The error introduced by the DF accuracy of three direction Finding equipments used on board two surface units providing bearing measurements is used to evaluate the performance of the ESM systems through the Extended Kalman Filter equations, and to appreciate the result in the estimation process by evaluating how the improvement of the tracking process is reduced as the error introduced by the DF accuracy of the ESM systems is increased. The process is conducted at three different scenarios involving a change in course of 0, 45 and 90 degrees, and it can be seen how the maneuver detection algorithm stop working when the DF accuracy reaches 4.6 deg. for the second scenario and 9.6 deg. for the scenario Nr 3.

Approved for public release; distribution is unlimited.

http://archive.org/details/useofnextendedka1094534932

Lieutenant, Valenzuelan Navy