OFDM Radar Range Accuracy Enhancement Using Fractional Fourier Transformation and Phase Analysis Techniques

被引：10

作者：

Li, Jianguo ^{[1
]}

An, Sining ^{[2
]}

An, Jianping ^{[1
]}

Zirath, Herbert ^{[2
]}

He, Zhongxia Simon ^{[2
]}

机构：

[1] Beijing Inst Technol, Beijing 100081, Peoples R China

[2] Chalmers Univ Technol, SE-41296 Gothenburg, Sweden

来源：

IEEE SENSORS JOURNAL | 2020年 / 20卷 / 02期

关键词：

OFDM radar; phase analysis technique; fractional Fourier transformation; range accuracy; WAVE-FORM DESIGN; FACTORY AUTOMATION; NETWORK; SENSOR;

D O I：

10.1109/JSEN.2019.2946003

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Orthogonal Frequency Division Multiplexing (OFDM) technique is obtained significant attention in radar applications for its interference resilience property. In this paper, Fractional Fourier Transformation (FRFT) and phase analysis techniques are proposed to enhance ranging accuracy of an OFDM Radar. A proof-of-concept radar is built and tested at 79 GHz and a range accuracy of 20 mu m at 5 MHz measurement rate was measured. The range accuracy is 500 times higher than using fast Fourier transformation (FFT) method.

引用

页码：1011 / 1018

页数：8

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