Abstract
A guided missile directed toward flight direction of target must be navigated so that it would not miss the target. Many navigation methods have been published. In this paper, Proportional Navigation (PN) Method based on Line of Sight guidance feature will be evaluated by simulation only at target moving in one way parallel on Y axis. Evaluation was conducted especially regarding to the ability to handle against external disturbance during its mission. PN Method was chosen because it can be implemented in relatively simple way by using infrared (IR) sensor on board for sensing the target position and do not require transponder frequency to communicate with the ground station. To evaluate the method, simulation model was developed firstly by using MATLAB. In the simulation test, 9949 N external disturbance (-9000 N on X-axis, -3000 N on Y-axis, and -3000 N on Z-axis) represent a wind whose value is 528 m/s has been added in time range of 10 until 18 second and 10 until 24 second. It is obvious from the results that Proportional Navigation method has been able to point the missile to the target at a certain time.
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