This paper presents a self focusing filter which is composed of matched filter with sine form and Fresnel zone plate by means of area coded method.
本文介绍用面积编码的方法将滤波函数为正弦函数的匹配滤波器和菲涅耳波带片组合在一起的自聚焦滤波器。
2
There are many methods to measure the pattern of phased array antenna, such as the technique of plane scanning in near field, focusing method in Fresnel zone, general method in far field, etc.
阐述了用聚焦法在菲涅尔区测试相控阵天线的理论依据及实现方法，用实验结果对近远场方向图进行了比较。
3
One dimensional Fresnel zone phase correcting plate has its focusing characteristics similar to that of the paraboloid cylinder.