Efficient channel shortening in communication systems
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United States of America Patent
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Dec 29, 2009
Grant Date -
Dec 27, 2007
app pub date -
Jun 21, 2006
filing date -
Jun 21, 2006
priority date (Note) -
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Abstract
A communication system includes a channel shortening filter to reduce intersymbol interference and facilitate recovery of communications. The channel shortening filter preferably includes a energy concentration filter that optimizes SNR or SINR or other performance criterion and a impulse response tail canceller filter that eliminates energy or, equivalently, cancels coefficients outside the allowed delay-spread window for the channel. Preferably the filters are calculated using signal decomposition.
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