摘要
首先围绕连续毫米波雷达测速算法展开研究,分析了毫米波雷达的测速原理,引出了其测速本质——谱峰搜索;然后利用快速傅里叶变换这一数字信号处理领域中的经典方法,实现了对雷达回波信号的频谱谱峰位置的快速捕获;为进一步提高连续毫米波雷达的测速精度,在快速傅里叶变换的基础上,再引入Chirp Z变换方法,通过频谱细化实现了对测速算法计算分辨率的有效提升;最后借助MATLAB软件,完成了对所研算法的程序进行编写,并设计了若干算例,通过仿真测试验证了算法的有效性。
Firstly,the algorithm of continuous millimeter wave radar velocity measurement is studied,the principle of velocity measurement is analyzed,and the essence of velocity measurement—spectrum peak search is brought out.Then,the classical method in the field of digital signal processing,fast Fourier transform,is used to capture the spectrum peak position of radar echo signal.In order to further improve the velocity measurement of continuous millimeter wave radar Accuracy,on the basis of fast Fourier transform,the Chirp Z transform method is introduced,and the resolution of the algorithm is effectively improved through spectrum refinement.Finally,with the help of MATLAB software,the program of the algorithm is completed,and several examples are designed,and the effectiveness of the algorithm is verified by simulation test.
作者
张志鹏
刘慧
朱倩倩
陈春阳
陈兵兵
ZHANG Zhipeng;LIU Hui;ZHU Qianqian;CHEN Chunyang;CHEN Bingbing(School of Electronic Information and Electrical Engineering,Hefei Normal University,Hefei 230601,China;School of Computer Science and Technology,Hefei Normal University,Hefei 230601,China)
出处
《现代信息科技》
2020年第2期53-55,共3页
Modern Information Technology
基金
合肥师范学院国家级大学生创新创业训练计划项目(201914098068、201814098054)
电子信息系统仿真设计安徽省重点实验室开放基金项目(2019ZDSYSZB03)。
