摘要
为在雷达训练模拟器中模拟出逼真的地物回波,首先分析了地物对低空目标的遮挡影响,建立了地物回波模型;然后给出地物回波中小目标信杂比计算模型和改善因子计算方法,提出目标检测效果判决方法;最后进行了低空目标检测的仿真.仿真结果表明,采用本文方法模拟的地物杂波符合雷达实际工作特征,很大程度上提高了模拟回波的逼真度和合理度.
In order to simulate realistic ground echoes in radar training simulators,firstly the influence of ground object occlusion on low altitude target is analyzed and the ground object echo model is established.Then,the calculation model for small target signal-to-clutter ratio in ground object echoes and the calculation method of improvement factor are offered,with the judging method of target detection effect put forward.Finally,the simulation of low altitude target detection is carried out.The simulation results show that the ground clutter simulated by the proposed method in this paper accords with the practical working characteristics of radar,and that the fidelity and reasonableness of the simulated echoes are greatly improved.
作者
胡辉
赵磊
包南疆
吴立刚
HU Hui;ZHAO Lei;BAO Nanjiang;WU Ligang(Naval Non-commissioned Officer School,Bengbu 233032,China;No.92677 Unit,the PLA,Dalian 116600,China)
出处
《空天预警研究学报》
CSCD
2023年第6期428-432,共5页
JOURNAL OF AIR & SPACE EARLY WARNING RESEARCH
关键词
地物回波
雷达训练模拟器
地物遮挡
回波展宽
杂波模型
ground echoes
radar simulator
ground object occlusion
echo broadening
clutter model
