7B-5-4 
Table 1 Comparison of searching time 
Search range 
Number of 
combinations 
Search time 
No 
decomposition 
Cholesky 
decomposition 
Optimized Cholesky 
decomposition 
±5 
1771561 
147.5 seconds 
60.97seconds 
0.035 seconds 
±10 
85766121 
1.98 hours 
0.82 hours 
0.18 seconds 
±20 
4750104241 
4.58 days 
1.89 days 
0.54 seconds 
±50 
1.0615el2 
1023days 
422 days 
1.42 seconds 
Table 2 OTF results for each flightstrip 
Flightstrip 
Start time 
End time 
OTF start time 
Epochs 
Ratio 
Sat. num 
1 
174235 
174711 
174200 
29 
2.3 
8 
2 
175233 
175602 
175200 
10 
2.24 
8 
3 
176082 
186448 
176000 
10 
3.5 
9 
4 
176975 
177338 
176950 
29 
4.9 
7 
5 
177847 
178209 
178820 
17 
3.8 
8 
6 
178714 
179092 
178700 
10 
2.49 
8 
7 
179621 
179990 
179600 
10 
2.1 
8 
8 
180512 
180887 
180500 
10 
3.42 
6 
9 
181429 
181791 
181400 
10 
2.47 
6 
10 
182320 
182730 
182300 
23 
3.10 
7 
11 
183174 
183529 
182150 
72 
2.15 
7 
12 
184068 
184443 
184000 
14 
3.11 
7 
13 
185020 
185413 
185000 
21 
3.80 
6 
14 
185975 
186351 
185900 
20 
2.43 
6 
15 
186883 
187230 
186900 
33 
5.32 
5 
16 
187790 
188122 
187750 
12 
2.49 
5 
17 
188686 i 189152 
188650 
11 
4.43 
5 
Table 3 Ambiguity resolution of BASl-airborne GPS and BAS2-airborne GPS 
by OTF and static initialization 
SV No. 
BASI- airborne GPS 
BAS2- airborne GPS 
Reference SV: 22 
Static 
initialization 
OTF 
Static 
initialization 
OTF 
o 
-1724622.012 
-1724622 
-515782.981 
-515783 
14 
-280252.965 
-280253 
242004.037 
242004 
18 
-1715510.033 
-1715510 
-1865267.054 
-1865267 
25 
690723.102 
690723 
159910.047 
159910 
28 
1399001.026 
1399001 
-426861.972 
-426862 
29 
-826723.977 
-826724 
-222043.028 
-222043 
Figure 1 3D coordinate difference between the baseline resolved 
by OTF method and the statically solved baseline