Abstract: By analyzing the meeting process of radio fuze and targets,the signal models of radio fuze transceiver were given to simulate the echo waveforms under the case of dynamic scenes constructed by professional 3D modeling software．The simulator can realize the independency of scene modeling,movement control and simulating algorithm,and has good generalization and extensibility．So,different radio fuze systems with any complex scene can be simulated by the implemented echo simulator．The simulator was constructed into an independent echo simulating block,which could be integrated with common used system simulating software．It has an interface to dynamically exchange data with scene model data,and one simulating instance indicats that the simulated echo waveform can reflect the signal changes during the process of radio fuze meeting targets.

Key words: Radio fuze,Echo simulation,Simulator,Time waveform