Liu Zhenya, Gao Min, Xu Lutie. Line-of-sight angle estimation method of strapdown munition based on ideal trajectory[J]. Infrared and Laser Engineering, 2018, 47(4): 417008-0417008(7). doi: 10.3788/IRLA201847.0417008
| Citation:
|
Liu Zhenya, Gao Min, Xu Lutie. Line-of-sight angle estimation method of strapdown munition based on ideal trajectory[J]. Infrared and Laser Engineering, 2018, 47(4): 417008-0417008(7). doi: 10.3788/IRLA201847.0417008
|
Line-of-sight angle estimation method of strapdown munition based on ideal trajectory
- 1.
Missile Engineering Department,Ordnance Engineering College of People's Liberation Army,Shijiazhuang 050003,China;
- 2.
Munition Engineering Department,Ordnance Engineering College of People's Liberation Army,Shijiazhuang 050003,China
- Received Date: 2017-11-10
- Rev Recd Date:
2017-12-20
- Publish Date:
2018-04-25
-
Abstract
Aiming at the problem that inertial measurement unit can not meet the operation requirement of the low cost guidance munition, a line-of-sight (LOS) angle estimation method of strapdown semi-active laser-guided munition based on ideal trajectory was proposed. According to the relative motion model between ammunition and target and the seeker measurement model, the nonlinear filter system was built. Aiming at the features that the ballistic parameters varied in the small range, this algorithm took the ideal trajectory parameters as filter parameters by analyzing the impact from projectile motion parameters on the system uncertainty; the LOS angel was estimated by using the measurement information from laser semiactive seeker and the cubature Kalman filter (CKF). The digital simulation results showed that under the condition of small disturbance, the root mean square errors (RMSE) of LOS inclination and declination are 0.182nd 1.668, the max estimation errors of them are 0.259 and 2.913. The algorithm has better estimation precision and robust property.
-
References
|
[1]
|
Wang Wei, Lin Defu, Xu Ping. Strap-down seeker LOS angular rate estimation[J]. Infrared and Laser Engineering, 2015, 44(10):3066-3069. (in Chinese) |
|
[2]
|
Yao Yu, Zhang Guojiang. Discussion on strapdown imaging guidance system[J]. Infrared and Laser Engineering, 2006, 35(1):1-6. (in Chinese) |
|
[3]
|
Vaddi S S, Menon P K. Target state estimation for integrated guidance-control of missiles[C]//AIAA Guidance, Navigation and Control Conference and Exhibit, 2007:1-22. |
|
[4]
|
Wu Hao, Chen Shuxin, Yang Binfeng. Robust range-parameterized cubature Kalman filter for bearings-only tracking[J]. Journal of Central South University, 2016, 23(6):1-8. (in Chinese) |
|
[5]
|
Katkuri J R, Jilkov V P, Li X R. A comparative study of nonlinear filters for target tracking in mixed coordinates[C]//Proc of the 42nd South Eastern Symposium on System Theory, 2010:202-207. |
|
[6]
|
Li Xinglong, Yao Wenjin, Wang Xiaoming, et al. Target localization method of semi active laser terminal correction projectile[J]. Transactions of Beijing Insititute of Technology, 2016, 36(4):387-392. (in Chinese) |
|
[7]
|
Sun Tingting, Chu Hairong, Jia Hongguang, et al. Line-of-sight angular rate estimation of strapdown optical image seeker[J]. Acta Optica Sinica, 2014, 34(6):0612010. (in Chinese) |
|
[8]
|
Lin Zhe, Yao Yu, Ma Kemao. ACDKF inertial LOS reconstruction filter with strapdown imaging seeker[J]. Infrared and Laser Engineering, 2008, 37(3):400-405. (in Chinese) |
|
[9]
|
Liu Yi, Zhao Jing, Feng Dejun, et al. Seeker measurement error suppressing using precision speed information of inertial navigation system[J]. Acta Electronica Sinica, 2011, 39(9):2207-2211. (in Chinese) |
|
[10]
|
Icnkaran Arasaratnam, Simon Haykin. Cubature Kalman filters[J]. IEEE Transactions on Automatic Control, 2009, 54(6):1254-1269. |
|
[11]
|
Wang Xiaoxu, Pan Quan, Huang He, et al. Overview of deterministic sampling filtering algorithms for nonlinear system[J]. Control and Decision, 2012, 27(6):801-812. (in Chinese) |
-
-
Proportional views
-
DownLoad: