摘要
针对红外预警系统分析可疑来袭目标时减少反应时间和降低虚警率之间的矛盾,提出了一种采用多级预警机制的红外预警实时图像处理系统设计方案,设置告警级别,针对不同探测与处理结果给出不同级别的告警信号。同时针对推扫式红外预警系统的成像特点,采用多路处理方法以提升系统实时性。硬件方面为满足多级预警与多路处理方法的需求,基于Xilinx公司的Virtex 5系列FPGA与TI公司TMS320C6455型高速DSP为核心处理器设计多核架构,开发了FPGA内部的DSP运算内核,增强了系统的运算能力。实验表明,采用多级红外预警和多路处理技术能够在满足虚警率要求的同时提升系统的实效性。
For infrared warning system analysing suspicious incoming targets, to reduce the contradiction between the less response time and the lower false alarm rate, it is proposed a multistage warning mechanism of infrared early warning and real-time image processing system design scheme, which sets the alarm level according to different detection and treatment results of different levels of the alarm signal given. For the push-broom type infrared imaging characteristics of early warning system, multi-channel processing method is adopted to enhance the system real-time performance. To meet the needs of multi-level warning and multi-channel processing method, hardware is multi-core architecture based on Xilinx company＆#39;s Virtex 5 FPGA and TI company DSP TMS320C6455 as the core processor, which develops the DSP arithmetic kernel within the FPGA , enhancing the capacity of the system. Experiments show that the multistage infrared warning and multi-channel processing technology can satisfy the requirement of false alarm rate while improving the system efficiency.
出处
《红外技术》
CSCD
北大核心
2014年第2期131-135,共5页
Infrared Technology
基金
国家自然科学基金资助项目
编号:61003148
关键词
多级预警
红外预警
多路处理
多核架构
图像处理
multistage early-warning
infrared early-warning
multi-channel processing
multi-core architecture
image processing
