03.06.2013 Views

v5.20 - Classic DocuShare Home - Trimble

v5.20 - Classic DocuShare Home - Trimble

v5.20 - Classic DocuShare Home - Trimble

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Number of SVs<br />

8<br />

7<br />

6<br />

5<br />

4<br />

3<br />

2<br />

1<br />

A<br />

Carrier Phase Data Collection 7<br />

Figure 7.2 shows how the Asset Surveyor software creates distinct<br />

blocks of carrier phase data as the number of satellites changes.<br />

BLOCK BLOCK<br />

5 10 15 20 25 30 35 40 45 50 55<br />

Time in minutes<br />

A = 4 or more satellites – useful carrier phase data<br />

B = lock is lost – unusable carrier phase data<br />

C = lock is regained (4 or more satellites) – useful carrier phase data<br />

D = lock is again lost – unusable carrier phase data<br />

Figure 7.2 Blocks of carrier phase data relative to satellite lock<br />

B<br />

C<br />

TSC1 Asset Surveyor Operation Manual 167<br />

D

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

Saved successfully!

Ooh no, something went wrong!