Quantitative method for calculating spatial release region for laser-guided bomb

doi:10.23919/JSEE.2024.000083

Journal of Systems Engineering and Electronics ›› 2024, Vol. 35 ›› Issue (4): 1053-1062.doi: 10.23919/JSEE.2024.000083

• CONTROL THEORY AND APPLICATION • Previous Articles

Quantitative method for calculating spatial release region for laser-guided bomb

Ping YANG¹^,*(), Bing XIAO¹(), Xin CHEN¹(), Yuntao HAO²()

¹ Air Force Early Warning Academy, Wuhan 430019, China
² Unit 93175 of the PLA, Changchun 136000, China

Received:2023-03-13 Accepted:2023-11-07 Online:2024-08-18 Published:2024-08-06
Contact: Ping YANG E-mail:vip_zzz@163.com;494701394@qq.com;cxin917@126.com;vip_zzz1107@126.com
About author:
YANG Ping was born in 1985. He received his master’s degree from Changchun University of Science and Technology. He is currently a Ph.D. student at the Air Force Early Warning Academy. His research interests are data mining and operational use of airborne guided weapons. E-mail: vip_zzz@163.com

XIAO Bing was born in 1966. She received her Ph.D. degree from Huazhong University of Science and Technology. She is a lecturer at the Air Force Early Warning Academy. Her research interests are complex systems analysis and evaluation E-mail: 494701394@qq.com

CHEN Xin was born in 1982. He received his Ph.D. degree from the National Defense University. He is an instructor at the Air Force Early Warning Academy. His research interests are cloud computing intelligent gaming and collaborative intelligence processing. E-mail: cxin917@126.com

HAO Yuntao was born in 1976. He received his master’s degree from the National Defense University. He is a sentor engieer at People’s liberation Army Unit 93175. His research interests operational applications of tactical weapons, and are mission planning for air-to-ground guided weapons.E-mail: vip_zzz1107@126.com
Supported by:
This work was supported by the major research projects within the military-international class (JY2021B077).

Abstract

Abstract:

The laser-guided bomb (LGB) is an air-to-ground precision-guided weapon that offers high hit rates, great power, and ease of use. LGBs are guided by semi-active laser ground-seeking technology, which means that atmospheric conditions can affect their accuracy. The spatial release region (SRR) of LGBs is difficult to calculate precisely, especially when there is a poor field of view. This can result in a lower real hit probability. To increase the hit probability of LGBs in tough atmospheric situations, a novel method for calculating the SRR has been proposed. This method is based on the transmittance model of the 1.06 μm laser in atmospheric species and the laser diffuse reflection model of the target surface to determine the capture target time of the laser seeker. Then, it calculates the boundary ballistic space starting position by ballistic model and gets the spatial scope of the spatial release region. This method can determine the release region of LGBs based on flight test data such as instantaneous velocity, altitude, off-axis angle, and atmospheric visibility. By more effectively employing aircraft release conditions, atmospheric visibility and other factors, the SRR calculation method can improve LGB hit probability by 9.2%.

Key words: laser-guided bombs (LGBs), hit probability, atmospheric transmittance, spatial release region (SRR) boundary ballistic

Ping YANG, Bing XIAO, Xin CHEN, Yuntao HAO. Quantitative method for calculating spatial release region for laser-guided bomb[J]. Journal of Systems Engineering and Electronics, 2024, 35(4): 1053-1062.

Figures/Tables 15

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Equipment	Parameters	Values
Aircraft	Flight height/km	3
Aircraft	Speed/(m/s)	260
LDP	Energy/mJ	150
	Pulse width/ns	10-30
	Operating wavelength/μm	1.06
	Beam divergence angle/mrad	0.5
LGBs	Quality/ kg	500
	Aerodynamic area/m²	0.1116
	Equivalent aerodynamic length/m	0.4
	Max. field of view angle/(°)	30
	Roll, yaw, and pitch rotational inertia/(kg·m²)	12.9280 280
	Energy density threshold/(W/cm²)	10⁻⁷
	Optical aperture/mm	80
	Target diffuse reflectance/%	20

Ratio	Total sample
Ratio	Hit samples	Miss samples
Within SRR	81.5	7.5
Outside SRR	1.5	9.5

Quantitative method for calculating spatial release region for laser-guided bomb

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