Analysis of Infrared Radiation Characteristics and Detectability of HTV-2-like Hypersonic Gliding Aircrafts

Xiao Yang; Qinglin Niu; Zhihong He; Shikui Dong

doi:10.3788/AOS201737.1204001

Acta Optica Sinica, Volume. 37, Issue 12, 1204001(2017)

Analysis of Infrared Radiation Characteristics and Detectability of HTV-2-like Hypersonic Gliding Aircrafts

Xiao Yang, Qinglin Niu, Zhihong He, and Shikui Dong^*

Author Affiliations

School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China

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Figures & Tables(21)

Fig. 1. Geometric structure of HTV-2-like gliding aircraft

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Fig. 2. Diagrams of flight speed and altitude of HTV-2 gliding aircraft

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Fig. 3. Diagram of heat-flux at surface

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Fig. 4. Computational mesh

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Fig. 5. Surface temperature comparison

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Fig. 6. Surface temperature distributions of HTV-2-like aircraft at altitudes of (a) 30 km and (b) 50 km

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Fig. 7. Diagram of observation angle

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Fig. 8. Spectral radiation intensity distribution at different observation directions

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Fig. 9. Total radiation intensities in different observation plane bands. (a) 3-5 μm; (b) 8-12 μm

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Fig. 10. Diagram of observation plane

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Fig. 11. Total radiation intensities in 3-5 μm band under different flight heights in YOZ plane

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Fig. 12. Detection diagram of ground-based platform

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Fig. 13. Target radiation intensity with or without atmospheric attenuation and background radiation intensity

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Fig. 14. Detection diagram of floating platform

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Fig. 15. Target radiant intensities with/without atmospheric attenuation and background radiation intensity

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Fig. 16. Detection diagram of space-based satellite

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Fig. 17. Target radiation intensity with or without atmospheric attenuation and background radiation intensity

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Table 1. Working parameters
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Table 1. Working parameters
Case Altitude /km Speed /(km·s^-1) Mach number Pressure /Pa Temperature /K
1 30 2.16 7.16 1197 226.5
2 50 5.60 17.00 79.78 270.7

Table 2. Maximum detection distance of ground-based platform

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Table 2. Maximum detection distance of ground-based platform

Condition	Wavelength /μm	3.7-4.8		3.0-5.0		7.7-9.5		8.0-12.0
Condition	Altitude /km	30	50	30	50	30	50	30	50
$\begin{matrix} {R_{1}}_{} \end{matrix}$ /km		36.7	55.2	48.5	75.7	23.8	29.6	31.9	39.6
$\begin{matrix} {R_{2}}_{} \end{matrix}$ /km		212.8	325.1	255.5	391.2	159.5	213.7	201.7	270.5
$\begin{matrix} {R_{3}}_{} \end{matrix}$ /km		543.9	735.1	567.5	761.5	479.8	641.4	503.3	671.8

Table 3. Maximum detection distance of floating platform

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Table 3. Maximum detection distance of floating platform

Condition	Wavelength /μm	3.7-4.8		3.0-5.0		7.7-9.5		8.0-12.0
Condition	Altitude /km	30	50	30	50	30	50	30	50
$\begin{matrix} {R_{1}}_{} \end{matrix}$ /km		49.7	76.3	71.9	112.2	30.2	38.4	36.3	45.9
$\begin{matrix} {R_{2}}_{} \end{matrix}$ /km		454.6	696.5	653.5	989.9	288.5	375.8	340.8	443.3
$\begin{matrix} {R_{3}}_{} \end{matrix}$ /km		(1287.7)	(1468.5)	(1287.7)	(1468.5)	(1287.7)	(1468.5)	(1287.7)	(1468.5)

Table 4. Maximum detection distances of space-based platform in medium, long and absorption wave bands

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Table 4. Maximum detection distances of space-based platform in medium, long and absorption wave bands

Condition	Wavelength /μm	3.0-5.0		8.0-12.0		2.70-2.95		4.20-4.45
Condition	Altitude /km	30	50	30	50	30	50	30	50
$\begin{matrix} {R_{11}}_{} \end{matrix}$ /km		73.7	114.7	36.6	46.1	29.6	52.0	21.4	36.3
$\begin{matrix} {R_{12}}_{} \end{matrix}$ /km		738.4	1148.9	368.2	464.6	294.1	521.4	213.1	360.6
$\begin{matrix} {R_{13}}_{} \end{matrix}$ /km		7385.4	11490.2	3683.2	4647.7	2943.6	5216.4	2129.4	3604.9
$\begin{matrix} {R_{21}}_{} \end{matrix}$ /km		71.7	113.4	35.9	46.0	29.2	51.8	18.2	35.5
$\begin{matrix} {R_{22}}_{} \end{matrix}$ /km		699.7	1138.5	345.1	461.1	273.1	515.0	133.5	335.8
$\begin{matrix} {R_{23}}_{} \end{matrix}$ /km		6987.9	11388.6	3440.4	4613.4	2710.8	5146.1	1205.2	3347.4
$\begin{matrix} {R_{31}}_{} \end{matrix}$ /km		70.7	112.3	35.3	45.7	29.0	51.1	17.7	35.2
$\begin{matrix} {R_{32}}_{} \end{matrix}$ /km		383.4	570.2	304.6	399.3	205.3	372.1	96.8	208.2
$\begin{matrix} {R_{33}}_{} \end{matrix}$ /km		575.5	765.8	537.8	714.5	387.1	573.6	205.4	374.5

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Xiao Yang, Qinglin Niu, Zhihong He, Shikui Dong. Analysis of Infrared Radiation Characteristics and Detectability of HTV-2-like Hypersonic Gliding Aircrafts[J]. Acta Optica Sinica, 2017, 37(12): 1204001

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