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

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Chapter 3 / Sensors / Radar<br />

_ _<br />

EXPECTED NORMAL DISTRIBUTION VALUES<br />

3<br />

2<br />

1<br />

0<br />

-1<br />

-2<br />

BORDEN AND MUMFORD GLINT ERROR MODEL (4 GHz)<br />

-3<br />

-10 -5 0 5 10<br />

OBSERVED GLINT ERRORS (target lengths)<br />

Figure 3-41 : Glint Error Distribution<br />

The glint bandwidth computed at the detector and output interface rate,<br />

ω<br />

RD<br />

T<br />

T,<br />

TV<br />

ω<br />

RD<br />

G<br />

3.8-14<br />

rT<br />

t<br />

rT<br />

T,<br />

TV<br />

: = 2 ⋅ l ⋅ ω ⋅<br />

RD<br />

k<br />

WN<br />

⎛ TV TV<br />

T P&<br />

o,<br />

t P ⎞<br />

o,<br />

t<br />

: T ⎜ × &<br />

=<br />

⎟<br />

TV ⋅<br />

− ω<br />

⎜ 2<br />

P&<br />

⎟<br />

⎝ o,<br />

t ⎠<br />

k<br />

RCS<br />

: =<br />

1.<br />

128<br />

⋅<br />

RD<br />

RD<br />

f<br />

ω<br />

R<br />

G<br />

T<br />

A, T<br />

Equation 3.8-50<br />

Equation 3.8-51<br />

Equation 3.8-52<br />

The normalised RCS of the target when viewed along the target LOS,<br />

T<br />

( S , S ) : = k ⋅ ϕ ( N ( 0 , 1 ) , 0.<br />

5 ⋅ ω )<br />

RD<br />

X<br />

RD<br />

Y<br />

RD<br />

σ<br />

RCS<br />

RD<br />

RCS<br />

RD<br />

D1L<br />

2<br />

X<br />

: = S +<br />

RD<br />

S<br />

2<br />

Y<br />

RD<br />

G<br />

Equation 3.8-53<br />

Equation 3.8-54<br />

The glint error measured in target size in a plane normal to the radar beam,

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