Table 2 Number of different types of pseudorange observations as tracked by the two receivers during the two periods
From: Impact of China’s high speed train window glass on GNSS signals and positioning performance
GNSS | Code of observation type | Band/Frequency (MHz) | Period 1 (GPS time: 3:00:00–9:00:00) | Period 2 (GPS time: 11:00:00–14:00:00) | ||||
|---|---|---|---|---|---|---|---|---|
Receiver 1 (without glass) | Receiver 2 (with glass) | Average rate | Receiver 1 (without glass) | Receiver 2 (without glass) | Average rate | |||
GPS | C1C | L1/1575.420 | 227,452 | 190,193 (84%, 16%) | 120,693 | 119,237 (99%, 1%) | (98%, 2%) | |
C2W | L2/1227.600 | 223,507 | 39,551 (18%, 82%) | (61%, 39%) | 118,581 | 116,101 (98%, 2%) | ||
C2X | L2/1227.600 | 140,596 | 105,785 (75%, 25%) | 65,885 | 64,870 (98%, 2%) | |||
C5X | L5/1176.450 | 105,339 | 87,178 (83%, 17%) | 48,777 | 47,860 (98%, 2%) | |||
GLONASS (k = −7… + 12) | C1C | G1/1602 + k*9/16 | 172,475 | 87,227 (51%, 49%) | 81,157 | 79,352 (98%, 2%) | (98%, 2%) | |
C1P | G1/1602 + k*9/16 | 172,050 | 78,895 (46%, 54%) | (44%, 56%) | 81,008 | 79,332 (98%, 2%) | ||
C2C | G2/1246 + k*7/16 | 159,989 | 69,583 (43%, 57%) | 81,114 | 79,343 (98%, 2%) | |||
C2P | G2/1246 + k*7/16 | 159,316 | 57,263 (36%, 64%) | 81,070 | 79,290 (98%, 2%) | |||
C3X | G3/1202.025 | 1155 | No observation | 607 | 668 (110%, 0%) | |||
Galileo | C1X | E1/1575.420 | 167,055 | 86,563 (52%, 48%) | 75,531 | 75,465 (100%, 0%) | (100%, 0%) | |
C5X | E5a/1176.450 | 167,008 | 85,472 (51%, 49%) | (51%, 49%) | 75,510 | 75,457 (100%, 0%) | ||
C7X | E5b/1207.140 | 167,008 | 84,669 (51%, 49%) | 75,510 | 75,457 (100%, 0%) | |||
C8X | E5 (E5a + E5b)/1191.795 | 167,008 | 86,059 (52%, 48%) | 75,510 | 75,457 (100%, 0%) | |||
BDS | C2I | B1/1561.098 | 316,515 | 153,812 (47%, 53%) | 117,439 | 116,528 (99%, 1%) | (99%, 1%) | |
C7I | B2/1207.140 | 261,148 | 82,080 (31%, 69%) | (41%, 59%) | 116,374 | 115,251 (99%, 1%) | ||