发明名称 |
System and method for recognizing zero-amplitude symbols in a QAM signal and digital receiver incorporating the same |
摘要 |
A system for, and method of, recognizing zero-amplitude symbols in a quadrature amplitude modulated (QAM) signal and a digital receiver incorporating the system or the method. In one embodiment, the system includes: (1) an amplitude detector that extracts a candidate symbol from the signal and locates the candidate symbol relative to a constellation of symbols and (2) a zero-amplitude symbol interpreter, associated with the amplitude detector, that recognizes the candidate symbol as being a zero-amplitude symbol when the candidate symbol is closer to an origin of the constellation than to symbols proximate thereto.
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申请公布号 |
US2003016768(A1) |
申请公布日期 |
2003.01.23 |
申请号 |
US20010909394 |
申请日期 |
2001.07.19 |
申请人 |
HUANG GANG;LIANG MIN;WANG ZHENYU |
发明人 |
HUANG GANG;LIANG MIN;WANG ZHENYU |
分类号 |
H04L25/06;(IPC1-7):H03D1/00;H04L27/06 |
主分类号 |
H04L25/06 |
代理机构 |
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