A TERRESTRIAL STRAPDOWN NAVIGATION ALGORITHM

In this paper terrestrial strapdown navigation computation is investigated. A case study of a navigation computation in local level navigation frame is presented. For this case, the basic equations of the navigation algorithm are derived. A simulation scheme for the evaluation of the algorithm is proposed. The evaluation is based on two criteria. One criterion is associated with the position error. The other is associated with attitude error of the vehicle. The results of simulation show a quite reasonable performance of the navigation algorithm under investigation.