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Acta Optica Sinica, Volume. 39, Issue 9, 0928002(2019)

Full Aperture Imaging Algorithm of Airborne Synthetic Aperture Ladar

Hongfei Yin1, Liang Guo1,2、*, Lichao Yang3, Guangcai Sun3, Mengdao Xing3, and Xiaodong Zeng1
Author Affiliations
  • 1 School of Physics and Optoelectronic Engineering, Xidian University, Xi'an, Shaanxi 710071, China
  • 2 State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei, Anhui 230037, China
  • 3 National Key Laboratory of Radar Signal Processing, Xidian University, Xi'an, Shaanxi 710071, China
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    Airborne SAL imaging geometry and azimuthal phase and Doppler graph of SAL signal. (a) Airborne SAL imaging geometry; (b) azimuthal phase of SAL signal; (c) Doppler graph of SAL signal

    Fig. 1. Airborne SAL imaging geometry and azimuthal phase and Doppler graph of SAL signal. (a) Airborne SAL imaging geometry; (b) azimuthal phase of SAL signal; (c) Doppler graph of SAL signal

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    Flow chart of the SAL full-aperture imaging algorithm

    Fig. 2. Flow chart of the SAL full-aperture imaging algorithm

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    Optical picture and the sub-aperture imaging result of the ground target. (a) Optical picture of the ground target; (b) SAL sub-aperture imaging result

    Fig. 3. Optical picture and the sub-aperture imaging result of the ground target. (a) Optical picture of the ground target; (b) SAL sub-aperture imaging result

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    SAL sub-aperture error phase. (a) The first sub-aperture; (b) the second sub-aperture; (c) the third sub-aperture; (d) the fourth sub-aperture; (e) the fifth sub-aperture

    Fig. 4. SAL sub-aperture error phase. (a) The first sub-aperture; (b) the second sub-aperture; (c) the third sub-aperture; (d) the fourth sub-aperture; (e) the fifth sub-aperture

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    Full-aperture error phase and the SAL full-aperture imaging result. (a) Full-aperture error phase; (b) SAL full-aperture imaging result

    Fig. 5. Full-aperture error phase and the SAL full-aperture imaging result. (a) Full-aperture error phase; (b) SAL full-aperture imaging result

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    SNR comparison of the sub-aperture imaging and the full-aperture imaging. (a) Sub-aperture imaging result; (b) full-aperture imaging result

    Fig. 6. SNR comparison of the sub-aperture imaging and the full-aperture imaging. (a) Sub-aperture imaging result; (b) full-aperture imaging result

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    Hongfei Yin, Liang Guo, Lichao Yang, Guangcai Sun, Mengdao Xing, Xiaodong Zeng. Full Aperture Imaging Algorithm of Airborne Synthetic Aperture Ladar[J]. Acta Optica Sinica, 2019, 39(9): 0928002

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    Paper Information

    Category: Remote Sensing and Sensors

    Received: Mar. 28, 2019

    Accepted: May. 23, 2019

    Published Online: Sep. 9, 2019

    The Author Email: Liang Guo (lguo@mail.xidian.edu.cn)

    DOI:10.3788/AOS201939.0928002

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology