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Thesis - Leigh Moody.pdf - Bad Request - Cranfield University

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Appendix I / Utilities / Covariance<br />

_ _<br />

∂ Ψ<br />

∂ Q<br />

B<br />

A<br />

B<br />

A<br />

: =<br />

22.13.3 Range Uncertainty<br />

B<br />

2 ⋅ TA<br />

( 1 )<br />

B 2 B<br />

( T ( 1 ) ) + T ( 4 )<br />

A<br />

2<br />

B<br />

( ) q<br />

⎜ 1 T ( )<br />

⎜ ⎟ A 1<br />

A<br />

22.13-5<br />

⎛ ⎛ q<br />

⎜ ⎜<br />

⎜ ⎜ q<br />

⋅ ⎜ ⎜<br />

⎜ ⎜<br />

⎝ ⎝ q<br />

3<br />

2<br />

0<br />

⎞<br />

⎟<br />

⎟<br />

⎟ +<br />

⎟<br />

⎠<br />

CV_PX_BAB returns the range uncertainty of point (b),<br />

E<br />

⎛<br />

⎜<br />

⎝<br />

∂ P<br />

∂ P<br />

⎞<br />

⎟<br />

⎠<br />

T<br />

2<br />

⎛ 0 ⎞ ⎞<br />

⎜ ⎟ ⎟<br />

⎜ 0 ⎟ ⎟<br />

⋅ ⎜ q ⎟ ⎟<br />

2 ⎜ ⎟ ⎟<br />

⎜ ⎟ ⎟<br />

⎝ q3<br />

⎠ ⎠<br />

Equation 22.13-11<br />

( ) ( ) ⎟ 2 ⎜ a,<br />

b ⎟ ⋅<br />

⎛ A A T<br />

=<br />

δ ⋅ δ<br />

⎞<br />

⋅ ⎜ a,<br />

b<br />

P :<br />

E P P<br />

⎛<br />

⎜<br />

⎝<br />

∂ P<br />

∂ P<br />

δ a,<br />

b<br />

A ⎜ b b ⎟<br />

A<br />

⎝<br />

⎠<br />

b<br />

b<br />

a,<br />

b<br />

a,<br />

b<br />

A<br />

b<br />

P ⋅ ∂ P ∂ P : =<br />

The target and missile range uncertainties,<br />

22.13.4 Range Rate Uncertainty<br />

( δ P ) : = CV_PX_BAB ( X , C , 9 )<br />

E o,<br />

t<br />

SO TL SO TLL<br />

P<br />

A<br />

b<br />

Equation 22.13-12<br />

Equation 22.13-13<br />

Equation 22.13-14<br />

( δ P ) : = CV_PX_BAB ( X , C , 9 )<br />

E o,<br />

m<br />

SO ML SO MLL<br />

CV_VX_BAB returns the range rate uncertainty of point (b),<br />

E<br />

Equation 22.13-15<br />

( ) ( ( ) ) ⎟ ⎛ XB<br />

T<br />

⎞<br />

⎛ XB<br />

XB 2 ∂ P&<br />

∂ ⎞<br />

δ = ⎜ b<br />

T P&<br />

⎟ ⋅ δ ⋅ δ ⋅ ⎜ b<br />

P&<br />

:<br />

E X X<br />

P<br />

a,<br />

b<br />

b<br />

∂ P&<br />

⋅<br />

∂ X<br />

XB<br />

b<br />

PV<br />

: =<br />

⎜<br />

⎝<br />

⎛<br />

⎜<br />

⎜<br />

⎜<br />

⎝<br />

∂ X<br />

⎛<br />

⎜<br />

⎜<br />

⎝<br />

PV<br />

P&<br />

A<br />

b<br />

⎟<br />

⎠<br />

⎛<br />

⎜ ⎛ P<br />

⋅<br />

⎜<br />

1 − ⎜<br />

P<br />

⎝ ⎝<br />

A<br />

b<br />

PV<br />

a,<br />

b<br />

⎞<br />

⎟<br />

⎠<br />

2<br />

⎞ ⎞<br />

⎟ ⎟<br />

⎟ ⎟<br />

⎠ ⎠<br />

T<br />

PV<br />

,<br />

⎜<br />

⎝<br />

∂ X<br />

PV<br />

Equation 22.13-16<br />

⎛<br />

⎜<br />

P<br />

⎜<br />

⎝ P<br />

A<br />

b<br />

a,<br />

b<br />

⎞<br />

⎟<br />

⎠<br />

T<br />

⎞<br />

⎟<br />

⎟<br />

⎟<br />

⎠<br />

⎞<br />

⎠<br />

T<br />

Equation 22.13-17<br />

The target and missile range rate uncertainty with respect to the Alignment<br />

frame,<br />

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