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

Table 1

Broadcast ephemeris camera parameters description table.

Parameters	Description	Unit
	Rate of change in orbital inclination	rad/s
	Rate of change in the equatorial diameter of the ascending intersection	rad/s
	Correction value of the angular velocity at the level of proximity	rad/s
,	Amplitudes corrected by the sine and cosine summation terms of the latitude amplitude angles	rad
,	Amplitude of the correction of the sine and cosine summation terms of the orbital inclination angle	rad
,	Amplitude of correction of the sine and cosine summation terms of the orbital radius	m