Improved Mitigation Method for the Multipath Delays of BDS-3 Code Observations with the Aid of a Sparse Modeling Algorithm

Table 5

Average daily RMS values () of position residuals (B1C, B2a) for four stations obtained using three BDS-3 observation multipath delay processing strategies and the corresponding improvements.

Stations	Directions	B1C					B2a
		None	Two-step	Imp. (%)	One-step	Imp. (%)	None	Two-step	Imp. (%)	One-step	Imp. (%)
WUH2	E	−0.058	−0.050	13.8	−0.045	22.4	−0.029	−0.025	13.8	−0.025	13.8
	N	−0.038	−0.034	10.5	0.032	15.8	0.082	0.052	36.6	0.050	39.0
	U	−0.249	−0.228	8.4	−0.222	10.8	−0.271	−0.240	11.4	−0.222	18.1
KNDY	E	−0.050	0.018	64.0	0.009	82.0	−0.115	−0.080	30.4	−0.035	69.6
	N	−0.030	−0.029	3.3	−0.017	43.3	−0.054	−0.052	3.7	−0.050	7.4
	U	−0.105	−0.105	0.0	−0.101	3.8	−0.240	−0.076	68.3	−0.059	75.4
BJF1	E	−0.022	−0.022	0.0	−0.013	40.9	−0.055	−0.028	49.1	−0.027	50.9
	N	−0.028	−0.028	0.0	−0.024	14.3	−0.017	−0.0150	11.8	−0.050	70.6
	U	−0.320	−0.314	1.9	−0.282	11.9	−0.608	−0.592	2.6	−0.073	87.9
XIA1	E	−0.032	−0.029	9.4	−0.028	12.5	−0.017	−0.016	5.9	−0.016	5.9
	N	−0.020	−0.016	20.0	−0.015	25.0	−0.024	−0.023	4.2	−0.022	8.3
	U	−0.075	−0.071	5.3	−0.069	8.0	−0.033	−0.021	36.4	−0.014	57.6