Method for estimating the transfer function of a multicarrier signal transmission channel and corresponding receiver
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United States of America Patent
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Jul 10, 2007
Grant Date -
Dec 2, 2004
app pub date -
May 15, 2002
filing date -
May 30, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention concerns a method for estimating the transfer function of a multicarrier signal transmission channel consisting of a temporal succession of symbols of a set of data elements, each of the data elements modulating a carrier frequency of the signal, the data elements comprising pilots and so-called informative data elements. The invention is characterized in that said method comprises: a step which consists in determining a set of two-dimensional discrete prolate spheroidal sequences (DPSS); a step which consists in writing the transfer function in the form of a combination of at least some of the two-dimensional discrete prolate spheroidal sequences (DPSS); a step which consists in time-based and frequency-based two-dimensional interpolation of at least some of the coefficients of the combination, so as to obtain an estimation of the transfer function at any point of a time-frequency network.
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