SATRE Satellite Time and Ranging Equipment - TimeTech GmbH
SATRE Satellite Time and Ranging Equipment - TimeTech GmbH
SATRE Satellite Time and Ranging Equipment - TimeTech GmbH
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
<strong>Satellite</strong> <strong>Time</strong> <strong>and</strong> <strong>Ranging</strong> <strong>Equipment</strong> (<strong>SATRE</strong>)<br />
Copyright © 5/2004, <strong>Time</strong>Tech <strong>GmbH</strong><br />
Data subject to change without notice.<br />
Page 6 of 7<br />
Configuration Overview<br />
Item <strong>SATRE</strong><br />
<strong>Ranging</strong><br />
Real time data evaluation (max. 5 seconds delay)<br />
<strong>SATRE</strong><br />
TWSTFT<br />
<strong>SATRE</strong><br />
<strong>Time</strong>Sync<br />
High resolution receive frequency measurement<br />
(0.001 Hz resolution at 1 second)<br />
500 MB integrated harddisk t t<br />
internal time interval counter for RefDelay measurement t<br />
integrated GPS receiver as timesource t t t<br />
I/F to external Cs clocks (Agilent / HP) for steering / slaving ß t<br />
I/F to Comtech <strong>and</strong> SSE G/S transceivers (contact factory for<br />
other available drivers)<br />
t t t<br />
I/F to SATSIM station delay monitor t t t<br />
Second receiver channel t t t<br />
Third receiver channel t t t<br />
( integrated, t selectable as option, ß not possible)<br />
<strong>Ranging</strong> Jitter [cm, oneway]<br />
C/No ChipRate [MChip/s] fi<br />
fl 20 10 5 2,5 1 0,5<br />
40 5,3 10,6 21,2 42,4 106,1 212,1<br />
42 4,2 8,4 16,9 33,7 84,3 168,5<br />
44 3,3 6,7 13,4 26,8 66,9 133,8<br />
46 2,7 5,3 10,6 21,3 53,2 106,3<br />
48 2,1 4,2 8,4 16,9 42,2 84,5<br />
50 1,7 3,4 6,7 13,4 33,5 67,1<br />
60 0,5 1,1 2,1 4,2 10,6 21,2<br />
>=75 0,2 0,4 0,7 1,4 3,6 7,2<br />
Typical ranging performance depending from chiprate <strong>and</strong> C/No. Unit is cm one-way<br />
C/No ChipRate [MChip/s] fi<br />
fl 20 10 5 2,5 1 0,5<br />
40 0,4 0,7 1,4 2,8 7,1 14,1<br />
42 0,3 0,6 1,2 2,3 5,6 11,2<br />
44 0,3 0,5 0,9 1,8 4,5 8,9<br />
46 0,2 0,4 0,8 1,5 3,6 7,1<br />
48 0,15 0,3 0,6 1,2 2,8 5,6<br />
50 0,1 0,2 0,5 0,9 2,3 4,5<br />
60 0,05 0,1 0,2 0,3 0,7 1,4<br />
>=75 0,02 0,03 0,05 0,1 0,3 0,5<br />
Typical measurement jitter depending from<br />
chiprate <strong>and</strong> C/No. Unit is ns roundtrip<br />
TWSTFT Jitter [ns, round trip]<br />
100<br />
Jitter<br />
[ns]<br />
10<br />
1<br />
0,1<br />
0,01<br />
40 45 50 55 60 65 C/No [dHz] 70<br />
<strong>Time</strong>Tech <strong>GmbH</strong> Tel.: ++49 711 67808-0<br />
Curiestrasse 2 Fax: ++49 711 67808-99<br />
D-70563 Stuttgart e-mail: info@<strong>Time</strong>Tech.de<br />
Germany web: www.<strong>Time</strong>Tech.de<br />
20<br />
10<br />
5<br />
2,5<br />
1<br />
0,5