Fig 1

Transform relationship of coordinate systems"

Fig 2

Seeker tracking the energy center"

Fig 3

Guidance control loop of seeker in normal state"

Fig 4

Guidance control loop of seeker under anti-infrared decoy state"

Table 1

Initial value of Kalman filter estimation"

Table 2

Initial estimation error of state variables"

Table 3

Different cases with measurements"

Fig 5

Simulation of ${{R}}$ "

Fig 6

Simulation of $\dot {{R}}$ "

Fig 7

Simulation of ${{{q}}_{{p}}}$ "

Fig 8

Simulation of ${\dot{{ q}}_{{p}}}$ "

Fig 9

Simulation of ${{{q}}_{{y}}}$ "

Fig 10

Simulation of ${\dot {{q}}_{{y}}}$ "

Fig 11

Simulation of ${{{a}}_{{{tx}}}}$ "

Fig 12

Simulation of ${{{a}}_{{{ty}}}}$ "

Fig 13

Simulation of ${{{a}}_{{{tz}}}}$ "

Fig 14

Motion of the missile and the target"

Table 4

Summary of specific data in Figs. 5-13 "

Fig 15

Estimation error of ${{{a}}_{{{ty}}}}$ and the theoretical boundary "

Fig 16

Estimation error of ${{{a}}_{{{tz}}}}$ and the theoretical boundary "

Table 5

Different error cases and compared methods"

Fig 17

Simulation of ${{R}}$ with estimation errors "

Fig 18

Simulation of $\dot {{R}}$ with estimation errors "

Fig 19

Simulation of ${\dot {{q}}_{{p}}}$ with estimation errors "

Fig 20

Simulation of ${\dot {{q}}_{{y}}}$ with estimation errors "

Fig 21

Simulation of ${{{a}}_{{{ty}}}}$ with estimation errors "

Fig 22

Simulation of ${{{a}}_{{{tz}}}}$ with estimation errors "

Table 6

Summary of specific data in Figs. 17-22 "

Table 7

Different cases with measurements with the CA extended model"

Fig 23

Simulation of ${{R}}$ with the CA extended model "

Fig 24

Simulation of $\dot {{R}}$ with the CA extended model "

Fig 25

Simulation of ${\dot {{q}}_{{p}}}$ with the CA extended model "

Fig 26

Simulation of ${\dot {{q}}_{{y}}}$ with the CA extended model "

Fig 27

Simulation of ${{{a}}_{{{ty}}}}$ with the CA extended model "

Fig 28

Simulation of ${{{a}}_{{{tz}}}}$ with the CA extended model "

Table 8

Summary of specific data in Figs. 23-28 "

Table 9

Different cases with measurements under singer model"

Fig 29

Simulation of ${{R}}$ with the singer model "

Fig 30

Simulation of $\dot {{R}}$ with the singer model "

Fig 31

Simulation of ${\dot {{q}}_{{p}}}$ with the singer model "

Fig 32

Simulation of ${\dot {{q_y}}}$ with the singer model "

Fig 33

Simulation of ${{{a}}_{{{ty}}}}$ with the singer model "

Fig 34

Simulation of ${{{a}}_{{{tz}}}}$ with the singer model "

Table 10

Summary of specific data in Figs. 29-34 "