등록
중계기 수신채널의 역채널 추정 장치 및 그 방법
- 발명자
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박성익, 김흥묵, 임종수, 이용태, 이수인, 박소라
- 출원번호
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12676883 (2008.05.06)
- 공개번호
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20100310023 (2010.12.09)
- 등록번호
- 8411801 (2013.04.02)
- 출원국
- 미국
- 협약과제
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07MR3800, OFDM 전송방식에서의 동일채널 RF 중계기술 개발,
이용태
- 초록
- Provided is an apparatus and method for estimating inverse channel of a repeater's receiving channel, which ensures stability and causality by generating a time-domain filter coefficient having information on an inverse channel of repeater's receiving channel from a signal transmitted from a main transmitter or another repeater. The apparatus includes: a channel estimator for estimating a channel established by a transmission path from a received signal; an inverse minimum phase filter coefficient generator for generating inverse channel of a minimum phase channel from the estimated channel, and converting the inverse channel of the minimum phase channel into a time-domain filter coefficient; an inverse group delay filter coefficient generator for generating a time-domain filter coefficient by using the estimated channel and the minimum phase channel; and a combiner for generating an inverse channel of a receiving channel in a time domain by combining the filter coefficient and the filter coefficient.
- 패밀리
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