WO2021109453A1 - 一种新型高鲁棒水下光通信系统 - Google Patents
一种新型高鲁棒水下光通信系统 Download PDFInfo
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- WO2021109453A1 WO2021109453A1 PCT/CN2020/089614 CN2020089614W WO2021109453A1 WO 2021109453 A1 WO2021109453 A1 WO 2021109453A1 CN 2020089614 W CN2020089614 W CN 2020089614W WO 2021109453 A1 WO2021109453 A1 WO 2021109453A1
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- 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
- H04B10/61—Coherent receivers
- H04B10/615—Arrangements affecting the optical part of the receiver
- H04B10/6151—Arrangements affecting the optical part of the receiver comprising a polarization controller at the receiver's input stage
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
- H04B13/02—Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy
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- 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
-
- 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
- H04B10/502—LED transmitters
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- 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
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- 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
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- 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
- H04B10/61—Coherent receivers
- H04B10/616—Details of the electronic signal processing in coherent optical receivers
- H04B10/6163—Compensation of non-linear effects in the fiber optic link, e.g. self-phase modulation [SPM], cross-phase modulation [XPM], four wave mixing [FWM]
Abstract
Description
Claims (10)
- 一种新型高鲁棒水下光通信系统,其特征在于,该新型高鲁棒水下光通信系统分为发送模块和接收模块;所述的发送模块包括镜片组(1)、光接收器(2)、差分放大器(3)、比较器(4)和嵌入式微控制器(5);在进行信号接收时,经过环境信道的光信号经过镜片组(1),镜片组(1)将基准光和信号光分开,两种光分别进入对应接收器2,接收器2将光模拟信号转化为电模拟信号,两路电模拟信号输入到差分放大器(3)上,将信号光与基准光进行差分放大后,差分信号送入到比较器(4)中,比较器(4)将模拟信号转化为数字信号,数字信号输入到嵌入式微控制器(5)中,最终经过解码获得目标数据;所述的接收模块包括嵌入式微控制器(5)、信号反相器(6)、大功率LED调制电路(7)、大功率LED(8)和镜片组(1);系统进行信号发送时,嵌入式微控制器(5)将所要发送的信息分组,然后将分组的信息进行编码,编码后的信息送入到信号反相器(6)中,信号反相器(6)分别将正相信号和反相信号输出到两个对应的大功率LED调制电路(7)上,大功率LED调制电路(7)调制大功率LED(8),将数字信号转化为光信号,大功率LED(8)发射出的光经过镜片组(1),将全向信号光转化为线偏振光再转化为圆偏振光,发射到环境中去。
- 根据权利要求1所述的新型高鲁棒水下光通信系统,其特征在于,所述的镜片组(1)包括偏振片(9)和四分之一波片(10);在进行信号发送时,信号光先通过偏振片(9)将全向光转换为线偏振光,再经过四分之一波片(10)将线偏振光转化为圆偏振光;在进行信号接收时带信号的圆偏振光经过四分之一波片(10)将圆偏振光转化为线偏振光,转化后的光经过偏振片(9),偏振片(9)将环境光和正交信道的信号滤除,保留本信道光信号。
- 根据权利要求1或2所述的新型高鲁棒水下光通信系统,其特征在于,所述的光接收器(2)用于接收400~760nm波段的可见光,并将其转换为模拟量。
- 根据权利要求1或2所述的新型高鲁棒水下光通信系统,其特征在于,所述的嵌入式微控制器(5),在发送模式中,将数据进行编码,将数字量输入到信号反相器(6)中,信号反相器(6)输出正相和反相信号;在接收模式中,嵌入式微控制器(5)接收比较器(4)传来的数字信号,并将其解码获得目标数据。
- 根据权利要求3所述的新型高鲁棒水下光通信系统,其特征在于,所述的嵌入式微控制器(5),在发送模式中,将数据进行编码,将数字量输入到信号反相器(6)中,信号反相器(6)输出正相和反相信号;在接收模式中,嵌入式微控制器(5)接收比较器(4)传来的数字信号,并将其解码获得目标数据。
- 根据权利要求1、2或5所述的新型高鲁棒水下光通信系统,其特征在于,所述的大功率LED(8)的输出功率30W,满足10MHz的开关速率。
- 根据权利要求3所述的新型高鲁棒水下光通信系统,其特征在于,所述的大功率LED(8)的输出功率30W,满足10MHz的开关速率。
- 根据权利要求4所述的新型高鲁棒水下光通信系统,其特征在于,所述的大功率LED(8)的输出功率30W,满足10MHz的开关速率。
- 根据权利要求1、2、5、7或8所述的新型高鲁棒水下光通信系统,其特征在于,所述的编码采用差分方式,进行信号干扰去除,进行编码的两个信道分别进行顺逆时针信号进行编码,两个信号振幅相等,相位相反。
- 根据权利要求6所述的新型高鲁棒水下光通信系统,其特征在于,所述的编码采用差分方式,进行信号干扰去除,进行编码的两个信道分别进行顺逆时针信号进行编码,两个信号振幅相等,相位相反。
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US17/257,793 US11245476B2 (en) | 2019-12-02 | 2020-05-11 | Highly robust underwater optical communication system |
AU2020323951A AU2020323951B2 (en) | 2019-12-02 | 2020-05-11 | Novel highly robust underwater optical communication system |
JP2021500465A JP2022503448A (ja) | 2019-12-02 | 2020-05-11 | 新型高ロバスト性の水中光通信システム |
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CN201911213804.9A CN110995357A (zh) | 2019-12-02 | 2019-12-02 | 一种新型高鲁棒水下光通信系统 |
CN201911213804.9 | 2019-12-02 |
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JP (1) | JP2022503448A (zh) |
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Cited By (1)
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CN114157371A (zh) * | 2021-11-15 | 2022-03-08 | 西北工业大学 | 一种低功耗水下数字语音通信方法及通信系统 |
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CN110995357A (zh) | 2019-12-02 | 2020-04-10 | 大连理工大学 | 一种新型高鲁棒水下光通信系统 |
CN112422190B (zh) * | 2020-11-18 | 2022-02-22 | 中国海洋大学 | 偏振-ppm联合调制的水下光通信方法、系统、终端 |
CN114866152B (zh) * | 2022-04-14 | 2024-02-02 | 长春理工大学 | 一种水下无线光通信发射终端、光通信接收终端以及一种水下无线光通信装置、方法 |
CN114665960B (zh) * | 2022-05-03 | 2023-12-22 | 大连理工大学 | 一种抗干扰的水下可见光通信系统 |
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US20210336705A1 (en) | 2021-10-28 |
JP2022503448A (ja) | 2022-01-12 |
AU2020323951B2 (en) | 2022-03-31 |
CN110995357A (zh) | 2020-04-10 |
US11245476B2 (en) | 2022-02-08 |
AU2020323951A1 (en) | 2021-06-17 |
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