产生干扰信号。干扰的存在会导致信号相消现象,使很多已有的波束形成算法失去作用。该文对相干干扰存在时的信号相消现象进行了探讨,并对SMI和MBM两种干扰消除方法进行了研究和性能比较。

When we use radar, sonar and other equipment to detect signals, interference signal is usually found. Having a good performance, bearnforming technology can usually be used to suppress the interference signal. But in fact, because of multipath fading and scatter propagation, the signal cancellation exists and the traditional beamforlng algorithm can not work effectively. In this paper, we discuss the phenomenon of signal cancellation; research two interference cancellation methods, SMI and MBM, and their performances are compared.