电子测量与仪器学报

张海燕,汪润,万健中.基于IRife算法的高精度LFMCW雷达测距方法[J].电子测量与仪器学报,2017,31(2):251-256

基于IRife算法的高精度LFMCW雷达测距方法

LFMCW radar ranging method with high precision based on IRife algorithm

DOI：10.13382/j.jemi.2017.02.013

英文关键词:improved Rife radar ranging linear frequency modulation continuous wave field programmable gate array

基金项目:国家自然科学基金（61371156) 资助项目

作者	单位
张海燕	合肥工业大学计算机与信息学院合肥230009
汪润	合肥工业大学计算机与信息学院合肥230009
万健中	合肥工业大学计算机与信息学院合肥230009

Author	Institution
Zhang Haiyan	School of Computer and Information, Hefei University of Technology, Hefei 230009, China
Wang Run	School of Computer and Information, Hefei University of Technology, Hefei 230009, China
Wan Jianzhong	School of Computer and Information, Hefei University of Technology, Hefei 230009, China

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中文摘要:

为实现高精度线性调频连续波（LFMCW）雷达测距，在分析Rife算法的基础上，提出了基于改进Rife（IRife）算法的LFMCW雷达测距方法。首先介绍了该方法的实现原理和实现步骤，然后在型号为EP4CE55F23A7N的FPGA芯片上进行方法实现，最后将该方法嵌入LFMCW雷达测距系统中进行现场实验验证。仿真和现场实验结果表明，在相同的信噪比条件下，相较于基于Rife算法的测距方法，基于IRife算法的测距方法均方根误差小，测距精度高，稳定性好，证明了该方法的有效性。

英文摘要:

To achieve high precision of linear frequency modulation continuous wave (LFMCW) radar ranging, a kind of LFMCW radar ranging method is presented based on the Improved Rife (IRife) algorithm. At first, it introduces the principles and implementation steps of this method. And then, it implements this algorithm on FPGA of EP4CE55EF23A7N model. Finally, the algorithm embedded into the LFMCW radar ranging system is performed in field test. The simulation and experiment results verifying the effectiveness of this method show that IRife algorithm reveals its small root mean square error (RMSE) and high ranging precision and stability compared with the Rife algorithm under the condition of the same signal to noise ratio (SNR).

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