数字波束形成算法中,CCAB算法在较高信干噪比条件下具有一定优势。但是计算时需要求逆矩阵,在阵元数较多的情形下运算量极大,很难实时实现,严重制约了其进一步的应用。提出了一种基于原有CCAB算法的多级计算方法,可以有效地减少运算量。实验表明,该方法虽然其信噪比性能比普通CCAB算法有所下降,但是仍能在干扰方向上形成较深的零陷并有效地抑制干扰,能够进一步应用于实际工程中。

The CCAB algorithm of DBF has high convergence rate in the case of relatively high SINR. Because the converse matrix is needed, the calculation load is large. Thus the algorithm is difficult to be realized in real time. In this paper, we apply the multi stage technology to CCAB. According to the simulation results, we prove that the method reduces the complexity of the CCAB algorithm still effectively sappresses interferences while depressing SINR is reduced in some extent. [

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