Analysis and Performance Evaluation of BDS-3 Code Ranging Accuracy Based on Raw IF Data from a Zero-Baseline Experiment  
[PERSON]  
1 School of Space Science and Physics, Shandong University, Weihai 264209, China; [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (J.L. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (B.N. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (S.C.); [EMAIL_ADDRESS] (Y.Q.) [PERSON]  
1 School of Space Science and Physics, Shandong University, Weihai 264209, China; [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (B.N. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (S.C.); [EMAIL_ADDRESS] (Y.Q.) [PERSON]  
1 School of Space Science and Physics, Shandong University, Weihai 264209, China; [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (B.N. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (S.C.); [EMAIL_ADDRESS] (Y.Q.) [PERSON]  
1 School of Space Science and Physics, Shandong University, Weihai 264209, China; [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (B.N. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (S.C.); [EMAIL_ADDRESS] (Y.Q.) [PERSON]  
1 School of Space Science and Physics, Shandong University, Weihai 264209, China; [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (B.N. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (S.C.); [EMAIL_ADDRESS] (Y.Q.) [PERSON]  
1 School of Space Science and Physics, Shandong University, Weihai 264209, China; [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (B.N. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (S.C.); [EMAIL_ADDRESS] (Y.Q.) [PERSON]  
1 School of Space Science and Physics, Shandong University, Weihai 264209, China; [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (B.N. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (S.C.); [EMAIL_ADDRESS] (Y.Q.) [PERSON]  
1 School of Space Science and Physics, Shandong University, Weihai 264209, China; [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (B.N. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (S.C.); [EMAIL_ADDRESS] (Y.Q.) [PERSON]  
1 School of Space Science and Physics, Shandong University, Weihai 264209, China; [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (B.N. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (S.C.); [EMAIL_ADDRESS] (S.C.); [EMAIL_ADDRESS] (Y.Q.) Yunqiao He  
1 School of Space Science and Physics, Shandong University, Weihai 264209, China; [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (B.N. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (S.C.); [EMAIL_ADDRESS] (S.C.); [EMAIL_ADDRESS] (Y.Q.) [PERSON]  
1 School of Space Science and Physics, Shandong University, Weihai 264209, China; [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (B.N. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (S.C.); [EMAIL_ADDRESS] (S.C.); [EMAIL_ADDRESS] (Y.Q.) [PERSON] School of Space Science and Physics, Shandong University, Weihai 264209, China; [EMAIL_ADDRESS] (Y.L. orbit satellites (IGSO), and three geostationary orbit satellites (GEO) [1; 2; 3]. It can provide global users with PNT services, short message communication, and other services, transmitting five public service signals centered at B1I (1561.098 MHz), B3I (1268.52 MHz), B1C (1575.42 MHz), B2a (1176.45 MHz), and B2b (1207.14 MHz) [5; 6; 7; 8; 9]. Compared with BDS-2, BDS-3 has significantly improved system coverage, spatial signal accuracy, spatial signal continuity and availability [10; 11; 12]. The continuity and availability of BDS-3 space signal are about 99.99% and 99.78%, respectively [13]. The signal transmitted at each frequency point is composed of ranging code and navigation data modulated on the carrier signal. Users can compute the propagation time of the signal at each time to calculate their position.