【作者】 屈红刚；

【导师】 史林； 黄金杰；

【作者基本信息】 西安电子科技大学 ， 电子与通信工程， 2009， 硕士

【摘要】 本文结合某型号相控阵雷达信号处理器的研制,从工程应用的角度出发,提出了一种基于MTD中间滤波器噪声统计的噪声电平恒虚警门限形成,距离、方位、高低、脉冲重复频率、多谱勒滤波器号(频率)的多维动态杂波图门限形成以及邻近距离单元恒虚警门限形成的目标检测综合自适应处理方法。该方法旨在雷达多维分辨意义上的高分辨条件下,以实时统计得到的虚警概率为基准,自适应调整杂波图和邻近距离单元恒虚警检测门限系数,在保持系统的虚警概率相对恒定的条件下,使得系统的检测损失较小。文章还给出了目标检测综合自适应门限形成的工程实现方法,结合工程试验验证了该方法的有效性,并分析了其特点。更多还原

【Abstract】 According to the development of a signal processor for a phased array radar, in the aspect of practical engineering application, an integrated adaptive target detection processing approach is put forward on the basis of noise-level constant alarm threshold generation based on moving target detection (MTD) intermediate filter noise statistic, dynamic clutter map threshold generation in five dimensions of range, azimuth, elevation, pulse repetition frequency (PRF) and Doppler filter number (frequency), as well as constant false alarm threshold generation of adjacent range cells. The purpose of the approach is to adjust adaptively constant false alarm detection threshold coefficients of clutter map and adjacent range cell by taking the reference of false alarm probability obtained in real-time statistic, meanwhile to achieve multi-dimension high resolution, reduce system detection loss and keep a relatively stable system false alarm probability. Engineering implementation method of the integrated adaptive threshold generation for target detection is provided; and efficiency of the approach is verified in practical test and its characteristics are analyzed.更多还原