一种双模式双参数杂波图恒虚警检测器的实现

介绍了一种双模式双参数杂波图恒虚警 (constantfalsealarmrate ,CFAR)检测器的系统设计和硬件实现。该检测器采用静态杂波图和动态杂波图两种工作模式 ,分别处理时域平稳和非平稳的杂波环境 ,并且引入双参数恒虚警的工作原理 ,从而显著提高了恒虚警检测单元的检测性能 ,有效地抑制了虚警。同时 ,在硬件设计上采用一种以DSP芯片作为数据处理核心、以EPLD(embeddedprogrammablelogicdevice)作为流程控制中心的结构 ,提高了整个模块的可编程性和设计灵活性 ,并能够满足系统实时处理的要求。

Implementation of a Dual-Mode Biparametric Clutter-Map CFAR Detector

The design and implementation of a dual-mode biparametric clutter-map CFAR(constant false alarm rate) detector is presented. Two modes, the static clutter map and the dynamic clutter map, are adopted in this detector, which adapt to stationary and non-stationary clutter environments in the time domain, respectively. Also, the operating principle of biparametric CFAR used in this detector improves the detection performance of the CFAR detection cell remarkably and restrains false alarm effectively. In addition, DSP as the data processing core and EPLD as the procedure controlling center are put into use in the hardware implementation, thus enhancing the programmability and design flexibility of the system meeting the requirements of data processing of the real-time system.