| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method and apparatus for decoding a wireless signal from a set of samples with an embedded training sequence. <P>SOLUTION: The method includes steps of determining a first frequency offset from the samples where the first frequency offset is assumed to be less than a Nyquist frequency of the training sequence, and calculating a first carrier to interference ratio based on the first frequency offset. The method further includes steps of determining a second frequency offset from the samples by subtracting an absolute value of the first frequency offset from an integer multiple of the Nyquist frequency and giving the second frequency offset a sign opposite to that of the first frequency offset, calculating a second carrier to interference ratio based on the second frequency offset, and selecting one of the first and second frequency offsets based on relative values of the calculated carrier to interference ratios. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
