ZA200409356B - Methods for transmitting and receiving laser signals, as well as transmitter and receiver which carry out said methods. - Google Patents
Methods for transmitting and receiving laser signals, as well as transmitter and receiver which carry out said methods. Download PDFInfo
- Publication number
- ZA200409356B ZA200409356B ZA200409356A ZA200409356A ZA200409356B ZA 200409356 B ZA200409356 B ZA 200409356B ZA 200409356 A ZA200409356 A ZA 200409356A ZA 200409356 A ZA200409356 A ZA 200409356A ZA 200409356 B ZA200409356 B ZA 200409356B
- Authority
- ZA
- South Africa
- Prior art keywords
- signal
- signals
- laser
- cos
- sin
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 63
- 238000011084 recovery Methods 0.000 claims description 6
- 239000000284 extract Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 7
- 230000010363 phase shift Effects 0.000 description 5
- 238000012937 correction Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000005693 optoelectronics Effects 0.000 description 2
- 108010014173 Factor X Proteins 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/693—Arrangements for optimizing the preamplifier in the receiver
- H04B10/6931—Automatic gain control of the preamplifier
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/112—Line-of-sight transmission over an extended range
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/504—Laser transmitters using direct modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/69—Electrical arrangements in the receiver
- H04B10/697—Arrangements for reducing noise and distortion
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Optical Communication System (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IT2002/000382 WO2003105373A1 (en) | 2002-06-10 | 2002-06-10 | Methods for transmitting and receiving laser signals, as well as transmitter and receiver which carry out said methods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200409356B true ZA200409356B (en) | 2005-05-19 |
Family
ID=29727215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200409356A ZA200409356B (en) | 2002-06-10 | 2004-11-19 | Methods for transmitting and receiving laser signals, as well as transmitter and receiver which carry out said methods. |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP1512235B1 (zh) |
| CN (1) | CN1659808A (zh) |
| AT (1) | ATE308166T1 (zh) |
| AU (2) | AU2002346293A1 (zh) |
| BR (1) | BR0311484A (zh) |
| CA (1) | CA2489144A1 (zh) |
| DE (1) | DE60302070T2 (zh) |
| IL (1) | IL165298A0 (zh) |
| WO (2) | WO2003105373A1 (zh) |
| ZA (1) | ZA200409356B (zh) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1758280A1 (en) | 2005-08-24 | 2007-02-28 | Interlemo Holding S.A. | Installation for conveying a first plurality of electrical signals carried by a first triaxial cable to a second triaxial cable |
| DE102008019066B4 (de) * | 2008-04-15 | 2010-04-29 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Verfahren zur atmosphärischen optischen Freiraumübertragung von digitalen Signalen und Empfänger für das Verfahren |
| CN101807955B (zh) * | 2009-02-12 | 2014-01-01 | 北京邮电大学 | I-q调制发射机和控制i-q路间相位偏置的方法 |
| US9077508B2 (en) * | 2012-11-15 | 2015-07-07 | Mitsubishi Electric Research Laboratories, Inc. | Adaptively coding and modulating signals transmitted via nonlinear channels |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5146359A (en) * | 1989-01-26 | 1992-09-08 | The Furukawa Electric Co., Ltd. | Double-stage phase-diversity receiver |
| EP0772314A3 (en) * | 1990-09-14 | 1997-09-03 | Fujitsu Ltd | Optical communication system with sub-carrier multiplexing |
| US5339184A (en) * | 1992-06-15 | 1994-08-16 | Gte Laboratories Incorporated | Fiber optic antenna remoting for multi-sector cell sites |
| EP0702867A1 (en) * | 1994-04-12 | 1996-03-27 | Koninklijke Philips Electronics N.V. | Heterodyne receiver having low intermediate frequency |
-
2002
- 2002-06-10 AU AU2002346293A patent/AU2002346293A1/en not_active Withdrawn
- 2002-06-10 WO PCT/IT2002/000382 patent/WO2003105373A1/en not_active Application Discontinuation
-
2003
- 2003-06-10 CN CN038133342A patent/CN1659808A/zh active Pending
- 2003-06-10 BR BR0311484-8A patent/BR0311484A/pt not_active IP Right Cessation
- 2003-06-10 WO PCT/IB2003/002191 patent/WO2003105372A1/en not_active Application Discontinuation
- 2003-06-10 DE DE60302070T patent/DE60302070T2/de not_active Expired - Fee Related
- 2003-06-10 IL IL16529803A patent/IL165298A0/xx unknown
- 2003-06-10 CA CA002489144A patent/CA2489144A1/en not_active Abandoned
- 2003-06-10 AU AU2003236948A patent/AU2003236948A1/en not_active Abandoned
- 2003-06-10 AT AT03735865T patent/ATE308166T1/de not_active IP Right Cessation
- 2003-06-10 EP EP03735865A patent/EP1512235B1/en not_active Expired - Lifetime
-
2004
- 2004-11-19 ZA ZA200409356A patent/ZA200409356B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003236948A1 (en) | 2003-12-22 |
| WO2003105373A1 (en) | 2003-12-18 |
| WO2003105372A1 (en) | 2003-12-18 |
| EP1512235B1 (en) | 2005-10-26 |
| BR0311484A (pt) | 2005-03-15 |
| CN1659808A (zh) | 2005-08-24 |
| ATE308166T1 (de) | 2005-11-15 |
| DE60302070T2 (de) | 2006-07-13 |
| IL165298A0 (en) | 2005-12-18 |
| DE60302070D1 (de) | 2005-12-01 |
| CA2489144A1 (en) | 2003-12-18 |
| AU2002346293A1 (en) | 2003-12-22 |
| EP1512235A1 (en) | 2005-03-09 |
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