When the misalignment angle is a large valhalla axys angle in the strapdown inertial navigation system (SINS), it is necessary to establish a nonlinear error model to estimate the error.Hence, an improved initial alignment method based on adaptive robust CKF algorithm is proposed in this paper.Firstly, based on the analysis results, SINS/GPS nonlin
Attitude measurement is an essential technology in projectile trajectory correction.Magnetometers have been used for projectile attitude measurement systems as they are small in size, lightweight, and low cost.However, magnetometers are seriously disturbed by the artillery magnetic field during launch.Moreover, the error parameters of the magnetome
Objectives: The relationship between left atrial (LA) size and atrial fibrillation (AF) is well-established.However, the arrethe bush balm specifics of LA regional remodeling and its connection to left atrial tachycardia (LA-AT) post-ablation in patients with non-paroxysmal AF are less understood.This study aims to explore how LA dimensions are rel
Conventional hemodialysis (HD) (a 4 arrethe bush balm h session three times a week) is not appropriate for everyone and is excessive in the presence of substantial residual kidney function (RKF).However, it can be safely replaced by a softer incremental approach guided by the urea kinetic model (UKM), starting with one or two sessions a week.Observ