Short-range measurement precision improvement algorithm for frequency modulated continuous wave terahertz radar

ZHANG Chen; SHI Zai-feng; GUO Wei; PANG Ke; YAO Su-ying

doi:10.13873/J.1000-9787(2016)09-0141-03

Chinese

您当前的位置：

首页 >

文章列表页 >

Short-range measurement precision improvement algorithm for frequency modulated continuous wave terahertz radar

更新时间：2025-09-11

- Short-range measurement precision improvement algorithm for frequency modulated continuous wave terahertz radar
- Vol. 35, Issue 9, Pages: 141-143+151(2016)
- 作者机构：
  
  1. 天津大学电子信息工程学院
  2. 天津大学计算机科学与技术学院
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2016)09-0141-03
  CLC： TN958
- Published：2016
- 稿件说明：
移动端阅览
[1]张晨,史再峰,郭炜,庞科,姚素英.调频连续波太赫兹雷达近程测距精度提高算法[J].传感器与微系统,2016,35(09):141-143+151.

ZHANG Chen, SHI Zai-feng, GUO Wei, et al. Short-range measurement precision improvement algorithm for frequency modulated continuous wave terahertz radar[J]. 2016, 35(9): 141-143+151.
[1]张晨,史再峰,郭炜,庞科,姚素英.调频连续波太赫兹雷达近程测距精度提高算法[J].传感器与微系统,2016,35(09):141-143+151. DOI： 10.13873/J.1000-9787(2016)09-0141-03.

ZHANG Chen, SHI Zai-feng, GUO Wei, et al. Short-range measurement precision improvement algorithm for frequency modulated continuous wave terahertz radar[J]. 2016, 35(9): 141-143+151. DOI： 10.13873/J.1000-9787(2016)09-0141-03.

摘要

太赫兹雷达的波长短且带宽大

与微波、毫米波相比

易于实现很高的测距精度。采用调频连续波雷达测距

在差频信号进行频谱分析过程中

频谱泄露和栅栏效应影响其测距精度。该算法通过调整采样参数实现整周期采样

减少频谱泄露

通过峰值谱线和相邻谱线构成的梯度法估计频谱峰值中心频率

减小离散频谱间隔造成的误差

通过两步的校正提高测距精度。实验结果表明:该算法的测量精度误差与传统频率估计法相比有所降低

与直接采用FFT的方法平均提高了58.5%。

Abstract

Compared with microwave and millimeter-wave

Terahertz radar is easy to realize high distance measurement precision due to short wavelength and wide bandwidth.It adopts frequency modulated continuous wave radar

in the process of spectral analysis of beat signal

the spectrum leakage and fence effect have impact on distance measurement precision.By adjusting sampling parameter to realize integral period sampling reduce spectrum leakage

and central frequency of peak spectral frequency is estimated by the gradient method which is made up of peak spectral line and adjacent spectral lines

reduces error caused by discrete spectrum interval.The precision is improved by two steps correction.Experimental results indicate that error of measurement precision of proposed algorithm is reduced compared with traditional frequency estimation method

precision of proposed method is increased by an average of 58.5 % compared with FFT.

关键词

Keywords

references

港口起重机雷达防撞系统的信号处理电路的设计 [J]. 邹祥林,周洪,叶鹏. 传感器与微系统 . 2007(12)

离散频谱的能量重心校正法 [J]. 丁康,江利旗. 振动工程学报 . 2001(03)

Views

226

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research of non-contact torque sensing measurement based on digital industrial photogrammetry

An unmanned airship attitude measurement system based on MEMS sensors

Related Author

ZI Xin-yun

GENG Shuai

ZHAO Shu-fan

ZHANG Peng

PANG Hai-long

HU Shao-xing

LIU Dong-chang

ZHANG Ai-wu

Related Institution

Engineering Experiment Center,Department of Automobile Engineering,Military Transportation University

School of Mechanical Engineering and Automation,Beihang University

Key Laboratory of 3D Information Acquisition and Application,Ministry of Education, Captial Normal University

⁰