Implementation of FMCW radar at low frequencies

FMCW radar is a low power technique for distance measurement suitable for many applications. At low frequencies, FMCW (Frequency Modulated Continuous Wave) radar can penetrate shadow zones or complex media such as forest. The need for large bandwidth in the measurements may require the use of log pe...

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Veröffentlicht in:	International journal of electronics and communications 2020-04, Vol.117, p.153082, Article 153082
1. Verfasser:	Sandström, Sven-Erik
Format:	Artikel
Sprache:	eng
Schlagworte:	Electrotechnology Elektroteknik alt Electrical engineering Extended bandwidth FMCW radar Low frequency USRP Vågor och signaler Waves and Signals
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	FMCW radar is a low power technique for distance measurement suitable for many applications. At low frequencies, FMCW (Frequency Modulated Continuous Wave) radar can penetrate shadow zones or complex media such as forest. The need for large bandwidth in the measurements may require the use of log periodic antennas. In this study, signal processing and calibration are implemented in Labview, in combination with a USRP (Universal Software Radio Peripheral). A USRP is a form of interface between the RF hardware and the computer. The total bandwidth and the resolution are increased by reusing the bandwidth of the USRP.
ISSN:	1434-8411 1618-0399 1618-0399
DOI:	10.1016/j.aeue.2020.153082