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Capitolo 6 Il Sistema Satellitare GPS 6.1 – Descrizione del sistema ...

Capitolo 6 Il Sistema Satellitare GPS 6.1 – Descrizione del sistema ...

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SV clock<br />

bias<br />

(s)<br />

SV clock<br />

drift<br />

(s/s)<br />

313<br />

Mario Vultaggio<br />

-3.03029082e-5 0.0002800053 3.18903e-5 -0.0002054530 -7.7147968e-5<br />

1.47792889e-12 -1.64845914e-11 1.2505552e-12 -1.36424205e-12 2.16004991e-12<br />

Toe (s) 151200 151200 151200 153720 155160<br />

Week 1201 1201 1201 1201 1201<br />

Dall’algoritmo di calcolo si ricavano i dati riportati nella tabella 6.B.2<br />

Tabella 6.B.2 <strong>–</strong> Termini numerici calcolati<br />

SVPRN 14 31 11 20 28<br />

Δ t = t − T = t<br />

-1200 -1200 -1200 -1440 -5160<br />

oss oe k<br />

nk = no<br />

+ Δn<br />

0.1411 10 -3 0.1400 10 -3 0.1391 10 -3 0.1291 10 -3 0.1210 10 -3<br />

M k = M o + nk<br />

⋅ tk<br />

1.9788 1.8719 1.8527 -1.9132 -2.0649<br />

E k = M k + esinEk<br />

1.9803 1.8828 1.8540 -1.9149 -2.0710<br />

ν k 1 + Ek<br />

1.9818 1.8937 1.8554 -1.9166 -2.0772<br />

tan<br />

2<br />

=<br />

e<br />

tan<br />

1 − e 2<br />

r = a 1 − e cos E +<br />

k<br />

C<br />

rc<br />

+ C<br />

u<br />

k<br />

+ C<br />

cos<br />

rs<br />

ic<br />

( k )<br />

2(<br />

ω + ν k ) +<br />

2(<br />

ω + ν )<br />

sin<br />

= ω + v<br />

cos<br />

+ Cis<br />

sin2<br />

= i + i&<br />

⋅ t<br />

ik toe<br />

+ C<br />

+ C<br />

ic<br />

is<br />

cos<br />

sin2<br />

k<br />

x = r cosu<br />

k<br />

k<br />

y = r sinu<br />

k<br />

k<br />

+<br />

k<br />

2(<br />

ω + ν k )<br />

( ω + ν )<br />

k<br />

+<br />

k<br />

2(<br />

ω + ν k )<br />

( ω + ν )<br />

λ = Ω + & −<br />

k<br />

o<br />

k<br />

k<br />

k<br />

+<br />

+<br />

( Ω ω e ) tk<br />

2.6579 10 7 2.6654 10 7 2.6571 10 7 2.6578 10 7 2.6649 10 7<br />

1.0200 2.8095 1.4679 -0.1062 -4.5496<br />

0.9712 0.94 0.9146 0.9644 0.9586<br />

-11.6181 -8.5141 -13.7856 -12.6665 -9.5157

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