TY - GEN
T1 - MTF-based research on the minimum fill factor in optical sparse aperture system
AU - Yanchao, Jiang
AU - Zhile, Wang
AU - Ming, Zhao
AU - Liu, Zhang
PY - 2011
Y1 - 2011
N2 - To avoid the loss of image information when it is transferred through optical sparse aperture system with excessively diluted apertures arrangement, we propose a method in the frequency domain termed characteristic triangle to calculate the minimum fill factor. This method is based on the characteristics of MTF and demonstrates that when the characteristic triangle is equilateral with each side 3th power of sub-MTF cutoff frequency, MTF has no zero value below cutoff frequency, thus we can obtain the minimum fill factor. Furthermore, we apply it to some typical sparse arrays, such as Golay3, Golay6, Ring6 and Tri-arm7, and get their fill factors of 33.33%, 15.16%, 30.11%, and 11.14% correspondingly, which are consistent with numerical results.
AB - To avoid the loss of image information when it is transferred through optical sparse aperture system with excessively diluted apertures arrangement, we propose a method in the frequency domain termed characteristic triangle to calculate the minimum fill factor. This method is based on the characteristics of MTF and demonstrates that when the characteristic triangle is equilateral with each side 3th power of sub-MTF cutoff frequency, MTF has no zero value below cutoff frequency, thus we can obtain the minimum fill factor. Furthermore, we apply it to some typical sparse arrays, such as Golay3, Golay6, Ring6 and Tri-arm7, and get their fill factors of 33.33%, 15.16%, 30.11%, and 11.14% correspondingly, which are consistent with numerical results.
KW - Characteristic Triangle
KW - MTF
KW - Sparse Aperture
KW - the Minimum Fill Factor
UR - https://www.scopus.com/pages/publications/79956049453
U2 - 10.1109/ICICTA.2011.438
DO - 10.1109/ICICTA.2011.438
M3 - 会议稿件
AN - SCOPUS:79956049453
SN - 9780769543536
T3 - Proceedings - 4th International Conference on Intelligent Computation Technology and Automation, ICICTA 2011
SP - 612
EP - 615
BT - Proceedings - 4th International Conference on Intelligent Computation Technology and Automation, ICICTA 2011
T2 - 2011 4th International Conference on Intelligent Computation Technology and Automation, ICICTA 2011
Y2 - 28 March 2011 through 29 March 2011
ER -