雷达定位中高速数据采集系统的实现  

High-Speed Data Acquisition System Design of Radar Location

作　　者：黄斌[1] 李晓明[1] 王晶[2] 

机构地区：[1]武汉大学电气工程学院,湖北武汉430072 [2]浙江大学宁波理工学院,浙江宁波315104

出　　处：《低压电器》2004年第9期26-30,共5页Low Voltage Apparatus

摘　　要：在雷达定位系统现场 ,对于最为常见的线性调频脉冲 (CHIRP)信号 ,为实现 0 .1～ 1m的分辨率 ,需要有超高速的数据采集系统。目前国内采集系统的采样频率最高为 30MHz ,一般不能实现实时处理。开发了一种基于数字信号处理器DSP和PCI总线的实时超高速数据采集系统 ,不仅能实现高速数据采集 ,而且能实时进行数据处理。介绍该高速数据采集系统的基本原理和硬、软件设计 ,以及所采取的系统抗干扰措施。The high-speed data acquisition system is necessary for the most familiar CHIRP signal to reach the resolution 0.1～1 m in the field of radar location system. But the highest sampling rate of civil acquisition system is 30 MHz at present and usually can't perform real-time processing. A high-speed real-time data acquisition system was developed based on digital signal processor (DSP) and PCI bus which can perform not only high-speed data acquisiton, but also realtime processing. The basic principle, the design of the hardware and software of the high-speed data acquisition system as well as the some measures of anti-interfrence for the system were introduced.

关 键 词：雷达 DSP PCI 高速数据采集 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]