Tech Base

Learn the six-position parameter correction method for MEMS IMU calibration. Achieve 0.06% scale factor accuracy and suppress temperature drift errors by up to 98%.

Online spatial-temporal calibration between monocular camera and IMU improves VIO accuracy by ~15%. Covers pre-integration, initialization, time delay modeling, and joint optimization.

This article defines drift rate, describes systematic vs. random drift, describes the units of measurement such as meru, and compares the performance of the types of gyro (ESG, DTG, floated) and different applications (from aircrafts to submarines).

This article describes the gyroscope gimbal motion by introducing the tip trajectory method on a spherical surface and its simplified and practical representation on a phase plane for the dynamical analysis.

This is article is the PART2 of Reference Frames in Gyroscope Motion about the Body, Navigation & Implementation.

Study the basic reference systems that are developed for inertial navigation. Part 1 of this series goes through definitions & relationships of Inertial, Earth Geographic and Horizon coordinate systems in the case of Gyros dynamics.

This article tells the definition and formula of angular momentum and the angular momentum of the gyroscope rotor.

Mass is a measure of the inertia of an object when it moves. The moment of inertia is a measure of the inertia of...

This article provides a detailed analysis of the definition, formation mechanism and calculation formula of Coriolis Acceleration.

A complete guide to Three-axis Rate Turntables: Learn about vertical vs. horizontal structures, the principles of control, conductive slip rings and some important technical specifications such as rate accuracy and stability for testing inertial navigation structures