14.02.2013 Views

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

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

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

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Chapter 3 / Sensors / Radar<br />

_ _<br />

2 ⋅<br />

RD<br />

k<br />

W<br />

⋅ l<br />

rT<br />

t<br />

⋅<br />

RD<br />

k<br />

RD<br />

RCS<br />

ξ<br />

G<br />

⎛<br />

⋅<br />

⎜<br />

⎝<br />

: =<br />

The angular glint errors are,<br />

( Ψ , Θ )<br />

RD<br />

G<br />

RD<br />

GLINT ERROR (TARGET LENGTHS)<br />

G<br />

0.1<br />

0.08<br />

0.06<br />

0.04<br />

0.02<br />

0<br />

-0.02<br />

-0.04<br />

-0.06<br />

-0.08<br />

: =<br />

( S , S )<br />

⎛<br />

⎜<br />

⎜<br />

⎝<br />

RD<br />

RD<br />

s<br />

ω<br />

G<br />

RD<br />

tan<br />

W<br />

S<br />

3.8-15<br />

RD<br />

Z<br />

: =<br />

⎞ ⎛ ⎛ ω ⎞ ω<br />

⎟ ⋅ ⎜ ϕ ⎜ N<br />

D1L<br />

⎠ ⎝ ⎝<br />

X<br />

−1<br />

⋅<br />

RD<br />

S<br />

W<br />

RD<br />

+<br />

σ<br />

⎛<br />

⎜ RDξ<br />

G ⋅ l<br />

⎜ XT<br />

⎝ Po,<br />

t<br />

RD<br />

RCS<br />

YT<br />

t<br />

RD G RD G<br />

( 0 , 1 ) , ⎟ , ⎟<br />

2 ⎠ 2 ⎠<br />

S<br />

⎞<br />

⎟<br />

⎠<br />

Y<br />

,<br />

⋅<br />

RD<br />

S<br />

tan<br />

Z<br />

−1<br />

-0.1<br />

0 50 100<br />

20 HZ UPDATES<br />

150 200<br />

Figure 3-42 : Radar Glint Position Error<br />

80<br />

60<br />

40<br />

Figure 3-43 : Radar Glint RCS Variation<br />

⎞<br />

Equation 3.8-55<br />

Equation 3.8-56<br />

⎛<br />

⎜ RDξ<br />

G ⋅ l<br />

⎜ XT<br />

⎝ Po,<br />

t<br />

ZT<br />

t<br />

⎞ ⎞<br />

⎟ ⎟<br />

⎟ ⎟<br />

⎠ ⎠<br />

Equation 3.8-57

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!