• Chinese Optics Letters
  • Vol. 19, Issue 5, 052701 (2021)
Ahui Hou1、2、*, Yihua Hu1、2、**, Nanxiang Zhao1、2, Jiajie Fang1、2, Shilong Xu1、2, and Quan Zhou1、2
Author Affiliations
  • 1State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, China
  • 2Anhui Provincial Key Laboratory of Electronic Restriction, National University of Defense Technology, Hefei 230037, China
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    DOI: 10.3788/COL202119.052701 Cite this Article Set citation alerts
    Ahui Hou, Yihua Hu, Nanxiang Zhao, Jiajie Fang, Shilong Xu, Quan Zhou. Full-waveform fast correction method for photon counting Lidar[J]. Chinese Optics Letters, 2021, 19(5): 052701 Copy Citation Text show less

    Abstract

    The first photon bias of photon detection results in distortion of the photon waveform, which seriously affects the accurate acquisition of target information. A rapid universal recursive correction method is proposed, which is suitable for multi-trigger and single-trigger modes of photon detection. The calculation time is 2 to 3 orders of magnitude faster than that of Xu et al.’s method. In the experiment, we have obtained good correction results for area targets and targets with varying depths. When the average number of echo photons is 0.89, the correlation distance of the correction waveform is reduced by 85%.
    P0(i)=1exp[N(i)],

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    P(i)={1exp[N(i)]}·exp[j=1i1N(j)].

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    FC(i)=P(i)P0(i)=exp[j=1i1N(j)],FC(i)={11+exp[N(i1)]}exp[j=1i2N(j)].

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    FC(i)=FC(i1)P(i1).

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    P(i)={1exp[N(i)]}·[1j=idead+1i1P(j)].

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    FC(i)=P(i)P0(i)=1j=idead+1i1P(j).

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    FC(i)=FC(i1)P(i1)+P(idead).

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    FC(i)={FC(i1)P(i1),ideadFC(i1)P(i1)+P(idead),i>dead,

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    Ns(i)=ln[1P(i)FC(i)]Nn.

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    RC=1(WW¯)(Ns0N¯s0)(WW¯)2(Ns0N¯s0)2,

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    Nr(t)=Nsπτet2τ2,

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    Ahui Hou, Yihua Hu, Nanxiang Zhao, Jiajie Fang, Shilong Xu, Quan Zhou. Full-waveform fast correction method for photon counting Lidar[J]. Chinese Optics Letters, 2021, 19(5): 052701
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