3D coherent imaging ladar based on FMCW technology

Zhiyong Lu; Wei Lu; Yu Zhou; Jianfeng Sun; Zhu Luan; Peipei Hou; Qian Xu

doi:10.1117/12.2321045

18 September 2018 3D coherent imaging ladar based on FMCW technology

Zhiyong Lu, Wei Lu, Yu Zhou, Jianfeng Sun, Zhu Luan, Peipei Hou, Qian Xu

Proceedings Volume 10772, Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2018; 107720Z (2018) https://doi.org/10.1117/12.2321045
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

3D coherent imaging ladar based on frequency modulated continuous wave (FMCW) technology is proposed. The triangle wave is used to modulate chirped laser. The distance information is detected by optical heterodyne technique. Meanwhile, the beam scanning is realized by rotation double-prism. And the 3D target image is obtained. The 3D coherent imaging ladar has advantages of anti-background interference, high sensitivity and long-detected distance. Under the condition of the strongly sunlight background, the targets outdoor are scanned and high resolution images are achieved. This technique has a great potential for applications in extensive imaging ladar fields.

Citation Download Citation

Zhiyong Lu, Wei Lu, Yu Zhou, Jianfeng Sun, Zhu Luan, Peipei Hou, and Qian Xu "3D coherent imaging ladar based on FMCW technology", Proc. SPIE 10772, Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2018, 107720Z (18 September 2018); https://doi.org/10.1117/12.2321045

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