| 基于DSP的雷达车辆检测器的研制 |
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| 引用本文： | 何佩琨,李琴,朱军,李昱波.基于DSP的雷达车辆检测器的研制[J].北京理工大学学报,2004,24(8):727-730. |
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| 作者姓名： | 何佩琨 李琴 朱军 李昱波 |
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| 作者单位： | 北京理工大学,信息科学技术学院电子工程系,北京,100081 |
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| 摘 要： | 研究一种基于DSP芯片TMS320F240处理器的雷达车辆检测器.该检测器在简单的连续波上加上尖锐的定时标志,克服了连续波雷达不能测距的弱点,采用三角波调制的线性调频连续波雷达实现测距.通过在DSP中预存与各车道相应的FIR系数实现对车辆的检测,便于实时处理.选用带有外围接口如ADC,SCI(串行通信接口)的TMS320F240处理器,增加系统的集成度,减小干扰.实际运行证明,该车辆检测器对运动车辆的速度和流量的检测精度高达95%,适用于智能化的交通系统.
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| 关 键 词： | 车辆检测器 线性调频连续波雷达 测距 三角波调制 线性调频连续波雷达 车辆检测器 Digital Signal Processor Based Detector Vehicle Radar 交通系统 智能化 检测精度 流量 速度 运动车辆 运行 小干扰 集成度 串行通信接口 外围接口 实时处理 系数 |
| 文章编号： | 1001-0645(2004)08-0727-04 |
| 收稿时间： | 9/2/2003 12:00:00 AM |
| 修稿时间： | 2003年9月16日 |
Development of Radar Vehicle Detector Based on a Digital Signal Processor |
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| HE Pei-kun,LI Qin,ZHU Jun and LI Yu-bo.Development of Radar Vehicle Detector Based on a Digital Signal Processor[J].Journal of Beijing Institute of Technology(Natural Science Edition),2004,24(8):727-730. |
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| Authors: | HE Pei-kun LI Qin ZHU Jun and LI Yu-bo |
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| Institution: | Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China |
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| Abstract: | The design of a radar vehicle detector based on TMS320F240 is introduced. The vehicle detector makes use of LFMCW radar's range-measuring principle in detecting vehicles. To improve the ability of real-time processing, FIR numbers are used in the data processing and stored in the digital signal processor. TMS320F240 is chosen as the main signal processor as a low cost high integration degree DSP. The experiments have proved that the precision of detection in velocity and amount is up to 95%. |
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| Keywords: | vehicle detector LFMCW radar range-measuring triargle wave modulation |
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