Research on effective probability of high-repetition interference in semi-active laser guided weapon system

Qiu Xiong; Liu Zhiguo; Wang Shicheng

doi:10.3788/IRLA201948.1005004

In the seeker gate, whether the guidance signal can enter and whether the high-frequency interference is advanced is a probability problem. The probabilistic analysis method was used to discuss the probability (guidance probability) of the guided laser entering the gate and the probability (advance probability) of the first pulse of the high-frequency laser leading the guided laser. By studying the relationship between the guidance probability and the standard deviation of the laser light extraction time (standard deviation of laser timing) and the relationship between the guidance probability and the gate width, it was concluded that when the gate width was 6.18 times the standard deviation of the laser timing, the guided laser can be considered to completely enter the seeker gate. Based on the guidance probability, the relationship between the advance probability and the number of high-frequency pulses in the gate was obtained; the relationship between the advance probability and the gate width at different high-frequency laser frequencies was gained. When there were 4 high-frequency pulses in the gate, the advance probability was 98.21%. Therefore, from the laser guidance, the seeker gate width can be selected according to the standard deviation of laser timing to achieve accurate guidance; from the high-frequency interference effect, the high-frequency interference frequency can be determined according to the seeker gate width to achieve effective interference.

Research on effective probability of high-repetition interference in semi-active laser guided weapon system

1. Precision Guidance and Simulation Laboratory,Rocket Force Engineering University,Xi'an 710025,China

Received Date: 2019-06-11

Rev Recd Date: 2019-07-21

Publish Date: 2019-10-25

Key words:

Abstract: In the seeker gate, whether the guidance signal can enter and whether the high-frequency interference is advanced is a probability problem. The probabilistic analysis method was used to discuss the probability (guidance probability) of the guided laser entering the gate and the probability (advance probability) of the first pulse of the high-frequency laser leading the guided laser. By studying the relationship between the guidance probability and the standard deviation of the laser light extraction time (standard deviation of laser timing) and the relationship between the guidance probability and the gate width, it was concluded that when the gate width was 6.18 times the standard deviation of the laser timing, the guided laser can be considered to completely enter the seeker gate. Based on the guidance probability, the relationship between the advance probability and the number of high-frequency pulses in the gate was obtained; the relationship between the advance probability and the gate width at different high-frequency laser frequencies was gained. When there were 4 high-frequency pulses in the gate, the advance probability was 98.21%. Therefore, from the laser guidance, the seeker gate width can be selected according to the standard deviation of laser timing to achieve accurate guidance; from the high-frequency interference effect, the high-frequency interference frequency can be determined according to the seeker gate width to achieve effective interference.

HTML

Reference (9)

[1]	Tong Zhongcheng. Simulation study on the lead time of laser angle deception jamming signal[J]. Journal of Ordnance Engineering, 2008, 29(5):633-636. (in Chinese)童忠诚. 激光角度欺骗干扰信号超前时间的仿真研究[J].兵工学报, 2008, 29(5):633-636.
[2]	Zhang Shuai, Liu Zhiguo, Wang Shicheng. Research on modeling and simulation evaluation of high-repetition frequency laser interference guidance weapons[J].Infrared and Laser Engineering, 2016, 45(3):0306008. (in Chinese)张帅, 刘志国, 王仕成. 高重频激光干扰制导武器建模与仿真评估研究[J]. 红外与激光工程, 2016, 45(3):0306008.
[3]	Li Shuanggang. Mathematical simulation of laser signal acquisition by guided waveguide under interference conditions[J]. Infrared and Laser Engineering, 2016, 45(1):0106003. (in Chinese)李双刚.干扰条件下制导波门对激光信号录取的数学仿真[J]. 红外与激光工程, 2016, 45(1):0106003.
[4]	Chu Zhenfeng, Wang Defei, Wang Jinfeng, et al. A laser seeker interference strategy based on gate-induced decoup[J]. Laser Technology, 2016, 40(6):779-781. (in Chinese)楚振锋, 王德飞, 王金峰, 等. 一种基于波门诱偏的激光导引头干扰策略[J]. 激光技术, 2016, 40(6):779-781.
[5]	Bao Haige. Development of foreign laser semi-active homing guided weapons[J]. Ship Electronic Engineering, 2010, 30(5):21-25, 83. (in Chinese)鲍海阁. 国外激光半主动寻的制导武器的发展[J]. 舰船电子工程, 2010, 30(5):21-25, 83.
[6]	Liu Zhiying, Xing Tianxiang. Laser semi-active seeker optical system design[J]. Laser and Infrared, 2016, 46(5):527-531. (in Chinese)刘智颖, 刑天祥. 激光半主动导引头光学系统设计[J]. 激光与红外, 2016, 46(5):527-531.
[7]	Zuo Guangsheng, Chai Lifei, Ma Haobing, et al. Research on high-frequency pulse laser ranging echo processing technology[J]. China University of Science and Technology, 2018, 29(1):1-7. (in Chinese)左胜广, 柴利飞, 马号兵, 等.高重频脉冲激光测距回波处理技术研究[J]. 中国计量大学学报, 2018, 29(1):1-7.
[8]	Wang Yunping, Zhang Haiyang, Zheng Xingyuan, et al. Analysis of interference mechanism of high-frequency laser to laser guided weapon[J]. Laser Technology,2014, 38(1):21-25. (in Chinese)王云萍, 张海洋, 郑星元, 等.高重频激光对激光制导武器的干扰机理分析[J]. 激光技术, 2014, 38(1):21-25.
[9]	Li hui, Liang Weiwei, Yin Ruiguang, et al. Influence of interference and noise on laser guidance performance and accuracy[J]. Infrared and Laser Engineering, 2017, 46(2):0206005. (in Chinese)李慧, 梁巍巍, 殷瑞光, 等.干扰和噪声对激光制导性能及精度的影响[J]. 红外与激光工程, 2017, 46(2):0206005.

Research on effective probability of high-repetition interference in semi-active laser guided weapon system

doi: 10.3788/IRLA201948.1005004

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Article Metrics

Related

Proportional views