【作者】 谢逸明；

【导师】 赵树杰；

【作者基本信息】 西安电子科技大学 ， 信号与信息处理， 2002， 硕士

【摘要】 现代相控阵雷达由于其优良的性能和灵活的处理功能，获得了广泛的应用．本论文紧密结合国防装备研制的科研任务，首先详细描述脉冲积累和恒虚警率这两个方面基本理论，在脉冲积累方面：讲述了脉冲积累的基本概念和它对信号检测的影响，主要讨论了脉冲积累的三种方法即视频积累，二进制积累和频域积累等三种积累方法，在视频积累方面主要讨论了一阶和二阶反馈式积累，并对一阶和二阶反馈式积累作了比较，在二进制积累方面除了讨论了几种实用的二进制积累器以外，还对目标分裂进行了较为详细的研究；频域积累的优点是除了进行积累以外，还能估计多普勒频移；在恒虚警率方面，主要介绍了单元平均恒虚警检测，对数单元平均恒虚警检测等参量型恒虚警检测，另外还概要介绍了非参量型的恒虚警检测．其次在工程实现方面详细描述了数据的DFT处理，恒虚警处理，和门限形成和信号检测等方面的框图和实现方法，最后对系统所使用的软硬件进行了简单介绍．更多还原

【Abstract】 Modern phase array radar (PAR) has been widely used because of its good performance and flexible processing ability. This thesis was written based on the "PHR missile guidance station" development project.We will discuss two subjects in radar field: pulse integration and constant false alarm rate (CFAR). First, we describe the basic concepts of pulse integration and its effect on the signal detection. Three types of pulse integrations are introduced, i.e. video integration, binary integration and frequency domain integration. For the video integration, one and two order feedback integration are discussed and compared. For the binary integration, several useful binary integrators as well as target splitting are introduced. As for the frequency domain integration, it has the advantage in that it can estimate Doppler shift. Then we deal with CFAR, mainly including cell average CFAR, log/cell average CFAR and nonparametric CFAR detection. In this thesis, we also present detailedly the realization of and diagram of the data truncation, DFT processing, CFAR, threshold forming and signal detection in our project. Finally we briefly show the hardware and software used in the system.更多还原