Havacılık ve Uzay Teknolojileri Dergisi (Jul 2008)
HAVA TRAFİK KONTROLU BENZETİMİNDE ETKİLEŞİMLİ ÇOKLU MODEL (INTERACTING MULTIPLE MODEL-IMM) KESTİRİM PERFORMANSI VE KALMAN FİLTRESİ İLE KARŞILAŞTIRILMASI
Abstract
It is known that adaptive estimation models are used in different time intervals of the motion projection of maneuvering targets. In this study Interacting Multiple Model (IMM) estimation technique is implemented and its performance is tested on an air traffic control track simulation. IMM algorithm is a second degree Bayesian estimation technique and an adaptive estimation model. Air traffic control entity motion is initially simulated with a constant speed of 125 m/s motion for 100 seconds then turned to the left with a 30 º with a 3 m/s angular speed for 30 seconds and finally finished its motion with a constant speed of 125 m/s for 70 seconds. Then a sensor is placed on a specific coordinate to measure the trajectory motion of the air traffic entity. For the measurements and process simulated Gaussian noise is added during the calculations. The simulated air traffic control entity’s motion trajectory and the measurements of the sensor are initially modelled with Interacting Multiple Model-Linear (IMM-L) technique, then Interacting Multiple Model-Coordinated Turn (IMM-CT) and finally they are modelled with a Kalman filter. According to the results the best estimate matches of the motion trajectory of the air traffic control entity is generated by IMM-CT, then Kalman Filter and finally IMM-L algorithms subsequently.
