【摘要】 该文提出了一种新的基于信号平稳特性的自适应波束形成算法—稳健的循环时空波束形成算法。该算法在利用信号的谱相关特性的同时使用了多个时延,将波束形成技术从空域扩展到了时空域,弥补了空域信息的不足,充分利用了信号的循环统计信息和信号的时域特征,提高了信号的选择能力和对干扰、噪声的抑制能力。仿真实验结果验证了该算法的有效性和稳健性。更多还原

【Abstract】 This paper deals with the problem of adaptive array beamforming for cyclosta-tionary signals-a novel robust cyclostationary space-time beamforming algorithm. In this algorithm, multiple lag parameters and the spectrum correlation property are used to exploit the cyclic statistical information and time domain characteristics of signals sufficiently and effectively. Moreover, this method remedies the lack of space domain information, and it is an extension from space domain to space-time domain. Therefore the ability to select the desired signals and supress the noise and interfering signals is improved. The simulation results show the effectiveness and robustness of the algorithm.更多还原