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Table 1 Dual-frequency combination of unmitigated pseudorange biases with different user correlation spacings

From: Initial analysis for characterizing and mitigating the pseudorange biases of BeiDou navigation satellite system

BDS PRNB1-frequencyB3-frequencyB1/B3 dual-frequency bias (m): K1··Bias_B1- K3··Bias_B3
Ref. (B1-chip)User (B1-chip)Bias (m)Ref. (B3-chip)User (B3-chip)Bias (m)
1 (GEO-1)0.20.5− 0.40011.00.6− 0.0290− 1.1214
2 (GEO-6)0.20.50.04241.00.60.1167− 0.1020
3 (GEO-3)0.20.5− 0.32771.00.6− 0.0843− 0.8008
4 (GEO-4)0.20.5− 0.12071.00.60.0085− 0.3718
5 (GEO-5)0.20.50.29641.00.60.04890.7775
6 (IGSO-1)0.20.50.10121.00.60.02310.2530
7 (IGSO-2)0.20.5− 0.24891.00.60.0094− 0.7510
8 (IGSO-3)0.20.50.08401.00.60.01900.2103
9 (IGSO-4)0.20.5− 0.01571.00.6− 0.11560.1785
10 (IGSO-5)0.20.5− 0.25971.00.6− 0.0342− 0.6980
11 (MEO-3)0.20.50.37461.00.60.03131.0419
12 (MEO-4)0.20.50.00141.00.60.1412− 0.2703
13 (IGSO-6)0.20.50.04121.00.60.00510.1114
14 (MEO-4)0.20.50.43161.00.6− 0.14001.5426