发明申请
- 专利标题: Method For Selecting Optimal Beam And Apparatus For Receiving Digital Broadcasting Signal Using The Same
- 专利标题(中): 用于选择最佳光束的方法和用于接收数字广播信号的装置
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申请号: US11720323申请日: 2005-11-25
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公开(公告)号: US20080205537A1公开(公告)日: 2008-08-28
- 发明人: Ju-yeun Kim , Young-Su Kim , Jae-hwui Bae , Hyun Lee , Jong-soo Lim , Soo-In Lee
- 申请人: Ju-yeun Kim , Young-Su Kim , Jae-hwui Bae , Hyun Lee , Jong-soo Lim , Soo-In Lee
- 申请人地址: KR Daejon
- 专利权人: Electronics and Telecommunications Research Institute
- 当前专利权人: Electronics and Telecommunications Research Institute
- 当前专利权人地址: KR Daejon
- 优先权: KR10-2004-0098223 20041126
- 国际申请: PCT/KR05/03998 WO 20051125
- 主分类号: H04N7/015
- IPC分类号: H04N7/015
摘要:
There are provided a method for selecting an optimal beam to improve digital broadcasting receiving performance, and a digital broadcasting receiving apparatus using the same. The method includes the steps of: a) calculating a mainpath Signal to Multipath signal and Noise Ratio (SMNR) based on a channel impulse response for a plurality of beams which are formed according to steering directions from output signals of antennas, wherein the output signal of each antenna has different phase shift according to location of antenna element; b) selecting a predetermined number of beams having a high SMNR value by comparing the calculated SMNR value for respective beam; c) calculating a mainpath Signal to Dominant Multipath signal Ratio (SDMR) based on a channel impulse response corresponding to the selected beam; and d) selecting a beam output signal having the biggest SDMR value by comparing SDMR values calculated in selecting a predetermined number of beams.