Tenth Resolution 609 (Rev. WRC-07) Consultation Meeting
Los Angeles, 10-12 September 2013
Document
10 July 2013
English only
FRANCE1
Galileo epfd calculations for
Tenth Resolution 609 (Rev. WRC-07) Consultation Meeting
This contribution presents the results of epfd calculations performed by Galileo in preparation to the
Tenth Resolution 609 Consultation Meeting (Los Angeles, 10-12 September 2013).
The document includes two sections :
- Section I is the Galileo calculation of the aggregate epfd, according to item 11.d) of the
Resolution 609 Terms of Reference, based on input data provided by each
operator/administration regarding the epfd of its own system,
- section II is a comparison, for some systems having provided new or updated data (namely for
India and Japan GSO networks), of the single system epfd obtained by the corresponding
operator/administration and by Galileo.
Main conclusions are the following:
- Several systems have updated their data compared to previous Consultation Meeting, namely
QZSS, IRNSS and GAGAN. Furthermore, MTSAT satellites are no longer to take into
account.
- Despite these changes, the maximum aggregate epfd level assessed by Galileo, based on the
single system epfd matrices provided by each administration for its own system, remains
identical to the one obtained at previous meeting, i.e.:
o The maximum aggregate epfd in the band 1164-1215 MHz is –121.93
dB(W/m2·MHz), i.e. 0.43 dB below the Resolution 609 limit of –121.5
dB(W/m2·MHz), when considering all systems and networks which have provided
their data within the deadline agreed for the meeting.
o With the addition of ARABSAT-5C-20E, NIGCOMSAT-1G/-1R, and GLONASS-M
CDMA signal, the maximum aggregate epfd in the band 1164-1215 MHz is –121.76
dB(W/m2·MHz), i.e. 0.26 dB below the Resolution 609 limit of –121.5
dB(W/m2·MHz).
- For GSO networks which characteristics have been updated, the single system epfd matrices
have been calculated using the Galileo tool. Comparison with the results obtained by
corresponding administrations shows an acceptable matching (maximum 0.01 dB difference).
1
France acts on behalf of all Galileo Administrations (GLS Administrations).
I Maximum aggregate epfd based on input data to the Tenth Consultation Meeting
I-1 Systems taken into account in the aggregate epfd calculation
Table 1 below contains the complete list of systems that have provided an input to the Consultation
Meeting process. It also indicates whether corresponding data are confirmed from previous
Consultation Meeting, or modified, or new. And it outlines that no input has been received regarding
the ARABSAT-5C-20E and the NIGCOMSAT-1G/-1R networks.
N°
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
RNSS system name
MSATNAV-2
NAVSTAR GPS
GLONASS-M FDMA
COMPASS-M/MG/-H/-MEO
COMPASS-MEO new signal
COMPASS-IGSO new signal
N-SAT-HEO2/QZSS-1
QZSS-GS4
QZSS-GS3
LM-RPS-107.3W
LM-RPS-133W
INMARSAT-4 25E/-XL1/-4° 25E
INMARSAT-4 143.5E/-4A 143.5E
INMARSAT-4 98W/-4A 98W
COMPASS-58.75E
COMPASS-80E
COMPASS-110.5E
COMPASS-140E
COMPASS-160E
COMPASS-58.75E new signal
COMPASS-80E new signal
COMPASS-110.5E new signal
COMPASS-140E new signal
COMPASS-160E new signal
INSAT-NAV(32.5) (IRNSS)
INSAT-NAV(83) (IRNSS)
INSAT-NAV(131.5) (IRNSS)
INSAT-NAV(55) (GAGAN)
INSAT-NAV(83) (GAGAN)
INSAT-NAV-GS/INSAT-NAV-A-GS2
MTSAT-C-140E
MTSAT-C-145E
LUX-G6-2-E
LUX-G7-9-E2
GLONASS-M CDMA
ARABSAT-5C-20E
NIGCOMSAT-1G/-1R
Administration Orbital Position
F/GLS
USA
RUS
CHN
CHN
CHN
J
J
J
USA
USA
G
G
G
CHN
CHN
CHN
CHN
CHN
CHN
CHN
CHN
CHN
CHN
IND
IND
IND
IND
IND
IND
J
J
LUX
LUX
RUS
ARS/ARB
NIG
NGSO
NGSO
NGSO
NGSO
NGSO
NGSO
NGSO
127
123
-107.3
-133
25
143.5
-98
58.75
80
110.5
140
160
58.75
80
110.5
140
160
32.5
83
131.5
55
83
NGSO
140
145
5
31.5E
NGSO
20
42.5
Note
Confirmed
Confirmed
Confirmed
Confirmed
Confirmed
Confirmed
Updated
Updated
New data
Confirmed
Confirmed
Confirmed
Confirmed
Confirmed
Confirmed
Confirmed
Confirmed
Confirmed
Confirmed
Confirmed
Confirmed
Confirmed
Confirmed
Confirmed
Updated
Updated
Updated
Updated
New data
Updated
Suspended
Suspended
Confirmed
Confirmed
Confirmed test mode
No input
No input
Table 1 - RNSS systems considered at the 10th Consultation Meeting
It is therefore proposed to perform two sets of calculation for the aggregate epfd of all systems :
- set #1 will include all systems and networks listed in Table 1, which have provided their data
within the deadline agreed for the meeting. This corresponds to number 1 to number 32 in
Table 1, noting that MTSAT networks are suspended.
- set #2 corresponds to a total of 35 systems and networks , comprising those in set #1, with the
addition of:
o ARABSAT-5C-20E and NIGCOMSAT-1G/-1R networks which have neither
confirmed nor updated their data,
o GLONASS-M CDMA signal, confirmed by Russian Federation in test mode.
I-2 Results of the aggregate epfd calculations
Taking into account, for each system listed in Table 1, the 1° epfd matrix as well as the Spectral
Adjustment Factor provided by the corresponding operator or administration, Galileo has carried out
two sets of calculation for the aggregate epfd.
Set #1 : 32 networks (all except GLONASS-M CDMA, ARABSAT-5C-20E and NIGCOMSAT1G/-1R)
Results are given in Table 2 and in Figure 1. The maximum aggregate epfd in the band 1164-1215
MHz is –121.93 dB(W/m2·MHz), i.e. 0.43 dB below the Resolution 609 limit of –121.5
dB(W/m2·MHz).
Center
Frequency
(MHz)
Max RNSS
Agg epfd
(dB(W/m2/MHz))
Center
Frequency
(MHz)
Max RNSS
Agg epfd
(dB(W/m2/MHz))
Center
Frequency
(MHz)
Max RNSS
Agg epfd
(dB(W/m2/MHz))
Center
Frequency
(MHz)
Max RNSS
Agg epfd
(dB(W/m2/MHz))
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
-139.66
-143.08
-152.31
-144.21
-137.19
-132.86
-129.54
-127.15
-126.20
-124.77
-124.15
-123.30
-122.14
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
-123.01
-123.43
-124.29
-124.76
-126.04
-127.73
-130.12
-132.96
-137.41
-144.77
-150.57
-141.48
-137.91
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
-135.70
-134.71
-134.62
-135.44
-136.62
-139.43
-143.20
-147.93
-140.51
-135.75
-131.86
-129.29
-127.27
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
-125.99
-124.92
-124.52
-123.50
-121.93
-123.16
-125.03
-125.56
-126.70
-127.95
-129.83
-132.13
-135.54
Table 2 - Aggregate epfd results for Set #1
Frequency (MHz)
Aggregate epfd (dBW/m²/MHz)
1164
-118.00
1169
1174
1179
1184
1189
1194
1199
1204
1209
1214
Aggregate epfd limit of -121.5 dBW/m²/MHz
-123.00
-128.00
-133.00
-138.00
-143.00
-148.00
-153.00
Figure 1 - Plot of aggregate epfd results for Set #1
Set #2 : All 35 networks
Results are given in Table 3 and in Figure 2. The maximum aggregate epfd in the band 1164-1215
MHz is –121.98 dB(W/m2·MHz), i.e. 0.48 dB below the Resolution 609 limit of –121.5
dB(W/m2·MHz).
Center
Frequency
(MHz)
Max RNSS
Agg epfd
(dB(W/m2/MHz))
Center
Frequency
(MHz)
Max RNSS
Agg epfd
(dB(W/m2/MHz))
Center
Frequency
(MHz)
Max RNSS
Agg epfd
(dB(W/m2/MHz))
Center
Frequency
(MHz)
Max RNSS
Agg epfd
(dB(W/m2/MHz))
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
-139.03
-140.55
-140.83
-139.58
-136.05
-132.65
-129.37
-127.00
-126.00
-124.62
-123.97
-123.15
-122.02
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
-122.86
-123.28
-124.11
-124.61
-125.86
-127.56
-129.91
-132.72
-136.12
-139.52
-141.98
-139.86
-137.46
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
-135.46
-134.52
-134.45
-135.17
-136.13
-138.05
-139.33
-139.06
-136.22
-133.34
-130.46
-128.31
-126.56
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
-125.41
-124.44
-124.09
-123.16
-121.76
-122.96
-124.75
-125.32
-126.46
-127.72
-129.59
-131.87
-135.18
Table 3 - Aggregate epfd results for Set #2
Frequency (MHz)
Aggregate epfd (dBW/m²/MHz)
1164
-118.00
1169
1174
1179
1184
1189
1194
1199
1204
1209
1214
Aggregate epfd limit of -121.5 dBW/m²/MHz
-123.00
-128.00
-133.00
-138.00
-143.00
Figure 2 - Plot of aggregate epfd results for Set #2
II Comparison of the single system epfd results obtained through different software tools
As indicated in Table 1, updated information for QZSS, GAGAN and IRNSS has been provided to
the Forum as input for the Tenth Consultation Meeting.
For all GSO networks of these systems, the single system epfd matrix has been calculated through the
Galileo software tool, and compared with the result provided by corresponding administrations. Table
4 below provides the maximum difference in this cell by cell comparison, and shows an acceptable
matching.
RNSS system name
QZSS-GS4
QZSS-GS3
INSAT-NAV(32.5) (IRNSS)
INSAT-NAV(83) (IRNSS)
INSAT-NAV(131.5) (IRNSS)
INSAT-NAV(55) (GAGAN)
INSAT-NAV(83) (GAGAN)
Administration
J
J
IND
IND
IND
IND
IND
Maximum difference between Galileo
and administration results, for the
single system epfd (in dB)
0.0022 dB
0.0022 dB
0.0117 dB
0.0114 dB
0.0115 dB
0.0114 dB
0.0114 dB
Table 4 – Maximum difference in the epfd calculated for new or updated GSO networks
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