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

Table 6

Average daily RMS values () of position residuals for four stations and three multipath error modeling strategies and corresponding improvements.

Stations	Directions
		None	Two-step	Imp. (%)	One-step	Imp. (%)	None	Two-step	Imp. (%)	One-step	Imp. (%)
BJF1	E	−0.054	−0.040	25.9	−0.039	27.8	−0.056	−0.048	14.3	−0.041	26.8
	N	−0.040	−0.023	42.5	−0.016	60.0	−0.043	−0.032	25.6	−0.023	46.5
	U	−0.174	−0.157	9.8	−0.094	45.9	−0.156	−0.127	18.6	−0.092	41.0
KNDY	E	−0.055	−0.055	0.0	−0.043	21.8	−0.047	−0.043	8.5	−0.038	19.1
	N	−0.040	−0.016	60.0	−0.013	67.5	−0.040	−0.025	37.5	−0.021	47.5
	U	−0.204	−0.093	54.4	−0.043	78.9	−0.161	−0.149	7.5	−0.103	36.0
WUH1	E	−0.043	−0.043	0.0	−0.037	13.9	−0.039	−0.026	33.3	−0.026	33.3
	N	−0.035	−0.016	54.3	−0.013	62.9	−0.039	−0.022	43.6	−0.017	56.4
	U	−0.183	−0.100	45.4	−0.046	74.9	−0.154	−0.131	14.9	−0.092	40.3
XIA1	E	−0.052	−0.014	73.1	−0.013	75.0	−0.051	−0.050	1.9	−0.034	33.3
	N	−0.054	−0.015	72.2	−0.013	75.9	−0.033	−0.028	15.2	−0.016	51.5
	U	−0.108	−0.058	46.3	−0.028	74.1	−0.142	−0.134	5.6	−0.108	23.9