Error Propagation in a Practical Six-Port Device |
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Authors: | Andreas Stelzer Christian G Diskus and Christian Gamsjäger |
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Affiliation: | (1) Institute for Communications and Information Engineering, Johannes Kepler University, Altenberger Str. 69, A-4040 Linz, Austria;(2) Microelectronics Institute, Johannes Kepler University, Altenberger Str. 69, A-4040 Linz, Austria |
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Abstract: | In this contribution the various influences on the accuracy of the phase measurement unit of a near range precision radar are investigated. The front-end is a monostatic design operating at 34–36.2 GHz. The hardware configuration enables different modes of operation including FM-CW and a single frequency mode with phase and frequency measurement. To achieve a highly accurate distance measurement, attention must be paid to various error sources. Due to the use of a six-port it is rather complicated to determine the corresponding error propagation. In the following the results of investigations on how to achieve an exceptional accuracy of 0.1 mm are described. Especially the error propagation through the six-port is analyzed in detail. |
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Keywords: | six-port phase measurement radar FM-CW microwaves |
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