BDS-3 Broadcast Ephemeris Orbit Correction Model Based on Improved PSO Combined with BP Neural Network

Table 3

C19 broadcast ephemeris orbit error-correction table.

Model	x			y			z
	Mean/m	STD/m	RMS/m	Mean/m	STD/m	RMS/m	Mean/m	STD/m	RMS/m
Real	0.729	0.875	0.869	0.597	0.698	0.693	0.681	0.802	0.796
BPNN	0.467	0.564	0.560	0.390	0.458	0.454	0.447	0.531	0.527
PSO-BPNN	0.220	0.270	0.268	0.176	0.209	0.208	0.198	0.246	0.244
IPSO-BPNN	0.184	0.225	0.223	0.137	0.167	0.166	0.176	0.223	0.222
LSTM	0.749	0.891	0.885	0.528	0.666	0.661	0.475	0.593	0.588