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为了减小实时处理所需的运算量,本文提出了一种对时、空二维信号进行非自适应准最佳处理的方法,而不采用二维自适应最佳处理。用时间对消器对消掉与目标同方向的主杂波。用空间对消器对消掉与目标同多普勒频率的副瓣杂波。然后用FFT和DBF分别作为多通道时间滤波器组和空间滤波器滤除其余杂波。该方法与任何报道过的方法相比,运算量最小,且性能接近最佳。
In order to reduce the amount of computation required in real-time processing, this paper presents a method of non-adaptive quasi-optimal processing of two-dimensional signals, rather than two-dimensional adaptive optimal processing. Eliminate the main clutter in the same direction as the target with time canceller. Elimination of sidelobe clutter at the same Doppler frequency as the target with space canceller. Then use FFT and DBF as multi-channel temporal filter bank and spatial filter to filter out the remaining clutter. Compared with any reported method, this method has the least amount of computation and the near-optimal performance.