发明名称 |
ECHO CANCELLATION AND CHANNEL EQUALIZATION FOR DIGITAL TRANSMISSION |
摘要 |
<p>A method for determining and reducing or eliminating mid-range and long-range echoes in the digital data transmission (in ATSC VSB system) is described. A portion of an ATSC VSB television signal is separated from the rest of the signal, certain values are set to zero and it is correlated with a first vector of data. The result of the correlation represents a channel model as affected by echoes within the channel, and then a second vector of data is added to it to derive correction information useful in positioning moveable filter taps to suppress the most prominent echoes.</p> |
申请公布号 |
WO0064114(A1) |
申请公布日期 |
2000.10.26 |
申请号 |
WO2000EP03340 |
申请日期 |
2000.04.13 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
KOO, DAVID, D. |
分类号 |
H04L25/02;H04N21/2383;H04N21/438;(IPC1-7):H04L25/02;H04N7/24 |
主分类号 |
H04L25/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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