Analysis of laser energy chain in the hardware-in-the-loop simulation system of semi-active laser guidance

A precise, controllable and repeatable test conditions was provided by the hardware-in-the-loop simulation technology for guiding missile. According to the work characteristics of laser guided weapon simulation system, the impact of laser energy chain on the accuracy of hardware-in-the-loop simulation was analyzed. The major factors that affect the property of the laser energy were analyzed, including the weather factors, the reflection characteristics of targets and the distance between the missile and target, etc. And the theoretical model and calculation method were given. According to the actual power density for the seeker, laser energy chain were studied which provided a theoretical foundation for the hardware- in-the-loop simulation system.