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- Title
Applications of radar measurement technology using 24 GHz, 61 GHz, 80 GHz and 122 GHz FMCW radar sensors.
- Authors
Bhutani, Akanksha; Marahrens, Sören; Kretschmann, Marius; Ayhan, Serdal; Scherr, Steffen; Göttel, Benjamin; Pauli, Mario; Zwick, Thomas
- Abstract
This paper presents a review of radar applications in high-accuracy distance measurement of a target. The radars included in this review are frequency modulated continuous wave (FMCW) radar sensors operating in four different millimeter-wave frequency bands, namely 24 GHz, 61 GHz, 80 GHz and 122 GHz. The radar sensors are used to measure the distance of standard and complex targets in a short range of a few meters, thus indicating that the choice of target and the medium used for radar signal propagation also play a key role in determining the distance measurement accuracy of an FMCW radar. The standard target is a trihedral corner reflector in a laboratory-based free space measurement setup and the complex targets include a piston in an oil-filled hydraulic cylinder and a planar positioning stage used in micromachining. In each of these measurement scenarios, a distance measurement accuracy in micrometer range is achieved due to the use of a sophisticated signal processing algorithm that is based on a combined frequency and phase estimation method. The paper is concluded with a technical comparison of the accuracy achieved by the FMCW radars reviewed in this article with other related works.
- Subjects
RADAR; HYDRAULIC cylinders; DETECTORS; SIGNAL processing; CONTINUOUS wave radar; NANOPOSITIONING systems; MICROMACHINING
- Publication
Technisches Messen, 2022, Vol 89, Issue 2, p107
- ISSN
0171-8096
- Publication type
Article
- DOI
10.1515/teme-2021-0034