A Dynamic-Weighted Attenuation Memory Extended Kalman Filter Algorithm and Its Application in the Underwater Positioning

Table 2

Two-tailed significant difference table of canonical correlation analysis of attenuation coefficients.

	Standard deviation of prediction error (m)	Standard deviation of observation error (m)	Forecast duration (min)	Acceleration (m/s^2)	Ideal attenuation coefficient^−1
Standard deviation of prediction error (m)	—	<0.001	0.395	0.932	0.974
Standard deviation of observation error (m)	<0.001	—	0.459	0.941	0.895
Forecast duration (min)	0.395	0.459	—	0.971	<0.001
Acceleration (m/s^2)	0.932	0.941	0.971	—	<0.001
Ideal attenuation coefficient^−1	0.974	0.895	0	0	—