发明名称 |
Symbol timing recovery using fir data interpolators |
摘要 |
A symbol timing recovery method and device which aligns the received data with a free-running symbol clock such that the aligned data sampling error is minimized. The symbol timing recovery process consists of detecting the timing phase error between the transmitters symbol clock and the receiver symbol clock, filtering the error, and then using the filtered error signal to control a block which changes the phase of the data relative to the timing reference signal. A data zero-crossing phase error detector drives a loop filter whose most significant bits form the address of the FIR coefficient ROM, which allows the FIR to interpolate data at sub-symbol resolution. The FIR coefficients are then used to synchronize the received data with the receiver clock.
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申请公布号 |
US5524126(A) |
申请公布日期 |
1996.06.04 |
申请号 |
US19940341891 |
申请日期 |
1994.11.15 |
申请人 |
HUGHES ELECTRONICS |
发明人 |
CLEWER, RICHARD;ANANDKUMAR, JANAVIKULAM;MACDONALD, ANDREW |
分类号 |
H03H17/06;H04L7/02;(IPC1-7):H04L7/00 |
主分类号 |
H03H17/06 |
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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