| 摘要 |
<p>Various embodiments provide modulation schemes that produce carrier waves with narrower spectral widths than conventionally modulated carrier waves transmitting at the same symbol rate. The spectral widths are decreased by increasing interference between symbols that represent successive data values. The transmitter processes the symbols with a partial response function defined by <DF>Ä1+ SIGMA <K> i=1Z<-i>Ü </DF> and modulates a carrier wave with the processed symbols. The integer K is greater than one. <IMAGE></p> |
