Research Article

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

Table 3

Pearson correlation coefficient 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/s2)Ideal attenuation coefficient−1

Standard deviation of prediction error (m)1−0.06−0.011−0.001<0.001
Standard deviation of observation error (m)−0.061−0.01−0.0010.002
Forecast duration (min)−0.011−0.0110−0.524
Acceleration (m/s2)−0.001−0.01010.1
Ideal attenuation coefficient−100.002−0.5240.11