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Research on Micro-Pulse CO2 Detection LIDAR Based on Differential Absorption Coherent Detection
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Yaqi LIU1, Fei LI1, Enda CAO1, Zuohan LI1, Xiangtong WEI1, Wei PAN1, Jing LI1, Yiming ZHAO2
Journal of Telemetry, Tracking and Command | 2025, 46(4) : 132 - 139
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Journal of Telemetry, Tracking and Command | 2025, 46(4): 132-139
• Radar and Countermeasures •
Research on Micro-Pulse CO2 Detection LIDAR Based on Differential Absorption Coherent Detection
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Yaqi LIU1, Fei LI1, Enda CAO1, Zuohan LI1, Xiangtong WEI1, Wei PAN1, Jing LI1, Yiming ZHAO2
Affiliations
  • 1.Beijing Research Institute of Telemetry, Beijing 100076, China
  • 2.Beijing Institute of Technology, Beijing 100081, China
Published: 2025-07-15 doi: 10.12347/j.ycyk.20241220001
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With the continuous increase of global greenhouse gas concentrations and the escalating issue of climate warming, lidar based on the differential absorption coherent detection principle has become crucial for vertical profiles of greenhouse gas concentrations. To address the technical challenges in current ground-based CO₂ detection lidar systems of simultaneously achieving high integration, high precision, high range resolution, and long-term stability, this study developed a micro-pulse CO2 profiling lidar operating at 1.57 μm with an all-fiber-integrated architecture. The system combines an injection-locked fiber laser and an off-axis reflective telescope in a coaxial transceiver design, realizing a compact system architecture(0.93 m × 0.34 m × 0.34 m) and sub-picometer wavelength stability (<0.6 pm under 10°C~40°C thermal variations). Horizontal detection experiments as well as continuous observation experiments were conducted. Experiments for horizontal detection revealed a significant linear relationship (R2=0.998) between the logarithmic ratio of dual-wavelength echo power and the detection range, confirming system precision; and the stability of the lidar system was verified by a continuous observation experiment.

Differential absorption  /  Coherent detection  /  CO2  /  LIDAR
Yaqi LIU, Fei LI, Enda CAO, Zuohan LI, Xiangtong WEI, Wei PAN, Jing LI, Yiming ZHAO. Research on Micro-Pulse CO2 Detection LIDAR Based on Differential Absorption Coherent Detection[J]. Journal of Telemetry, Tracking and Command, 2025 , 46 (4) : 132 -139 . DOI: 10.12347/j.ycyk.20241220001
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Year 2025 volume 46 Issue 4
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Article Info
doi: 10.12347/j.ycyk.20241220001
  • Receive Date：2024-12-20
  • Online Date：2026-03-13
  • Published：2025-07-15
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  • Received：2024-12-20
  • Revised：2025-03-02
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    1.Beijing Research Institute of Telemetry, Beijing 100076, China
    2.Beijing Institute of Technology, Beijing 100081, China
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表12种不同金属材料的力学参数
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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