全数字雷达仿真系统中恒虚警率建模方法探索  

CFAR Modeling Method in Digital Radar Simulation System

作　　者：宁伟 杨泽山 黄云洋 

机构地区：[1]北京蓝天航空科技有限责任公司研发中心,北京100085

出　　处：《兵工自动化》2015年第8期93-96,共4页Ordnance Industry Automation

摘　　要：由于雷达仿真系统设计时常存在参数设计未知和替代模型合理性验证的问题,为解决此类仿真过程存在问题,以恒虚警率(constant false alarm rate,CFAR)建模为例,提出一种全数字雷达仿真系统中恒虚警率建模解决方法。将雷达模型中未知参数的推演及估算和复杂模型的替代模型结合,进行参数分析及设计思路。通过模型边设计边验证的过程,分析并确认设计模型是否能够达到已知的关键性能指标要求,进而反向调整并确定设计的合理性。应用结果证明:这种将模型建立和模型验证同步进行的设计方法,应用于某型号反潜直升机飞行模拟器的全数字多普勒搜索雷达的仿真实现。经验证,该设计方法能具较强实用性及合理性。Because the problems of unknown parameter design and replacement model rationality test. For solving these problems in simulation process, taking constant false alarm rate （CFAR） modeling as example, put forwards CFAR modeling method in digital radar simulation system. Combine unknown parameter reasoning and evaluation of radar model with complex model replacement model, carry out parameter analysis and idea design. Through model designing and verifying, analyze and determine whether design model meets the key performance parameter requirements or not, then carry out negative setting and determine design rationality. The application results show that： the design method, which put the model designing and model verifying at the same time, can be used in digital Doppler searching radar simulation of certain type anti-submarine helicopter flight simulator. Through verification, it is proved that the design of radar simulation method has good practicability and rationality.

关 键 词：仿真 CFAR RCS 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]