Title :
The Traffic-Flow Detection Based on Pseudo-Random Coded Radar
Author_Institution :
Electron. Dept., Tianjin Univ. of Technol. & Educ., Tianjin, China
Abstract :
A new traffic flow detection system based on pseudo-random coded (PRC) CW radar is studied and developed in this paper. The proposed system can measure the speed of vehicles at a high resolution. The speed can be measured by the Doppler principle, and in the system the good correlation performance of PRC is used to get a high resolution of range and eliminate the interference from nearby lane vehicles. The digital signal processor transforms and processes the signal in time-frequency domain, and gains the vehicle velocity and flow rate rapidly and accurately.
Keywords :
CW radar; Doppler shift; interference suppression; pseudonoise codes; radar detection; radar signal processing; road traffic; spread spectrum radar; time-frequency analysis; Doppler principle; digital signal processor transform; interference elimination; pseudorandom coded CW radar; time-frequency domain; traffic flow detection system; vehicle velocity; Digital signal processors; Doppler radar; Interference elimination; Partial response channels; Radar detection; Signal processing; Signal resolution; Time frequency analysis; Vehicles; Velocity measurement; CW radar; Pseudo-random code; traffic flow;
Conference_Titel :
Measuring Technology and Mechatronics Automation, 2009. ICMTMA '09. International Conference on
Conference_Location :
Zhangjiajie, Hunan
Print_ISBN :
978-0-7695-3583-8
DOI :
10.1109/ICMTMA.2009.639
