OFDM Radar Range Accuracy Enhancement Using Fractional Fourier Transformation and Phase Analysis Techniques
Journal article, 2020
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 m at 5 MHz measurement rate was measured. The range accuracy is 500 times higher than using fast Fourier transformation (FFT) method.
Phase Analysis Technique
Fractional Fourier Transformation
Range accuracy
OFDM Radar
Author
Jianguo Li
Beijing Institute of Technology
Sining An
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
Jianping An
Beijing Institute of Technology
Herbert Zirath
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
Zhongxia Simon He
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
IEEE Sensors Journal
1530-437X (ISSN) 15581748 (eISSN)
Vol. 20 2 1011-1018 8861384Car2TERA
European Commission (EC) (EC/H2020/824962), 2019-01-01 -- 2022-03-31.
Subject Categories
Other Materials Engineering
Signal Processing
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/JSEN.2019.2946003