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基于DSP的雷达车辆检测器的研制
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
作者姓名:何佩琨  李琴  朱军  李昱波
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;北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081
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.

关 键 词:车辆检测器  线性调频连续波雷达  测距  三角波调制
文章编号:1001-0645(2004)08-0727-04
收稿时间:2003-09-02
修稿时间:2003-09-16

Development of Radar Vehicle Detector Based on a Digital Signal Processor
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
Authors:HE Pei-kun  LI Qin  ZHU Jun  LI Yu-bo
Affiliation: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
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%.
Keywords:vehicle detector  LFMCW radar  range-measuring  triargle wave modulation
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