Non-Linear Orbital Path Tracking Of Ornithopters

Abstract

Ornithopters are flying aerial vehicles capable of flying at a low altitude and low speed.These aerial vehicles offers a very low Radar cross section and often escape detection by tracking systems.These aerial vehicles trace a rabbit path which consists of frequent and abrupt changes. Non linear tracking of ornithopters is important from army point of view.This algorithm can be used to track the ornithopters being used by the adversaries and note down or evaluate the pattern.The processing of this information will yield a meaningful data.These tracking system once developed in the hardware can be incorporated in the fire control system and can be used to bring down the enemy surveillance aerial vehicles flying at a low altitude and a low speed.The radar cross section offered by these ornithopters is very low of the order of few square meters.Hence non linear tracking is modeled using an Extended Kalman filter in this work in which a vehicle is made to follow a circular trajectory and plotted for true, observed and estimated positions.