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

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Appendix I / Utilities / WGS 84, Target and Missile Data<br />

_ _<br />

These modules also provide a flag indicating which missile flight phase is<br />

currently in effect.<br />

22.3.5 Missile and Target Relative Inertial Kinematics<br />

The following modules provide the relative missile and target data listed in<br />

Table 22-7. This data is provided with respect to the coincident launcher<br />

and ground based tracker located at point (o).<br />

• TM_GEOMETRY (reference state)<br />

• FF_TM_GEOMETRY (observer state)<br />

22.3.6 Relative Missile and Target Kinematics<br />

The following modules provide the relative missile to target sight-line<br />

dynamic data listed in Table 22-8.<br />

• ST_GEOMETRY (reference state)<br />

• FF_ST_GEOMETRY (observer state)<br />

These provide missile time-to-go depending on LOS range and range rate,<br />

P&<br />

m,<br />

t<br />

> V<br />

S<br />

⇒<br />

t<br />

GO<br />

22.3-3<br />

: =<br />

P& m , t ≤ VS<br />

⇒ t GO<br />

P<br />

: =<br />

XS<br />

m,<br />

t<br />

⋅ P&<br />

0<br />

−1<br />

m,<br />

t<br />

Equation 22.3-2<br />

Equation 22.3-3<br />

(VS) is the threshold for stable missile flight required by the aerodynamic<br />

model and has a default value of 80 m/s.

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