RT - Journal Article T1 - Hardware in the Loop Simulator Implementation by Signal Injection Method for Control System of a Special Missile JF - joc-isice YR - 2010 JO - joc-isice VO - 4 IS - 1 UR - http://joc.kntu.ac.ir/article-1-147-en.html SP - 52 EP - 60 K1 - Signal Injection K1 - Autopliot K1 - hardware in the loop K1 - Six degree of freedom simulation K1 - Validation K1 - Command factor AB - The hardware in the loop simulation is the main method for evaluation of the missile guidance and control system befor flight test. Implementation of this tester in IR homing missile requires accurate and expensive instruments for generate IR scene and rotate the seeker in three dimensions. Signal injection method obviates these equipments by simulation and generation the output signal of IR detector. This paper explains implementation hardware in the loop of autopilot circuits of an IR homing missile. First, evaluation and validation of six degree of freedom simulation was done by using the practical test results. It was done by simulating the laboratory testers and analyzing the command factor. By using this method the gain of missile guidance and control loops in simulation adjusted by real values from laboratory tests. Implemnting the autopilot circuits in the simulation and realization the signal injection method was done by making real time simulation and designing the suitable interface circuit. The compatibility of the results from hardware in the loop and software simulation shows precision of the implementation. Small variance between results has analyzed by the effect of linear signal phase. LA eng UL http://joc.kntu.ac.ir/article-1-147-en.html M3 ER -