发明名称 |
RECEIVER CIRCUIT OF SATELLITE DIGITAL VIDEO BROADCAST SYSTEM |
摘要 |
A receiver circuit of a satellite digital video broadcast system includes: a multiplication unit outputting a synchronized reception symbol by multiplying a reception symbol by frequency error information as a feedback; a common autocorrelation unit acquiring autocorrelation values for each symbol by multiplying the synchronized reception symbol by an autocorrelation coefficient; a frame synchronization unit detecting a SOF (Start Of Frame), which is a synchronization word indicating start of a frame, from the autocorrelation values for each symbol; a frequency synchronization unit estimating the frequency error information based on the autocorrelation values for each reception symbol and the SOF; and an SNR estimation unit estimating an SNR (Signal to Noise Ratio) based on the autocorrelation values for each symbol and the SOF.
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申请公布号 |
US2010138878(A1) |
申请公布日期 |
2010.06.03 |
申请号 |
US20090629522 |
申请日期 |
2009.12.02 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
KIM PAN SOO;RYU JOON GYU;CHANG DAE IG;LEE HO JIN;SUNWOO MYUNG HOON;CHOI JIN KYU |
分类号 |
H04N7/20 |
主分类号 |
H04N7/20 |
代理机构 |
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