BROWSE
Detail
Registered METHOD FOR SELECTING OPTIMAL BEAM AND APPARATUS FOR RECEIVING DIGITAL BROADCASTING SIGNAL USING THE SAME
이미지 확대
METHOD FOR SELECTING OPTIMAL BEAM AND APPARATUS FOR RECEIVING DIGITAL BROADCASTING SIGNAL USING THE SAME
- Inventors
- Kim Ju Yeun, Kim Young Su, Lim Jong Soo, Lee Hyun, Lee Soo In, Jae Hwui Bae
- Application No.
- 11720323 (2005.11.25)
- Publication No.
- 20080205537 (2008.08.28)
- Registration No.
- 7742538 (2010.06.22)
- Country
- UNITED STATES
- Project Code
- 04MR3100, Development of ATSC 8-VSB diversity receiving technology for mobile and fixed terrestrial DTV receiver, Lim Jong Soo
- Abstract
- 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.