Infrared remote sensing imaging simulation method for earth’s limb scene

Xueqi Chen; Minjie Wan; Yunkai Xu; Weixian Qian; Qian Chen; Guohua Gu

doi:10.3788/IRLA20210896

Journals >Infrared and Laser Engineering >Volume 51 >Issue 2 >Page 20210896 > Article

Infrared and Laser Engineering
Vol. 51, Issue 2, 20210896 (2022)

Infrared remote sensing imaging simulation method for earth’s limb scene

Xueqi Chen^1、2, Minjie Wan^1、2、*, Yunkai Xu^1、2, Weixian Qian^1、2, Qian Chen^1、2, and Guohua Gu^1、2、*

Author Affiliations

¹School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

²Jiangsu Key Laboratory of Spectral Imaging & Intelligent Sense, Nanjing University of Science and Technology, Nanjing 210094, China

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DOI: 10.3788/IRLA20210896 Cite this Article

Xueqi Chen, Minjie Wan, Yunkai Xu, Weixian Qian, Qian Chen, Guohua Gu. Infrared remote sensing imaging simulation method for earth’s limb scene[J]. Infrared and Laser Engineering, 2022, 51(2): 20210896 Copy Citation Text

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Fig. 1. Schematic diagram of midpoint displacement

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Fig. 2. Schematic diagram of infrared image simulation of earth limb scene

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Fig. 3. Schematic diagram of transformation between coordinate systems

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Fig. 4. Schematic diagram of infrared simulation effect of earth limb scene (Without noise)

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Fig. 5. Schematic diagram of infrared simulation effect of earth limb scene (Including noise)

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Parameters	(a)	(b)	(c)	(d)	(e)	(f)	(g)	(h)	(i)	(j)	(k)	(l)
Focal length/mm	20	20	20	20	40	40	40	40	60	60	60	80
Obliquity of satellite orbit/rad	0	0	0	0	20	20	20	20	0	20	0	20
Altitude of satellite orbit/km	2 000	2 000	2 000	2 000	10 000	10 000	10 000	10 000	20 000	20 000	20 000	20 000
Longitude of virtual target/rad	5π/12	5π/12	7π/12	7π/12	5π/12	5π/12	7π/12	7π/12	5π/12	5π/12	7π/12	7π/12
Latitude of virtual target/rad	π/18	π/6	π/18	π/6	π/18	π/6	π/18	π/6	π/18	π/6	π/18	π/6
Altitude of virtual target/km	100	200	200	200	500	500	3 000	3 000	200	200	5 000	5 000
Longitude of direct sunlight/rad	0	2π/3	4π/3	0	2π/3	4π/3	0	2π/3	4π/3	0	2π/3	4π/3
Latitude of direct sunlight/rad	−π/9	−π/9	−π/9	0	0	0	π/9	π/9	π/9	−π/9	0	π/9

Table 1. Simulation parameters

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Evaluation index image in figures	LS		GMG		Runtime/s
Evaluation index image in figures	Fig.4	Fig.5	Fig.4	Fig.5	Runtime/s
(a)	0.085	0.078	0.34	0.33	98.57
(b)	0.090	0.080	0.44	0.40	98.71
(c)	0.11	0.10	0.50	0.50	164.22
(d)	0.13	0.11	0.71	0.61	87.30
(e)	0.13	0.12	0.58	0.53	105.50
(f)	0.14	0.12	0.63	0.57	111.58
(g)	0.17	0.15	0.81	0.76	154.30
(h)	0.16	0.15	0.85	0.77	108.92
(i)	0.22	0.23	0.98	1.16	156.75
(j)	0.19	0.17	0.94	0.85	139.99
(k)	0.19	0.19	0.93	0.99	144.22
(l)	0.14	0.13	0.68	0.68	111.33
Average	0.15	0.14	0.70	0.68	123.45

Table 2. Image evaluation metrics

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