多重干扰下雷达探测威力范围探讨

Study of Radar Detecting Range in Multiinterference

对雷达在多重干扰下的威力范围做了一些探讨。在分析了干扰机、目标和雷达能量关系的基础上,从单一干扰的干扰方程入手,演算出多干扰下的雷达方程,此方程反映了多重干扰与雷达探测范围的关系,但不直观。通过应用有限元算法,将雷达的波束扫描扇面分成有限个既包含有角度信息又含有距离信息的小单元,使难以求解的隐式超越方程模型化、简单化。然后通过具体实例,仿真出了雷达威力范围图,直观地反映了雷达威力范围与多重干扰之间的关系。此课题的研究对雷达抗干扰问题有一定的实用价值。

The problem of radar detecting range in multi-interference is analyzed in this article. Commencing from the radar equation in singular interference system,we deduce the radar equation in multi-interference systems through analyzing the relation of interference system,target and the radar energy. This equation reflects the relation of radar detecting range and multi-interference systems,but not intuitionally. Using finite element algorithm and dividing scan sector into finite little cell which includes angle and distance information,we simplify the conceal- transcend equation which is difficult to resolve and modeling it. Then aiming at an example, we gain the detecting range plot, which reflects the relation of detecting range and multi-interference systems,through simulation experiment. The study of this problem has some practical value in radar anti-interference.