Research On Simulation Technology Of Multi-channel Radar Fuze For Ultra-low Altitude Target Detectio

The multi-channel radar fuze can detect the target in the background of ground and sea clutter,output the target existence signal and target azimuth information,and cooperate with the directional warhead to complete the directional damage to the target.Taking the multichannel radar fuze as the research object,this paper studies the scene modeling,fuze detection simulation,echo signal calculation and detection performance evaluation of the ground and sea clutter interference that the radar fuze may be subjected to when working at ultra-low altitude,and develops the multi-channel radar fuze detection simulation software for ultra-low altitude targets.The main work is as follows:A simulation model of the ultra-low altitude fuze detection environment is constructed,including a ground model based on LOD technology,a sea surface model based on Gerstner wave theory and Douglas sea state,and a sky dome model based on the sky box principle,to achieve visual modeling of ultra-low-altitude scenes.The ground and sea clutter simulation technology of ultra-low altitude multi-channel fuze is studied.Based on the conformal circular array antenna beam and the multi-channel fuze detection field model,an improved method for determining the visible facets of the fuze to the ground sea background is proposed,and the ground and sea echo characteristics under the influence of relevant parameters are compared and analyzed.The design of the ultra-low altitude multi-channel radar fuze detection simulation system is completed,and the panel existence judgment,RCS simulation calculation,target echo signal simulation calculation and detection performance evaluation are realized.The evaluation technology of the fuze’s detection performance evaluation is researched,and the evaluation software of fuze detection performance evaluation of ultra-low altitude multi-channel radar is developed.Based on the detection simulation results of the ultra-lowaltitude multi-channel fuze,the detection performance of the fuze are simulated and evaluated.