In order to accurately demonstrate the double-layered optical satellite network of LEO/MEO and key technologies,a hardware-in-the-loop model system of asynchronous handover optical satellite network is designed in the scale of 1∶30.The system is composed of software simulation environment and hardware platform.These two parts are connected by the system-in-the-loop(SITL).The software part consists of virtual networks,in which flexible and scalable networking model may be performed.The hardware p...