Final Report of BeJamDetect Project 
Time evolution of PRNs in PVT and in track 
„| 
ULM 
3 F ; 
a| 
W 
3 
A 
Aa 
N 2 3 
14-Jan 
UTC time 
I 
“ 
A 
ya. 
Il 
wahr 
7 
Jal 
we 
— sed for PVT 
— tracked, GPS L1-C/A | 
tracked. GA =1-BR 
1 * 
‚an 
2022-2023 
Figure 4-42: Number of GPS L1-C/A signals being tracked and used for PVT, January 2023 
Time evolution of mean CNO values 
GPS | 1-C/A 
DAL E1-B 
50 
15 
r 
340} 
) 
35 L 
un 
IE 
37-.1an 
14-Jan 
UTC time 
21-.lan 
28-Jan 
2022-2023 
Figure 4-43: Mean C/NO value for GPS L1-C/A signals, January 2023 
4.1.5. Interference situation in February 2023 
The selected test metrics are presented in Figure 4-44, Figure 4-45 and Figure 4-46. The time 
periods with increased interference activity are marked in Figure 4-44 with red boxes. 
After the fixing the issue with the failed 5V power supply on the 9* of February 2023, the 
systematic bias In the RFI detection metric had dissappeared. Also thanks to the update of the 
FPGA and C++ code of the Demonstrator 2, the use of Galileo E1-B signals became possible. 
Title: Final Report 
Version: 1.0 
age: 64