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本文探讨了用数字方法形成多波束的原理,提出了用数字配相网络和FFT来实现数字多波束的方法。为了验证其正确性,在DJS-130计算机上进行了模拟运算,举例给出了无噪声与有噪声情况下的四波束方向图。对这一方法的可能应用范围也有所提及,可供雷达系统方案论证参考。
In this paper, the principle of forming multi-beams by digital method is discussed. A method of realizing digital multi-beam using digital phase-matching network and FFT is proposed. In order to verify its correctness, a simulation operation was carried out on the DJS-130 computer, giving an example of a four-beam pattern without noise and noise. The possible applications of this method are also mentioned and are available for reference in the radar system demonstration.