红外电视跟踪器的数据处理系统设计  

Design of a Data Processing System for Infrared TV Tracker

作　　者：李海燕[1] 胡云安[1] 闫喆[1] 

机构地区：[1]海军航空工程学院控制工程系,山东烟台264001

出　　处：《电光与控制》2011年第1期82-84,89,共4页Electronics Optics & Control

摘　　要：针对红外电视跟踪器对导弹等高速运动目标跟踪实时性的要求和数据流量大、处理速度高的特点,设计了基于DSP+FPGA架构的电视跟踪器数据处理系统。该系统采用高速数字信号处理器TMS320DM642作为核心处理器完成目标的识别与跟踪,计算脱靶量信息;FPGA作为协处理器完成图像的采集和预处理。该系统能够完成对海面舰船目标和空中飞机目标的识别和跟踪,并与主控计算机实时传送脱靶量,提高了系统跟踪的稳定性。提出了一种基于像素灰度百分比的快速阈值分割算法,满足系统实时性的要求。实验证明该系统可靠性高,整体性能有较大提高。In tracking the target such as a missile which is moving at high speed,the infrared TV tracker should have real-time performance and high processing speed for large quantity of data.Thus we designed a data processing system for TV tracker based on DSP and FPGA.The high performance DSP TMS320DM642 was adopted as the processing core unit to implement target identification and tracking,and to calculate the target deviation.The FPGA was used as a coprocessor for image acquisition and pre-processing.This system can recognize and track different sea-surface and aerial objects,and transmit miss-distance to main computer in real-time to enhance the tracking stability.A fast threshold segmentation algorithm based on pixels＇ grey-scale percentage was put forward to satisfy the real-time requirement of the system.The experimental results show this system has high reliability,and can improve the overall performance.

关 键 词：光电测量 电视跟踪器 数据处理 

分 类 号：V271.4[航空宇航科学与技术—飞行器设计]