盲信号分离算法研究

The Algorithm Study of Blind Signals Separated

介绍了一种基于快速定点的盲分离算法，该算法可以对来自不同方向上的统计独立信号进行有效的分离，并且不需要预先知道信号的测向和阵列的结构流形，因此该算法称为盲分离算法。另外该算法不仅有传统的波束形成的优点，即在有用信号方向形成主波束，并且还能够在干扰方向形成很好的零点，所以该算法是波束形成技术和零点形成技术的结合，可大大提高信干比，另外该算法还有收敛快的特点，对于每一个信号大约迭代10次后就可以收敛。

A Fast Fixed-point algorithm-blind signals separated （BSS） algorithm is discussed in the thesis. It can separate several statistical independent signals from different direction, and it is not necessary of knowing the direction of every signal and the structure of the antenna array, so it can be named BSS. It not only have the excellence of traditional beamforming algorithm-forming main beamform on anticipant direction, but can create zero-point on interferential direction. So it is the combination of beamforming and zero-point forming technology, and can improve the Signal-to-Interference Ratio greatly. In addition it has the characteristic of separating one signal only needing about ten inerativenesses.