CAJ | 학술논문

提出了一种由九个孔径组成的稀疏孔径结构.给出了该孔径结构的光瞳函数,并分析了其孔径结构的特点.具体对不同填充因子时的新结构进行了仿真,得出了新型稀疏孔径结构的调制传递函数的分布特点,以及系统的等效直径和调制传递函数的变化情况.对新型稀疏孔径结构与三臂结构进行了比较和分析,新结构的传递函数分布比较均匀,对频域有较大的覆盖面积,系统的等效直径较大.新结构在等效直径和调制传递函数的均匀性方面优于所比较的三臂稀疏孔径结构,新结构在成像性能方面具有一定的优势.
제출료일충유구개공경조성적희소공경결구.급출료해공경결구적광동함수,병분석료기공경결구적특점.구체대불동전충인자시적신결구진행료방진,득출료신형희소공경결구적조제전체함수적분포특점,이급계통적등효직경화조제전체함수적변화정황.대신형희소공경결구여삼비결구진행료비교화분석,신결구적전체함수분포비교균균,대빈역유교대적복개면적,계통적등효직경교대.신결구재등효직경화조제전체함수적균균성방면우우소비교적삼비희소공경결구,신결구재성상성능방면구유일정적우세.
A new sparse aperture configuration composed by nine sub-apertures is proposed.The pupil function of the new configuration is given and the characteristic of its pupil function is analyzed.The simulation of the new configuration with different fill factors is done by computer.The characteristics of the modulation transfer function (MTF) and the changes of the equivalent diameter are analyzed.The new configuration has a large and uniform coverage in the frequency field.By comparing the new configuration with the Tri-Arms configuration,the result shows that:the new configuration is better than the Tri-Arms configuration in the equivalent diameter and the uniformity of the MTF.The new configuration has advantages in remote imaging.