Title :
Three-dimensional hit-to-kill guidance law for direct thrust controlled interceptor
Author :
Naigang Cui ; Feng Yang ; Changzhu Wei
Author_Institution :
Sch. of Astronaut., Harbin Inst. of Technol., Harbin, China
Abstract :
A three-dimensional hit-to-kill guidance law is designed for the direct thrust controlled kinetic kill vehicle to against maneuvering near-space hypersonic targets, which is based-on the Smooth Second-Order Sliding Modes (SSOSM) control law and Non-Homogeneous High-Order Sliding Mode Observer (NHHOSMO). The normal velocity of the Line-of-Sight (LOS) is chosen to be sliding variable based-on the principle of zero angular velocity of LOS. Decoupling between different channels is realized by regarding the coupling term of sight angular rate, the acceleration component of the maneuvering target to be uncertainties, which will be accurately estimated by the NHHOSMO. The feasibility of the guidance law is verified by simulation, where the Pulse-Width Modulation technical is used to implement direct thrust control.
Keywords :
control system synthesis; observers; path planning; variable structure systems; weapons; LOS velocity; NHHOSMO; SSOSM control law; direct thrust controlled interceptor; direct thrust controlled kinetic kill vehicle; line-of-sight velocity; maneuvering near-space hypersonic targets; nonhomogeneous high-order sliding mode observer; pulse-width modulation technical; smooth second-order sliding modes; three-dimensional hit-to-kill guidance law; zero angular velocity principle; Acceleration; Aerodynamics; Mathematical model; Noise; Observers; Robustness; Uncertainty; Hit-to-Kill; Non-Homogeneous High-Order Sliding Mode Observer; Pulse-Width Modulation; Three-Dimensional Guidance Law;
Conference_Titel :
Control and Decision Conference (CCDC), 2015 27th Chinese
Conference_Location :
Qingdao
Print_ISBN :
978-1-4799-7016-2
DOI :
10.1109/CCDC.2015.7162717
