发明名称 |
System and method of synchronization recovery in the presence of pilot carrier phase rotation for an ATSC-HDTV receiver |
摘要 |
There is disclosed a system and method for recovering a recurring data segment synchronization pattern in the presence of an arbitrary phase rotation of a pilot carrier by detecting and compensating for the amount of the phase rotation. The system comprises a first synchronization pattern detector capable of receiving a real component of a complex signal and detecting a data segment synchronization pattern on the real component, and a second synchronization pattern detector capable of receiving an imaginary component of a complex signal and detecting a data segment synchronization pattern on the imaginary component. There is also disclosed a method for compensating a pilot carrier phase rotation comprising the steps of determining the angle of pilot carrier phase rotation present in a complex signal and rotating the pilot carrier signal through the same angle in the opposite direction. Methods are also disclosed for compensating signal gain in a complex signal in which pilot carrier phase rotation has occurred.
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申请公布号 |
US6760076(B2) |
申请公布日期 |
2004.07.06 |
申请号 |
US20000732583 |
申请日期 |
2000.12.08 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
WITTIG KARL R. |
分类号 |
H04L1/00;H04L7/00;H04L27/00;H04L27/06;H04N5/08;H04N5/44;H04N7/56;H04N11/00;(IPC1-7):H04N5/04 |
主分类号 |
H04L1/00 |
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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