Position Estimation of Lap Joints for Seam Tracking Applications at mm-Wave Frequencies

Jochen Oliver Schrattenecker; Andreas Haderer; Günther Reinthaler; Andreas Stelzer

doi:10.1017/S1759078713000329

Position Estimation of Lap Joints for Seam Tracking Applications at mm-Wave Frequencies

Jochen Oliver Schrattenecker, Andreas Haderer, Günther Reinthaler, Andreas Stelzer

Department of RF-Systems

Research output: Contribution to journal › Article › peer-review

Abstract

In this paper, we present the results of using a frequency-stepped continuous-wave radar system to estimate the position of overlapping and electrically good conductive plates. We especially focus on polarimetric scattering effects caused by the step of a lap joint, which is a common welding-geometry. To model the step's contribution to the overall scattered signal, we use a two-dimensional combined field integral equation (CFIE) approach. For demonstrating its practical applicability, the implemented scattering model is verified by measurements. To emphasize the improvements of position estimation by using a CFIE approach, the outcomes of the model are compared to a commonly used point scattering model. Finally, the numerical signal is utilized to precisely estimate the position of the lap joint.

Original language	English
Pages (from-to)	409 - 417
Number of pages	9
Journal	International Journal of Microwave and Wireless Technologies
DOIs	https://doi.org/10.1017/S1759078713000329
Publication status	Published - Apr 2013

Fields of science

202019 High frequency engineering
202029 Microwave engineering
202033 Radar technology

JKU Focus areas

Mechatronics and Information Processing

Access to Document

10.1017/S1759078713000329

Cite this

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title = "Position Estimation of Lap Joints for Seam Tracking Applications at mm-Wave Frequencies",

abstract = "In this paper, we present the results of using a frequency-stepped continuous-wave radar system to estimate the position of overlapping and electrically good conductive plates. We especially focus on polarimetric scattering effects caused by the step of a lap joint, which is a common welding-geometry. To model the step's contribution to the overall scattered signal, we use a two-dimensional combined field integral equation (CFIE) approach. For demonstrating its practical applicability, the implemented scattering model is verified by measurements. To emphasize the improvements of position estimation by using a CFIE approach, the outcomes of the model are compared to a commonly used point scattering model. Finally, the numerical signal is utilized to precisely estimate the position of the lap joint.",

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AU - Haderer, Andreas

AU - Reinthaler, Günther

AU - Stelzer, Andreas

PY - 2013/4

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AB - In this paper, we present the results of using a frequency-stepped continuous-wave radar system to estimate the position of overlapping and electrically good conductive plates. We especially focus on polarimetric scattering effects caused by the step of a lap joint, which is a common welding-geometry. To model the step's contribution to the overall scattered signal, we use a two-dimensional combined field integral equation (CFIE) approach. For demonstrating its practical applicability, the implemented scattering model is verified by measurements. To emphasize the improvements of position estimation by using a CFIE approach, the outcomes of the model are compared to a commonly used point scattering model. Finally, the numerical signal is utilized to precisely estimate the position of the lap joint.

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