摘要
针对SAR对抗效能评估中的干扰效果推算难题,提出了一种基于等效映射的SAR压制干扰效果的推算新方法。首先,给出了SAR压制干信比与干扰前后输出图像相关系数之间的等效映射模型及其构造步骤;其次,证明了映射模型与常规的基于检测性能的推算模型之间的一致性及其优势;最后,利用异航次机载SAR的仿真试验结果进行模型验证。仿真表明,该方法相比基于检测性能的推算方法具有直观、运算量小和可操作性强的特点。
A new equivalent calculation method for the estimating the effect of noise jamming against SAR was studied. First, the equivalent mapping model of the relationship between jam to signal ratio and the correlation of the image before and after jamming was established. Then, the performance of the mapping model was deduced to be consistent with the routine calculation method based on the radar＇s ROC-Marcum curve, and the advantages of it were given. Lastly, the model was verified by the simulated ECM results using airborne SAR, before being used to calculate the effect of noise jamming against spaceborne SAR. Simulation shows the validity of this method.
出处
《电光与控制》
北大核心
2012年第4期6-9,30,共5页
Electronics Optics & Control
基金
国家自然科学基金项目(60802078)
关键词
合成孔径雷达
压制干扰
效果评估
等效推算
Synthetic Aperture Radar （SAR）
noise jamming
effectiveness measurement
equivalent calculation
