Mid-frequency contrast compensation for sparse aperture imaging systems by a larger sub-aperture

被引：0
|
作者：
Liu, Tai [1 ,2 ,3 ]
Zhao, Yang [1 ,3 ]
Ma, Hongcai [1 ,2 ,3 ]
Yu, Peng [1 ,3 ]
Wu, Qingwen [1 ,2 ,3 ]
Xu, Zhenbang [1 ,2 ,3 ]
Han, Hasiaoqier [1 ,2 ,3 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Chinese Acad Sci, Key Lab Onorbit Mfg & Integrat Space Opt Syst, Changchun 130033, Peoples R China
来源：
APPLIED OPTICS | 2024年 / 63卷 / 31期
基金：
中国国家自然科学基金;
关键词：
ARRAYS;
D O I：
10.1364/AO.539119
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Sparse aperture imaging systems (SAISs) always suffer mid-frequency contrast loss because of dispersion and sparsity. This paper introduces an efficient method to enlarge the sub-aperture with the most significant effect on midfrequency contrast compensation. This method is implemented by evaluating the mean square error between the modulation transfer function (MTF) of an SAIS and a monolithic aperture system with matching cutoff frequency. Two array configurations with different sub-apertures enlarged by various magnifications are simulated and their MTFs are analyzed. Subsequently, experiments are conducted by enlarging a sub-aperture within an array configuration at different magnifications. The results confirm the method's effectiveness. (c) 2024 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.
引用
收藏
页码：8082 / 8090
页数：9
相关论文
共 50 条
  • [31] Mid-frequency MTF compensation for optical synthetic aperture based on baseline transform scanning via deep learning
    Ning, Bu
    Liu, Ming
    Hui, Mei
    Zhang, Huiyan
    Sun, Yu
    Dong, Liquan
    Kong, Lingqin
    Zhao, Yuejin
    OPTICS COMMUNICATIONS, 2024, 570
  • [32] Modeling and analysis of the mid-spatial-frequency error characteristics and generation mechanism in sub-aperture optical polishing
    Wan, Songlin
    Wei, Chaoyang
    Hong, Zhi
    Shao, Jianda
    OPTICS EXPRESS, 2020, 28 (06): : 8959 - 8973
  • [33] On-line sub-aperture selection in AO closed loop systems
    Morossi, C
    Franchini, M
    Furlani, S
    ADAPTIVE OPTICS SYSTEMS AND TECHNOLOGY, 1999, 3762 : 110 - 115
  • [34] Design and implementation of sparse aperture imaging systems
    Chung, SJ
    Miller, DW
    de Weck, OL
    HIGHLY INNOVATIVE SPACE TELESCOPE CONCEPTS, 2002, 4849 : 181 - 192
  • [35] Contrast vs non-contrast enhanced microvascular imaging using acoustic sub-aperture processing (ASAP) : in vivo demonstration
    Leow, Chee Hau
    Braga, Marta
    Bush, Nigel L.
    Stanziola, Antonio
    Shah, Anant
    Hernandez-Gil, Javier
    Long, Nicholas J.
    Aboagye, Eric O.
    Bamber, Jeffrey C.
    Tang, Meng-Xing
    2018 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS), 2018,
  • [36] Analysis of comprehensive effects of piston error and sub-aperture aberrations on the image quality of sparse-optical-synthetic-aperture system
    Liu Zheng
    Wang Sheng-Qian
    Huang Lin-Hai
    Rao Chang-Hui
    ACTA PHYSICA SINICA, 2011, 60 (10)
  • [37] Sub-aperture imaging algorithm for high squint SAR with curvilinear flight tracks
    Bie B.
    Liang Y.
    Dang Y.
    Xing M.
    1600, Chinese Institute of Electronics (39): : 500 - 505
  • [38] Calibration of Mid-Frequency Aperture Array Stations Using Self-holography
    Wijnholds, Stefan J.
    2017 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA), 2017, : 967 - 970
  • [39] Sub-aperture stiching and CGH mixed compensation for the testing of large convex asphere (invited)
    Su H.
    Wang X.
    Cheng Q.
    Li L.
    Wang J.
    Li W.
    Wu Q.
    Tang W.
    Luo X.
    Zhang X.
    Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering, 2022, 51 (09):
  • [40] Differential Front-End Design for Mid-Frequency Aperture Array Design
    Zhang, Yongwei
    Brown, Anthony
    Yang, Ming
    El-Makadema, Ahmed
    Harison, Sangitiana F.
    Bosse, Stephane
    PROCEEDINGS OF THE 2015 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA), 2015, : 291 - 292
12345