Frequency comb MIMO OFDM radar demonstrator with high unambiguous velocity

Benjamin Nuss; Lucas Giroto de Oliveira; Thomas Zwick

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Frequency comb MIMO OFDM radar demonstrator with high unambiguous velocity

机译：Frequency comb MIMO OFDM radar demonstrator with high unambiguous velocity

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摘要

Digital radar waveforms such as orthogonal frequency-division multiplexing (OFDM) oftenhave the disadvantage that they require high sampling rates if fine range resolutions haveto be achieved. The frequency comb OFDM radar scheme offers a possibility to overcomethis drawback and to improve the range resolution without increasing the sampling rate.Simultaneously, the high unambiguous velocity, which is one of the advantages of digitalradar waveforms, is retained and due to the simple generation of orthogonal transmit signals,it is well suited for multiple-input multiple-output (MIMO) applications. To prove all thesefeatures of the frequency comb OFDM radar scheme, a suitable 4 × 4 MIMO demonstratorincluding frequency comb generation as well as up- and downconversion with these combshas been set up. Its functionality has been validated with real measurements in an anechoicchamber in conjunction with a radar target simulator to emulate very high velocities.

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来源
《International journal of microwave and wireless technologies》 |2023年第6期|957-965|共9页
作者
Benjamin Nuss; Lucas Giroto de Oliveira; Thomas Zwick;
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作者单位

Institute of Radio Frequency Engineering and Electronics, Karlsruhe Institute of Technology, 76131 Karlsruhe,Germany;

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原文格式 PDF
正文语种英语
中图分类一般性问题;
关键词
Frequency comb; OFDM radar; high range resolution; high unambiguous velocity; demonstrator;

Frequency comb MIMO OFDM radar demonstrator with high unambiguous velocity

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