JP2002185406A - 自由空間光通信システム内で通信信号を自動追跡するための方法および装置 - Google Patents
自由空間光通信システム内で通信信号を自動追跡するための方法および装置Info
- Publication number
- JP2002185406A JP2002185406A JP2001309303A JP2001309303A JP2002185406A JP 2002185406 A JP2002185406 A JP 2002185406A JP 2001309303 A JP2001309303 A JP 2001309303A JP 2001309303 A JP2001309303 A JP 2001309303A JP 2002185406 A JP2002185406 A JP 2002185406A
- Authority
- JP
- Japan
- Prior art keywords
- telescope
- optical fiber
- receiving
- signal
- dithering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004891 communication Methods 0.000 title claims abstract description 50
- 230000003287 optical effect Effects 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims description 40
- 239000013307 optical fiber Substances 0.000 claims abstract description 121
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 230000004044 response Effects 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims description 13
- 230000007423 decrease Effects 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 4
- 230000008602 contraction Effects 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 19
- 230000009467 reduction Effects 0.000 description 6
- 238000012937 correction Methods 0.000 description 4
- 230000010363 phase shift Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003534 oscillatory effect Effects 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
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/112—Line-of-sight transmission over an extended range
- H04B10/1121—One-way transmission
-
- 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
- H04B10/118—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum specially adapted for satellite communication
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Optical Communication System (AREA)
- Telescopes (AREA)
- Lenses (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68081200A | 2000-10-05 | 2000-10-05 | |
| US09/680812 | 2000-10-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002185406A true JP2002185406A (ja) | 2002-06-28 |
| JP2002185406A5 JP2002185406A5 (enExample) | 2005-05-19 |
Family
ID=24732616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001309303A Withdrawn JP2002185406A (ja) | 2000-10-05 | 2001-10-05 | 自由空間光通信システム内で通信信号を自動追跡するための方法および装置 |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1154591B1 (enExample) |
| JP (1) | JP2002185406A (enExample) |
| CN (1) | CN1348264A (enExample) |
| CA (1) | CA2357918C (enExample) |
| DE (1) | DE60100824T2 (enExample) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030034432A1 (en) * | 2001-06-29 | 2003-02-20 | Presby Herman Melvin | Method and apparatus for the correction of optical signal wave front distortion within a free-space optical communication system |
| US20030001073A1 (en) * | 2001-06-29 | 2003-01-02 | Presby Herman Melvin | Method and apparatus for the correction of optical signal wave front distortion within a free-space optical communication system |
| CN101729142B (zh) * | 2009-12-04 | 2012-06-20 | 南京大学 | 一种fso系统中接收功率自动控制的方法 |
| CN101895342B (zh) * | 2010-06-24 | 2013-08-14 | 西安电子科技大学 | 用于快速移动自由空间光通信系统的光学智能天线 |
| CN102075243A (zh) * | 2010-12-28 | 2011-05-25 | 哈尔滨工业大学 | 激光通信链路光束的误差探测装置及控制方法 |
| CN103227678B (zh) * | 2013-03-28 | 2015-09-23 | 上海卫星工程研究所 | 直接利用太阳x射线的空间通信系统 |
| US9729234B2 (en) * | 2015-06-22 | 2017-08-08 | The Boeing Company | Free space optical communications network with bent pipe channel and pilot channel |
| US10419793B2 (en) | 2015-11-30 | 2019-09-17 | At&T Intellectual Property I, L.P. | Method and apparatus for determining obstructions based on satellite receive signals |
| DE102017127813B4 (de) | 2017-11-24 | 2025-09-18 | Tesat-Spacecom Gmbh & Co. Kg | Kommunikationsplattform und Kommunikationssystem nebst zugehörigem Verfahren zur Strahlausrichtung in unidirektionalen optischen Kommunikationssystemen |
| US11888517B2 (en) | 2019-04-25 | 2024-01-30 | Sew-Eurodrive Gmbh & Co. Kg | Method for a data transmission between a first and a second module and system including mobile parts for carrying out the method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3497697A (en) * | 1967-11-01 | 1970-02-24 | Hughes Aircraft Co | Local oscillator reference tracking system (lorts) |
| US4960315A (en) * | 1989-05-19 | 1990-10-02 | At&T Bell Laboratories | Atmosphric optical communication link |
| US5347387A (en) * | 1992-03-24 | 1994-09-13 | Rice Robert C | Self-aligning optical transceiver |
| US6016212A (en) * | 1997-04-30 | 2000-01-18 | At&T Corp | Optical receiver and demultiplexer for free-space wavelength division multiplexing communications systems |
-
2001
- 2001-04-17 DE DE2001600824 patent/DE60100824T2/de not_active Expired - Lifetime
- 2001-04-17 EP EP20010303494 patent/EP1154591B1/en not_active Expired - Lifetime
- 2001-09-28 CA CA 2357918 patent/CA2357918C/en not_active Expired - Fee Related
- 2001-09-29 CN CN 01135330 patent/CN1348264A/zh active Pending
- 2001-10-05 JP JP2001309303A patent/JP2002185406A/ja not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN1348264A (zh) | 2002-05-08 |
| CA2357918C (en) | 2005-08-09 |
| EP1154591A3 (en) | 2001-12-12 |
| EP1154591A2 (en) | 2001-11-14 |
| EP1154591B1 (en) | 2003-09-24 |
| DE60100824D1 (de) | 2003-10-30 |
| DE60100824T2 (de) | 2004-07-01 |
| CA2357918A1 (en) | 2002-04-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040715 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040715 |
|
| A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20060130 |