Observation Simulation and Metrics Demonstration of FY Third-Generation Polar-Orbiting Spaceborne Wind Measurement Lidar (Invited)

Songhua Wu; Guangyao Dai; Wenrui Long; Kangwen Sun; Xiaochun Zhai; Na Xu; Jian Shang; Xiuqing Hu; Peng Zhang

doi:10.3788/AOS240800

Acta Optica Sinica, Volume. 44, Issue 18, 1800004(2024)

Observation Simulation and Metrics Demonstration of FY Third-Generation Polar-Orbiting Spaceborne Wind Measurement Lidar (Invited)

Songhua Wu^1,2、*, Guangyao Dai¹, Wenrui Long¹, Kangwen Sun¹, Xiaochun Zhai^3,4, Na Xu^3,4, Jian Shang^3,4, Xiuqing Hu^3,4, and Peng Zhang⁵

Author Affiliations

¹College of Marine Technology, Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, Shandong , China

²Laoshan Laboratory, Qingdao 266200, Shandong , China

³National Satellite Meteorological Center, Beijing 100081, China

⁴Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, China Meteorological Administration, Beijing 100081, China

⁵Meteorological Observation Center, China Meteorological Administration, Beijing 100081, China

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Figures & Tables(12)

Fig. 1. Variations of C_NR and wind speed error with detection height. (a) Wind speed error; (b) $C_{N R}$

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Fig. 2. Simulation results. (a) Double F-P transmittance curves; (b) variations of wind speed error with different parameters

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Fig. 3. Simulation system for spaceborne hybrid mode wind measurement lidar

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Fig. 4. Simulation results of radial wind profile detection by hybrid wind measurement lidar system. (a1)(b1) Coherent detection simulation results; (a2)(b2) direct detection simulation results

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Fig. 5. Schematic of dual-beam stepper detection simulation system. (a) Observation schematic; (b) schematic of synthesizing wind vectors; (c) schematic of detection trajectory

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Fig. 6. Relationships between dual-beam azimuth and u and v wind speed response sensitivities

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Fig. 7. Simulation of incoherent lidar wind profile detection based on dual-beam stepper detection. (a)(b) Radial wind speed simulation; (c) wind speed error; (d) components of wind speed

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Table 1. Partial parameters of Aeolus

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Table 1. Partial parameters of Aeolus

Parameter	Value
Wavelength /nm	354.89
Pulse energy /mJ	80
Repetition rate /Hz	50.5
Telescope diameter /m	1.5
Receive field of view（FOV） /μrad	18.1
Mean altitude /km	320
Line-of-sight（LOS） slant angle /（°）	35
Vertical resolution /km	0.25-2

Table 2. Simulation parameters of spaceborne coherent lidar
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Table 2. Simulation parameters of spaceborne coherent lidar
Group Wavelength /nm Detector noise /nA Stability /MHz Pulse width /ns Pulse energy /mJ Pulse frequency /Hz
Group 1 1064 1 0.5 500 30 1000
Group 2 200 130
Group 3 2051 10 1.0 500 125 100
Group 4 300 40

Table 3. Simulation parameters of spaceborne incoherent lidar
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Table 3. Simulation parameters of spaceborne incoherent lidar
Group Pulse energy /mJ Pulse frequency /Hz
Group 1 120 60
Group 2 100 130
Group 3 30 1000
Group 4 80 200

Table 4. Simulation parameters of spaceborne hybrid mode wind measurement lidar system

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Table 4. Simulation parameters of spaceborne hybrid mode wind measurement lidar system

Simulation parameters of spaceborne coherent lidar		Simulation parameters of spaceborne incoherent lidar		Simulation parameters of orbit
Parameter	Value	Parameter	Value	Parameter	Value
Wavelength /nm	1064	Wavelength /nm	354.84	Orbital height /km	400
Pulse energy /mJ	30	Pulse energy /mJ	30	Zenith angle /（°）	45
Pulse frequency /Hz	1000	Pulse frequency /Hz	1000	Azimuth angle /（°）	90

Table 5. Parameters for dual-beam stepper detection simulation system

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Table 5. Parameters for dual-beam stepper detection simulation system

Parameter	Value	Parameter	Value
Wavelength /nm	354.84	Orbital height /km	400
Pulse energy /mJ	30	LOS A zenith angle /（°）	35
Pulse frequency /Hz	1000	LOS A azimuth angle /（°）	90
Frequency stability /MHz	1.5	LOS B zenith angle /（°）	54.47
Detector quantum efficiency	0.43	LOS B azimuth angle /（°）	30

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Songhua Wu, Guangyao Dai, Wenrui Long, Kangwen Sun, Xiaochun Zhai, Na Xu, Jian Shang, Xiuqing Hu, Peng Zhang. Observation Simulation and Metrics Demonstration of FY Third-Generation Polar-Orbiting Spaceborne Wind Measurement Lidar (Invited)[J]. Acta Optica Sinica, 2024, 44(18): 1800004

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