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

Jianguo Li; Sining An; Jianping An; Herbert Zirath; Zhongxia Simon He

doi:10.1109/JSEN.2019.2946003

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

Jianguo Li, Sining An, Jianping An, Herbert Zirath, Zhongxia Simon He^*

^*Corresponding author for this work

School of Cyberspace Science and Technology

Chalmers University of Technology

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

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 \text{m} at 5 MHz measurement rate was measured. The range accuracy is 500 times higher than using fast Fourier transformation (FFT) method.

Original language	English
Article number	8861384
Pages (from-to)	1011-1018
Number of pages	8
Journal	IEEE Sensors Journal
Volume	20
Issue number	2
DOIs	https://doi.org/10.1109/JSEN.2019.2946003
Publication status	Published - 15 Jan 2020

Keywords

OFDM radar
fractional Fourier transformation
phase analysis technique
range accuracy

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abstract = "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 \text{m} at 5 MHz measurement rate was measured. The range accuracy is 500 times higher than using fast Fourier transformation (FFT) method.",

keywords = "OFDM radar, fractional Fourier transformation, phase analysis technique, range accuracy",

author = "Jianguo Li and Sining An and Jianping An and Herbert Zirath and He, {Zhongxia Simon}",

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AU - Zirath, Herbert

AU - He, Zhongxia Simon

PY - 2020/1/15

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AB - 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 \text{m} at 5 MHz measurement rate was measured. The range accuracy is 500 times higher than using fast Fourier transformation (FFT) method.

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KW - phase analysis technique

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

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Keywords

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