发明名称 |
Method and Device for Correcting Non-Ideal Intermediate-Frequency Signals in Distance Sensing Device According to the FMCW Principle |
摘要 |
In fill-level measuring devices that operate according to the FMCW principle, nonlinearity of the sensor signal depending on the time can result in measuring inaccuracies. The fill-level measuring device that operates according to the FMCW principle comprises a correction unit for the mathematical correction of the amplitude values or for calculating points in time of scanning the amplitude values on the basis of a reference correlation determined at the factory. In this way intermediate-frequency values that are identical to those of an ideal sensor can be derived.
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申请公布号 |
US2008143583(A1) |
申请公布日期 |
2008.06.19 |
申请号 |
US20070942266 |
申请日期 |
2007.11.19 |
申请人 |
WELLE ROLAND;GRIESSBAUM KARL;FEHRENBACH JOSEF |
发明人 |
WELLE ROLAND;GRIESSBAUM KARL;FEHRENBACH JOSEF |
分类号 |
G01S13/08 |
主分类号 |
G01S13/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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