Daniela Karina Bleh: W-Band FMCW MIMO radar demonstrator system for 3D imaging.
W-Band FMCW MIMO radar demonstrator system for 3D imaging.
Buch
- Fraunhofer Verlag, 09/2022
- Einband: Kartoniert / Broschiert, Paperback
- Sprache: Englisch
- ISBN-13: 9783839612545
- Bestellnummer: 10027081
- Umfang: 120 Seiten
- Gewicht: 187 g
- Maße: 274 x 156 mm
- Stärke: 12 mm
- Erscheinungstermin: 7.9.2022
- Serie: Science for systems,
Achtung: Artikel ist nicht in deutscher Sprache!
Klappentext
One of the most dangerous situations when flying a helicopter is landing over dry sand or powder snow. The rotors swirl particles creating a dense cloud. With optical methods navigating through this cloud is impossible but for millimetre waves it becomes almost transparent. As a consequence millimetre waves are an outstanding choice for the development of imaging systems that can be used as a landing aid. The aim of this work is the 3D imaging of static scenes with a large field of view, good resolution and high dynamics. In this thesis a demonstrator system is presented, which is based on the MIMO principle and works with FMCW radar modules in the millimetre wavelength range. The set-up of the demonstrator system is explained and the hardware components are described. An algorithm for image reconstruction is presented as well as a calibration routine. An optimized antenne aperture is determined that enables unambiguous imaging of the half-space in front of the aperture with good resolution and low side lobes. Various measurements illustrate three-dimensional imaging capabilities and show long-range operation. In addition, the data acquisition rate is determined.Anmerkungen:
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