An Initial Alignment Technology of Shearer Inertial Navigation Positioning Based on a Fruit Fly-Optimized Kalman Filter Algorithm

Table 4

Experimental parameters.

Name	Value	Unit
Longitude	117.18	deg
Latitude	39.84	deg
Height	36	m
Average radius	6371393	m
Gravity acceleration	9.7803267714	m/s^2
Experimental time	50	s