|
|||||
|
|
| LFMCW雷达测距系统及其信号处理算法的设计 | |
| 引用本文： | 陈文会,孟欣喜.LFMCW雷达测距系统及其信号处理算法的设计[J].科学技术与工程,2011,11(33):8191-8194. |
| 作者姓名： | 陈文会 孟欣喜 |
| 作者单位： | 1. 西北工业大学电子信息学院,西安,710129 2. 陕西脉航交通测控有限公司,西安,710061 3. 西北工业大学自动化学院,西安,710129 |
| 摘 要： | 设计了一款基于ARM单片机的线性调频连续波(LFMCW)雷达测距系统,其采用三角波调制的LFMCW雷达实现目标距离测量。介绍了LFMCW雷达的基本结构和实现目标距离测量的原理,并重点研究了LFMCW雷达测距系统的信号处理算法——快速傅里叶变换(FFT)和线性调频Z变换(CZT)联合的测距算法(FFT/CZT联合算法)的实现。经理论计算和MATLAB仿真分析表明,FFT/CZT联合算法可以显著提高计算效率和精度。 |
| 关 键 词： | LFMCW雷达 测距系统 FFT算法 FFT/CZT联合算法 MATLAB |
| 收稿时间： | 8/31/2011 5:44:03 PM |
| 修稿时间： | 8/31/2011 5:44:03 PM |
Design of LFMCW Radar Ranging System and Signal Processing Algorithm |
|
| chenwenhui and.Design of LFMCW Radar Ranging System and Signal Processing Algorithm[J].Science Technology and Engineering,2011,11(33):8191-8194. | |
| Authors: | chenwenhui and |
| Institution: | 3 (School of Electronics and Information,Northwestern Polytechnical University1,Xi’an 710129,P.R.China; Shaanxi Maihang Traffic Control Ltd.Co.2,Xi’an 710061,P.R.China; School of Automation,Northwestern Polytechnical University3,Xi’an 710129,P.R.China) |
| Abstract: | A Linear Frequency Modulated Continuous Wave (LFMCW) radar ranging system based on ARM single-chip microcomputer is designed in this paper. A LFMCW radar with triangular modulation is adopted to measure target range. This paper presents the basic structure of LFMCW radar and the principles of using LFMCW radar to measure target range. The signal processing algorithm of LFMCW radar ranging system which combines FFT algorithm and CZT algorithm to process radar signal are emphatically introduced. The theoretical calculation and MATLAB simulation results prove that FFT/CZT algorithm could improve the calculation efficiency and accuracy greatly. |
| Keywords: | LFMCW radar Ranging system FFT algorithm FFT/CZT algorithm MATLAB |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《科学技术与工程》浏览原始摘要信息 | |
| 点击此处可从《科学技术与工程》下载免费的PDF全文 | |