Method and apparatus for estimating lag in antenna feeder cable of wireless transmission system
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United States of America Patent
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Mar 28, 2017
Grant Date -
Jan 5, 2017
app pub date -
Jun 30, 2015
filing date -
Jun 30, 2015
priority date (Note) -
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Abstract
A method includes transmitting, at a first time, a first transmission vector signal towards an antenna via a feeder cable connected to the antenna; receiving a first reflected vector signal, the first reflected vector signal being a reflection of the first transmission vector signal reflected from a point in the feeder cable; determining a first transformed transmission vector signal by performing a first vector forward transform on the first transmission vector signal; determining a first transformed reflected vector signal by performing a first vector forward transform on the first reflected vector signal; determining a first complex conjugate vector signal based on the first transmission vector signal and the first reflected vector signal; determining a first computed vector signal by performing a first vector inverse transform on the first complex conjugate vector signal; and determining a first sub-vector by performing a windowing function based on the first computed vector signal.
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