基于空频滤波的并行单星约束波束形成算法

由于空域抗干扰算法形成零陷时会导致有用信号一定程度失真,提出了基于空频滤波的并行单星约束波束形成算法。针对宽带接收机的应用,在空频二维宽带处理器的模型下,将各阵元接收数据变换到频域;通过频域并行单星约束方程,保证信号带宽内每个频点上的信噪比,有效防止了传统算法对有用信号的衰减。最后,将每颗卫星信号逆变换到时域,便得到了干扰抑制之后的全部卫星信号。计算机仿真验证了理论分析的正确性和算法的稳健性。

Parallel Single Star Constrained Beamforming Algorithm Based on Space Frequency Filter

Since the spatial nulling anti-jamming algorithm results in a certain degree of distortion of the useful signals, a parallel single star constrained beamforming algorithm based on space-frequency filter is proposed. For broadband receiver applications, in the space-frequency two-dimensional broadband processor model, the algorithm transforms receiving data into the frequency domain data. The algorithm guarantees the signal to noise ratio corresponding to frequency point of the signal bandwidth through the frequency domain parallel single star constraint equations. It can effectively prevent the distortion of useful signals caused by the traditional algorithm. Finally, the algorithm inversely transforms each satellite signal to the time domain, we get all the satellite signals after interference suppression. Computer simulation verifies the correctness of the theoretical analysis and the robust.