Evaluating a linear predictive algorithm for bandwidth conservation

A predictive algorithm for bandwidth conservation and enhanced situation aw areness is described and evaluated. En such a system, knowledge of position and intent of the participants involved in the operation must be readily a vailable, and distributed to other units by communications link. This objec tive can be achieved by predicting position tracks of each unit ahead in ti me, based on past kinematic history. If the predicted position is within er ror requirements, then the track estimate is not transmitted over the commu nication links, which results in considerable savings in bandwidth. However , if the prediction error exceeds such tolerance, a linear predictive algor ithm based on linear regression (LR) is used to encode the error. The encod ing sequence, in addition to the current unit location, is transmitted to o ther units by means of communication links. Receiving units, equipped with an identical software package can reconstruct the unit's location from info rmation contained in the encoded sequence and past track history. Analysis of this algorithm is presented and its performance is validated by simulati on.