发明名称 |
Efficient QAM equalizer/demodulator with non-integer sampling |
摘要 |
A QAM demodulator that samples an IF input modulated with data at a fractional complex sampling rate between one and two times the data rate. The use of a fractional sampling rate significantly reduces the number of components necessary to implement the demodulator, particularly in the equalizer section of the demodulator which corrects for channel distortion. The fractional sampling rate demodulator architecture of the invention provides a significant reduction in integrated circuit surface area needed in a VLSI implementation.
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申请公布号 |
US5495203(A) |
申请公布日期 |
1996.02.27 |
申请号 |
US19940349174 |
申请日期 |
1994.12.02 |
申请人 |
APPLIED SIGNAL TECHNOLOGY, INC. |
发明人 |
HARP, JEFFREY C.;SNYDER, LEE;TSUI, ERNEST |
分类号 |
H04L7/02;H04L25/03;H04L27/38;(IPC1-7):H04L27/38 |
主分类号 |
H04L7/02 |
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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