电子器件2017，Vol.40Issue(6)：1408-1413,6.DOI:10.3969/j.issn.1005-9490.2017.06.016
基于FPGA的多普勒雷达测速系统设计
Design of Doppler Radar Speed Measurement System Based on FPGA
摘要
Abstract
In order to realize the high real-time performance and high precision measurement of vehicle speed, a Doppler radar speed measurement system based on FPGA is designed. The system takes FPGA as the core processor,makes use of high precision ADC to acquire signals with mixed frequencies,then carries out fast Fourier transform( FFT) and analyses the spectrum by Welch algorithm in FPGA,which extract the Doppler frequency shift of moving vehicles,then uses the Doppler effect to calculate the velocity of the vehicle under test. The results of simulation and experiment show that the system works stably and has high real-time performance,the measurement accuracy is less than 1 km/h.关键词
雷达测速/FFT/FPGA/频谱分析Key words
radar speed measurement/FFT/FPGA/spectrum analysis分类
信息技术与安全科学引用本文复制引用
李锦明,张虎威,高文刚,郭淳..基于FPGA的多普勒雷达测速系统设计[J].电子器件,2017,40(6):1408-1413,6.基金项目
国家自然科学基金项目( 61335008) （ 61335008）
