KR101000044B1 - 성능을 개선한 간섭신호 제거방법 - Google Patents
성능을 개선한 간섭신호 제거방법 Download PDFInfo
- Publication number
- KR101000044B1 KR101000044B1 KR1020080104767A KR20080104767A KR101000044B1 KR 101000044 B1 KR101000044 B1 KR 101000044B1 KR 1020080104767 A KR1020080104767 A KR 1020080104767A KR 20080104767 A KR20080104767 A KR 20080104767A KR 101000044 B1 KR101000044 B1 KR 101000044B1
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- Prior art keywords
- signal
- digital communication
- converter
- interference
- interference signal
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- 238000000034 method Methods 0.000 title claims description 3
- 238000004891 communication Methods 0.000 claims abstract description 48
- 230000003044 adaptive effect Effects 0.000 claims abstract description 11
- 230000002238 attenuated effect Effects 0.000 claims abstract description 5
- 230000010355 oscillation Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15564—Relay station antennae loop interference reduction
- H04B7/15585—Relay station antennae loop interference reduction by interference cancellation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Radio Relay Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Noise Elimination (AREA)
Abstract
Description
덧셈부가 A/D변환기로부터 입력되는 시간영역의 디지털 통신신호와 적응필터 채널추정부로부터 입력되는 추정신호를 합하여 간섭신호를 제거하고, 이를 출력하되, 상기 추정신호는, 대역통과필터부로부터 입력되는 디지털 통신 출력신호를 감쇠부가 증폭부의 높여진 이득만큼 감쇠한 후, 적응필터 채널추정부가 감쇠부로부터 입력되는 감쇠신호를 매개로 생성 및 출력되어지는 단계;
덧셈부에서 간섭신호가 제거된 디지털 통신신호를 증폭부가 이득을 높여 출력하는 단계;
대역통과필터부가 증폭부로부터 입력되는 증폭신호로부터 미리 설정된 주파수 대역만을 추출하여 출력하는 단계; 및
D/A변환기가 대역통과필터부로부터 입력되는 디지털 통신 출력신호를 아날로그 통신신호로 변환하여 외부로 출력하는 단계;
를 포함하는 간섭신호 제거방법이다.
Claims (1)
- A/D변환기(100)가 외부로부터 입력되는 아날로그 통신신호를 디지털 통신신호로 변환하는 단계;덧셈부(210)가 A/D변환기(100)로부터 입력되는 시간영역의 디지털 통신신호와 적응필터 채널추정부(250)로부터 입력되는 추정신호를 합하여 간섭신호를 제거하고, 이를 출력하되, 상기 추정신호는, 대역통과필터부(230)로부터 입력되는 디지털 통신 출력신호를 감쇠부(240)가 증폭부(220)의 높여진 이득만큼 감쇠한 후, 적응필터 채널추정부(250)가 감쇠부(240)로부터 입력되는 감쇠신호를 매개로 생성 및 출력되어지는 단계;덧셈부(210)에서 간섭신호가 제거된 디지털 통신신호를 증폭부(220)가 이득을 높여 출력하는 단계;대역통과필터부(230)가 증폭부(220)로부터 입력되는 증폭신호로부터 미리 설정된 주파수 대역만을 추출하여 출력하는 단계; 및D/A변환기(300)가 대역통과필터부(230)로부터 입력되는 디지털 통신 출력신호를 아날로그 통신신호로 변환하여 외부로 출력하는 단계;를 포함하는 것을 특징으로 하는 간섭신호 제거방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080104767A KR101000044B1 (ko) | 2008-10-24 | 2008-10-24 | 성능을 개선한 간섭신호 제거방법 |
Applications Claiming Priority (1)
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KR1020080104767A KR101000044B1 (ko) | 2008-10-24 | 2008-10-24 | 성능을 개선한 간섭신호 제거방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20100045700A KR20100045700A (ko) | 2010-05-04 |
KR101000044B1 true KR101000044B1 (ko) | 2010-12-10 |
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KR1020080104767A KR101000044B1 (ko) | 2008-10-24 | 2008-10-24 | 성능을 개선한 간섭신호 제거방법 |
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Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100746577B1 (ko) * | 2006-01-02 | 2007-08-06 | 최동식 | 간섭 제거형 무선 중계기 |
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- 2008-10-24 KR KR1020080104767A patent/KR101000044B1/ko not_active IP Right Cessation
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Publication number | Priority date | Publication date | Assignee | Title |
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KR100746577B1 (ko) * | 2006-01-02 | 2007-08-06 | 최동식 | 간섭 제거형 무선 중계기 |
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