发明名称 |
Digital broadcast transmission system of improved receptability and signal processing method thereof |
摘要 |
A digital broadcast transmission system and a signal processing method thereof offers improved receptability. The digital broadcast transmission system includes an error correction encoding unit for encoding an input signal according to a predetermined error correction method; a synchronous signal inserting unit for inserting a synchronous signal in the input signal after the error correction encoding; a first pilot inserting unit for inserting a first pilot signal in the input signal which contains the synchronous signal therein; a second pilot inserting unit for inserting a plurality of second pilot signals in the input signal which contains the first pilot signal therein; a pulse shaping filter for pulse shaping the input signal with the first and the second pilot signals according to a predetermined roll-off factor; and a radio frequency (RF) unit for transmitting the pulse-shaped input signal to a transmission channel band. By inserting a plurality of pilot signals in the transmitted data, problems associated with disappearance of only pilot signal due to poor channel environment can be overcome.
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申请公布号 |
US2005047519(A1) |
申请公布日期 |
2005.03.03 |
申请号 |
US20040887310 |
申请日期 |
2004.07.09 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM JOON-SOO;LEE DONG-HOON;KWAK JUNG-WON;PARK CHAN-SUB |
分类号 |
H04N7/015;H04L1/00;H04L25/03;H04L27/00;H04L27/04;H04L27/06;(IPC1-7):H04L1/00 |
主分类号 |
H04N7/015 |
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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