NO309630B1 - Mellomfrekvenssignalkombineringsinnretning for å minimalisere BER i rommet eller en digital vinkel-diversity radiomottager - Google Patents
Mellomfrekvenssignalkombineringsinnretning for å minimalisere BER i rommet eller en digital vinkel-diversity radiomottager Download PDFInfo
- Publication number
- NO309630B1 NO309630B1 NO951279A NO951279A NO309630B1 NO 309630 B1 NO309630 B1 NO 309630B1 NO 951279 A NO951279 A NO 951279A NO 951279 A NO951279 A NO 951279A NO 309630 B1 NO309630 B1 NO 309630B1
- Authority
- NO
- Norway
- Prior art keywords
- signal
- ber
- signals
- combiner
- frequency
- Prior art date
Links
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- 230000002238 attenuated effect Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 238000005562 fading Methods 0.000 description 46
- 238000012360 testing method Methods 0.000 description 34
- 230000003247 decreasing effect Effects 0.000 description 13
- 101100127690 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FAA2 gene Proteins 0.000 description 12
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- 208000009989 Posterior Leukoencephalopathy Syndrome Diseases 0.000 description 9
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- 230000005540 biological transmission Effects 0.000 description 2
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- 230000001419 dependent effect Effects 0.000 description 2
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- 230000000007 visual effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
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- 238000012790 confirmation Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007620 mathematical function Methods 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- JQQQEJZYKNGYBP-WXIWBVQFSA-N n-[4-[(e)-(carbamothioylhydrazinylidene)methyl]phenyl]acetamide;pyridine-4-carbohydrazide Chemical compound NNC(=O)C1=CC=NC=C1.CC(=O)NC1=CC=C(\C=N\NC(N)=S)C=C1 JQQQEJZYKNGYBP-WXIWBVQFSA-N 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0848—Joint weighting
- H04B7/0851—Joint weighting using training sequences or error signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/084—Equal gain combining, only phase adjustments
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Circuits Of Receivers In General (AREA)
- Mobile Radio Communication Systems (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Noise Elimination (AREA)
- Transceivers (AREA)
- Transmitters (AREA)
- Structure Of Receivers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI922347A IT1255862B (it) | 1992-10-14 | 1992-10-14 | Combinatore a strategia di combinazione mista per ricevitori operanti in ponti radio digitali ad alta capacita' protetti con diversita' di spazio o d'angolo |
| PCT/EP1993/002758 WO1994009573A1 (en) | 1992-10-14 | 1993-10-08 | If signal combiner for minimizing the ber in a space or angle diversity digital radio receiver |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO951279D0 NO951279D0 (no) | 1995-04-03 |
| NO951279L NO951279L (no) | 1995-04-03 |
| NO309630B1 true NO309630B1 (no) | 2001-02-26 |
Family
ID=11364103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO951279A NO309630B1 (no) | 1992-10-14 | 1995-04-03 | Mellomfrekvenssignalkombineringsinnretning for å minimalisere BER i rommet eller en digital vinkel-diversity radiomottager |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US5668839A (de) |
| EP (1) | EP0664939B1 (de) |
| CN (1) | CN1087765A (de) |
| AT (1) | ATE146920T1 (de) |
| AU (1) | AU677242B2 (de) |
| BR (1) | BR9307233A (de) |
| DE (1) | DE69306970T2 (de) |
| DK (1) | DK0664939T3 (de) |
| ES (1) | ES2096333T3 (de) |
| FI (1) | FI951797A0 (de) |
| GR (1) | GR3022861T3 (de) |
| IT (1) | IT1255862B (de) |
| NO (1) | NO309630B1 (de) |
| WO (1) | WO1994009573A1 (de) |
| ZA (1) | ZA937508B (de) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3576676B2 (ja) * | 1996-01-31 | 2004-10-13 | 三菱電機株式会社 | ダイバーシチ受信機 |
| AU695952B2 (en) * | 1996-03-05 | 1998-08-27 | Kabushiki Kaisha Toshiba | Radio communications apparatus with a combining diversity |
| DE19837426C2 (de) * | 1998-08-18 | 2001-12-06 | Fraunhofer Ges Forschung | Verfahren und Vorrichtung zum Senden von Informationssymbolen mittels einer Mehrzahl von Trägern und Verfahren und Vorrichtung zum Empfangen von Informationssymbolen |
| US6560299B1 (en) * | 1999-07-30 | 2003-05-06 | Christopher H Strolle | Diversity receiver with joint signal processing |
| IT1318275B1 (it) * | 2000-07-28 | 2003-07-28 | Siemens Inf & Comm Networks | Procedimento di ottimizzazione della combinazione dei segnali diricezione nei radioricevitori in diversita' di spazio sulla base della |
| IT1318274B1 (it) * | 2000-07-28 | 2003-07-28 | Siemens Inf & Comm Networks | Procedimento per automatizzare l'equalizzazione preliminare deisegnali combinati nei radioricevitori in diversita' di spazio. |
| US20070259636A1 (en) * | 2000-10-27 | 2007-11-08 | Fisher Daniel E | RF bridge for an angle rate interferometer |
| US6694131B1 (en) * | 2001-02-21 | 2004-02-17 | Mitsubishi Electric Corporation | Method and apparatus for adaptive image rejection |
| JP3933953B2 (ja) * | 2002-02-08 | 2007-06-20 | パイオニア株式会社 | 複数の局部発振周波数を用いる受信機のａｇｃ回路 |
| US6871304B2 (en) * | 2002-08-12 | 2005-03-22 | Nortel Networks Limited | Method and apparatus for adjusting receiver voltage threshold and phase sampling point using FEC counts |
| KR100548321B1 (ko) * | 2003-01-07 | 2006-02-02 | 엘지전자 주식회사 | 동위상 합성 다이버시티 수신 장치 및 방법 |
| EP2547004A3 (de) * | 2003-07-21 | 2013-04-10 | Broadcom Corporation | Gewichtserzeugungsverfahren für Kommunikationssysteme mit mehreren Antennen unter Verwendung einer HF-gestützten und Basisband-signalgewichtung und Kombinierung auf der Basis einer Minimalbitfehlerrate |
| US6885322B2 (en) * | 2003-08-05 | 2005-04-26 | Motorola, Inc. | Apparatus and method for transmitter phase shift compensation |
| GB0508205D0 (en) * | 2005-04-22 | 2005-06-01 | Ttp Communications Ltd | Assessing the performance of radio devices |
| US8862081B2 (en) * | 2007-01-19 | 2014-10-14 | Wi-Lan, Inc. | Transceiver with receive path performance diversity and combiner with jammer detect feedback |
| US8570920B2 (en) * | 2010-09-30 | 2013-10-29 | Aviat U.S., Inc. | Systems and methods for combining signals from multiple active wireless receivers |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4326294A (en) * | 1979-02-13 | 1982-04-20 | Nippon Telegraph & Telephone Public Corporation | Space diversity reception system having compensation means of multipath effect |
| US4261056A (en) * | 1979-07-16 | 1981-04-07 | Bell Telephone Laboratories, Incorporated | Equalizing signal combiner |
| US4354276A (en) * | 1980-09-24 | 1982-10-12 | Bell Telephone Laboratories, Incorporated | Equalizing signal combiner |
-
1992
- 1992-10-14 IT ITMI922347A patent/IT1255862B/it active IP Right Grant
-
1993
- 1993-10-08 DE DE69306970T patent/DE69306970T2/de not_active Expired - Fee Related
- 1993-10-08 AT AT93922923T patent/ATE146920T1/de not_active IP Right Cessation
- 1993-10-08 US US08/416,906 patent/US5668839A/en not_active Expired - Fee Related
- 1993-10-08 WO PCT/EP1993/002758 patent/WO1994009573A1/en active IP Right Grant
- 1993-10-08 DK DK93922923.3T patent/DK0664939T3/da active
- 1993-10-08 AU AU51762/93A patent/AU677242B2/en not_active Ceased
- 1993-10-08 EP EP93922923A patent/EP0664939B1/de not_active Expired - Lifetime
- 1993-10-08 BR BR9307233-3A patent/BR9307233A/pt not_active Application Discontinuation
- 1993-10-08 ES ES93922923T patent/ES2096333T3/es not_active Expired - Lifetime
- 1993-10-11 ZA ZA937508A patent/ZA937508B/xx unknown
- 1993-10-14 CN CN93118472A patent/CN1087765A/zh active Pending
-
1995
- 1995-04-03 NO NO951279A patent/NO309630B1/no unknown
- 1995-04-13 FI FI951797A patent/FI951797A0/fi not_active Application Discontinuation
-
1997
- 1997-03-18 GR GR970400536T patent/GR3022861T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0664939B1 (de) | 1996-12-27 |
| ATE146920T1 (de) | 1997-01-15 |
| NO951279D0 (no) | 1995-04-03 |
| CN1087765A (zh) | 1994-06-08 |
| ES2096333T3 (es) | 1997-03-01 |
| ITMI922347A0 (it) | 1992-10-14 |
| FI951797A (fi) | 1995-04-13 |
| DE69306970T2 (de) | 1997-06-12 |
| NO951279L (no) | 1995-04-03 |
| GR3022861T3 (en) | 1997-06-30 |
| US5668839A (en) | 1997-09-16 |
| ITMI922347A1 (it) | 1994-04-14 |
| IT1255862B (it) | 1995-11-17 |
| ZA937508B (en) | 1994-05-03 |
| AU677242B2 (en) | 1997-04-17 |
| BR9307233A (pt) | 1999-10-13 |
| FI951797A0 (fi) | 1995-04-13 |
| EP0664939A1 (de) | 1995-08-02 |
| WO1994009573A1 (en) | 1994-04-28 |
| DE69306970D1 (de) | 1997-02-06 |
| DK0664939T3 (da) | 1997-03-10 |
| AU5176293A (en) | 1994-05-09 |
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