Title :
Absolute Phase-Based Distance Measurement for Industrial Monitoring Systems
Author :
Schicht, Andreas ; Huber, Klaus ; Ziroff, Andreas ; Willsch, Michael ; Schmidt, Lorenz-Peter
Author_Institution :
Microwave Eng. & High Freq. Technol., Univ. of Erlangen-Nuremburg, Erlangen, Germany
Abstract :
In this paper, principal considerations for a high accuracy millimeter wave (mmw) radar distance measurement system applicable to be used in harsh industrial environments are presented. The system is based on continuous wave (CW) measurement of the reflection coefficient and interpretation of the signal phase. The ambiguity of the phase is overcome by means of a multiple frequency technique. For absolute distance determination, an online calibration procedure is applied. The applicability of the system is underlined by a laboratory demonstrator measurement.
Keywords :
calibration; distance measurement; millimetre wave measurement; phase measurement; radar applications; absolute phase-based distance measurement; continuous wave measurement; industrial monitoring systems; millimeter wave radar distance measurement system; multiple frequency technique; online calibration procedure; reflection coefficient; signal phase interpretation; Calibration; Distance measurement; Frequency; Millimeter wave measurements; Millimeter wave radar; Millimeter wave technology; Monitoring; Phase measurement; Radar measurements; Reflection; Calibration; distance measurement; millimeter wave radar; multiple frequency continuous wave (CW) radar; phase measurement;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2009.2025582
