Some considerations concerning the influence of the inertial sensors errors on the solution of navigation for a bidimensional strap-down inertial navigation system

The paper is a study of the errors induced by the inertial sensors in a bidimensional horizontal navigator. In the first stage, the basic equations of the navigator and the navigation solution are presented. Starting from the navigator mathematical model it is realized an error model for this, a model which considers the errors of the used inertial sensors. It is realized the numerical simulation and the validation of the navigator error model using error models for the accelerometers and gyros sensors implemented in Matlab/Simulink. Also, the navigation errors produced by the different categories of errors which affect the inertial sensors are evaluated.