Final Report of BeJamDetect Project 
3.1.2. Example of post-correlation (GNSS signal acquisition) processing 
In order to assess the interference effect on the operation of a GNSS receiver, the snapshots at 
10:21:43 (the last record at nominal conditions before the RFI event) and at 11:30:03 (the analysed 
RFI event) have been processed with a GNSS signal acquisition code. The results of the signal 
acquisition are presented in Figure 3-22 and Figure 3-23 
3PS . 
26-06-2021 
9:30:21 GPS 
a 
Salileo 
26-06-2021 Da 
39:30:21 GPS . 
FF 
U 
AL 
. 
a) skyplots showing visible GPS and Galileo satellites according to system almanacs 
-unAÄcq: summary of fine acquisition 1ıf all array elements used: 
SPS L1 C/A, PEN 05, CNO 46.8 dB-Hz, ilAnt 5, £D -699.0 Hz, code phase: 
3F38 L1 C/A, PEN 16, CNO 45.9 dB-Hz, ilAnt 1, fD 2255.5 Hz, code phase: 
3PFS L1 C/A, PEN 18, CNO 36.8 dB-Hz, 1Ant 7, £D 904.0 Hz, code phase: 
3F38 L1 C/A, PEN 20, CNO 41.93 dB-Hz, lAnt 5, fD -1569.0 Hz, code phase: 
3EF38 L1 C/A, PEN 23, CNO 44.2 dB-Hz, lAnt 4, fD 23557.9 Hz, code phase 
3PS L1 C/A, PRN 25, CNO 42.2 dB-Hz, iAnt 4, fD -3863.1 Hz, code phase. 
3PS L1 C/A, PEN 26, CNO 44.9 dB-Hz, 1l1Ant 7, £D 236.7 Hz, code phase. 
33 L1 C/A, PEN 27, CNO 46.0 dE-Hz, 1lAnt 2, fD 23396.7 Hz, code phase 
3EF38 L1 C/A, PEN 29, CNO 39.9 dB-Hz, lAnt 5, £fD -2702.0 Hz, code phase 
33 L1 C/A, PEN 31, CNO 46.0 dB-Hz, lAnt 3, fD 23382.8 Hz, code phase: 
3F5 L1 C/A, PEN 33, CNO 45.6 dB-Hz, lAnt 3. fn 398.5 Hz, code phase: 
meanCN0 = 44.5 dB-Hz 
3alıleo E1B, PRN 02, 
3alıleo E1B, PRN 27, 
3alıleo E1B, PRN 30, 
3alıleo E1B, PRN 36, 
MeanCNO0 = 45.8 dB-Hz 
65648 samples 
12358 samples 
776995 samples 
25910 samples 
30038 samples 
17822 samples 
69598 samples 
37085 samples 
396853 samples 
378345 samples 
116 samples 
183950 samples 
110701 samples 
263595 samples 
213586 samples 
crunAÄcq: summary of fine acquisition 1f only arr”y element #7 is used: 
3PS L1 C/A, PEN 05, CNO 38.0 dB-Hz, iAnt 7, £fD -699.0 Hz, code phase: 
33 L1 C/A, PEN 16, CNO 43.4 dE-Hz, l1Ant 7, fD 2255.5 Hz, code phase: 
3FPS3 L1 C/A, PRN 18, CNO 36.8 dB-Hz, 1l1Ant 7, £fD 904.0 Hz, code phase: 
3ES L1 C/A, PRN 20, CNO 38.7 dB-Hz, 1Ant 7, fD -1569.0 Hz, code phase; 
3FS L1 C/A, PEN 23, CNO 39.6 dE-Hz, 1l1Ant 7, £fD 23557.9 Hz, code phase: 
338 L1 C/A, PEN 25, CNO 34.4 dEB-Hz, l1Ant 7, fD -3863.1 Hz, code phase; 
3PS L1 C/A, PEN 26, CNO 44.9 dB-Hz, 1l1Ant * :D 236.7 Hz, code phase: 
3FS8 L1 C/A, PEN 27, CNO 38.9 dE-Hz, l1Ant 7, £D 23396.7 Hz, code phase, 
3F3 L1 C/A, PEN 29, CNO 36.1 dB-Hz, l1Ant 7, £D -2702.0 Hz, code phase: 
3FS L1 C/A, PEN 31, 72NO0 39.0 dE-Hz, 1l1Ant 7, fD -3382.8 Hz, code phase: 
3PS L1 C/A, PRN 33, CNO 43.3 dB-Hz, 1l1Ant 7. £fD 998.6 Hz, code phase: 
TeanCN0 = 40.5 dB-Hz 
3alıleo E1B, PRN 02, 
3alıleoc E1B, PRN 27, 
3alıleo E1B, PRN 30, 
Galıleo E1B, PRN 36, 
MeanCN0O = 46.1 dB-Hz 
69648 samples 
12358 samples 
776992 samples 
25910 samples 
30038 samples 
17822 samples 
69598 samples 
37085 samples 
39685 samples 
378345 samples 
91168 samples 
7HO 46.9 dB-Hz, 1Ant 7, fD -2205.9 Hz, code phase: 
IN0 40.8 dE-Hz, lAnt 7, fD 2775.8 Ez, code phase: 
°HO 47.6 dB-Hz, iAnt 7, £fD 530.6 Hz, code phase: 
7HO0 46.5 dE-Hz, ilAnt 7, £OD -1131.7 Ez, code phase: 
13950 samples 
110701 samples 
263595 samples 
213586 samples 
b) acquired L1/E1 GPS/Galileo satellite signals 
Figure 3-22: GPS L1 signal acquisition at Event S1, on June 26 2021 at 11:30:03 MET 
(09:30:21 of GPS time) 
Fitle: Final Report 
Version: 1.0 
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