Optimization Model for Operating Range of Staring Infrared Search and Track System

Bowen Yang; Chunsheng Sun; Li Kai; Jingbo Sun

doi:10.3788/AOS241785

Acta Optica Sinica, Volume. 45, Issue 8, 0804001(2025)

Optimization Model for Operating Range of Staring Infrared Search and Track System

Bowen Yang, Chunsheng Sun^*, Li Kai, and Jingbo Sun

Author Affiliations

College of Weaponry Engineering, Naval University of Engineering, Wuhan 430033, Hubei , China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(10)

Fig. 1. Possible locations of defocused spot with respect to the array grid. (a) Pixel center; (b) between two pixels; (c) between four pixels

Download full size

Fig. 2. Schematic diagram of actual target imaging

Download full size

Fig. 3. Calculation result of atmospheric transmittance

Download full size

Fig. 4. Calculation result of background spectral radiance

Download full size

Fig. 5. Discretized $M_{t}^{*} (λ_{i}^{'})$ as well as the fitted curve of $U_{t} (R)$

Download full size

Fig. 6. Discretized $N_{b}^{*} (λ_{i}^{'})$ as well as the fitted curve of $U_{b} (R)$

Download full size

Fig. 7. Relationship among n, entrance pupil diameter, and the operating range

Download full size

Table 1. Parameters of the infrared search and track system
View table
Table 1. Parameters of the infrared search and track system
Parameter Value
NA 0.25
$Δ f$ /Hz 750
$R_{S N}$ (the minimum value) 7.65
d /μm 15
N 640×512
$δ$ 0.25
$τ_{0}$ 0.7
D^* / $(c m \cdot H z^{1 / 2} \cdot W^{- 1})$ 3×10¹¹
D₀ /mm 90
$d_{c c}$ /μm 15

Table 2. MODTRAN parameter settings (atmospheric transmittance)

View table

Table 2. MODTRAN parameter settings (atmospheric transmittance)

Input parameter	Value
Calculation option	MODTRAN
Model atmosphere	Mid latitude summer
Type of atmospheric path	Slant path
Mode of execution	Transmittance
Aerosol model used	Rural‒VIS is 23 km
Use cloud/rain aerosol extensions	No clouds or rain
Observer height /m	2
Zenith angle /(°)	84

Table 3. MODTRAN parameter settings (background spectral radiance)

View table

Table 3. MODTRAN parameter settings (background spectral radiance)

Input parameter	Value
Calculation option	MODTRAN
Model atmosphere	Mid latitude summer
Type of atmospheric path	Slant path to space or ground
Mode of execution	Radiance with scattering
Aerosol model used	Rural‒VIS is 23 km
Use cloud/rain aerosol extensions	No clouds or rain
Temperature at first boundary /K	298
Observer height /m	2
Zenith angle /(°)	84
Day of year	109
Extraterrestrial source	Sun
Sun zenith angle /(°)	33

Tools

Get Citation

Copy Citation Text

Bowen Yang, Chunsheng Sun, Li Kai, Jingbo Sun. Optimization Model for Operating Range of Staring Infrared Search and Track System[J]. Acta Optica Sinica, 2025, 45(8): 0804001

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites