This paper describes the design and realization of the azimuth preprocess in the real-time imaging processor of SAR with programmable logic device by the method of sub-aperture using band-pass filter.

该文讨论了在合成孔径雷达实时成像处理器中，采用子孔径带通滤波成像处理方法的方位预处理的设计，构造了一种用大规模可编程逻辑器件实现方位预处理的电路结构。

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According to the results discussed above, an ideal dielectric filter can be acquired by changing the coupling aperture diameter.

讨论结果表明，可通过调整滤波器耦合槽直径的大小，得到理想性能的介质滤波器。

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The filter that our company produces, it is refined and succeeding to adopt the high polymer material, the filter has abundant capillaries and certain aperture to distribute.

本公司所生产的过滤器，采用高分子材料精制而成，过滤器具有丰富的微孔和一定的孔径分布。

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