CN104579466A - Underwater communication method - Google Patents
Underwater communication method Download PDFInfo
- Publication number
- CN104579466A CN104579466A CN201310526077.8A CN201310526077A CN104579466A CN 104579466 A CN104579466 A CN 104579466A CN 201310526077 A CN201310526077 A CN 201310526077A CN 104579466 A CN104579466 A CN 104579466A
- Authority
- CN
- China
- Prior art keywords
- signal
- module
- receiving
- laser
- transmitting
- 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.)
- Pending
Links
Landscapes
- Optical Communication System (AREA)
Abstract
The invention discloses an underwater communication method which comprises the following steps: receiving an information source signal required to be transmitted by a user through a signal receiving module at a signal transmitting terminal; transmitting the information source signal to a signal encoding encryption module through the signal receiving module, and performing encoding encryption processing on the signal; modulating the encrypted signal through a signal modulating module, and subsequently transmitting to a laser signal transmitting module; encoding the modulated signal through the laser signal transmitting module, and transmitting to a receiving terminal through a transmitting antenna; after the encrypted laser signal is received at the receiving terminal through a receiving antenna, converting the encrypted laser signal into an electric signal through a photovoltaic conversion module; demodulating the received converted electric signal through a signal demodulating module, decoding the demodulated signal through the signal demodulating module, and reading the information of the signal. By adopting the underwater communication method, the signal is effectively prevented from loss to cause causing secret leakage, and the decoding fault rate of the signal is effectively reduced.
Description
Technical field
The invention belongs to subsurface communication technical field, relate to a kind of subsurface communication method specifically.
Background technology
Along with the continuous innovation development of the communication technology, while the continuous renewal replacement of communicating landline device, equipment, for can the time underwater data transmission subsurface communication technique device have also been obtained significant progress, subsurface communication technology has become the mankind and has been engaged in Activities of Ocean, and even between land-land, data communication exchanges an indispensable part.
Now conventional underwater communications system has the feature such as long transmission distance, dependable performance, mainly comprise: underwater acoustic communication system, undersea optical communications system, utilize electromagnetic radio-frequency to realize the communication system of exchanges data, but all there is certain defect in above-mentioned communication system: although underwater acoustic communication system technology maturation, of many uses, but this type systematic is subject to the impact of wave and offshore installations noise, and the propagation rate of sound in water is not high; Undersea optical communications system is then subject to absorption, the heat dissipation characteristics impact of water, and interference free performance is poor; Utilize electromagnetic radio-frequency to realize the decay of communication system due to electromagnetic radio-frequency of exchanges data, its transmission range is restricted.
Summary of the invention
In view of the defect that prior art exists, the object of the invention is to provide a kind of subsurface communication method based on laser communication, the method can realize long transmission distance, transmission rate is high and can realize the features such as point-to-point communication.
To achieve these goals, technical scheme of the present invention:
A kind of subsurface communication method, is characterized in that:
I, signal receiving module is utilized to receive the source signal sent needed for user at signal transmitting terminal;
Source signal is sent to Signal coding encrypting module and carries out coding encrypting process to signal by II, signal receiving module;
Signal after III, encryption delivers to laser signal transmitter module after the modulation of signal madulation module;
IV, laser signal transmitter module to modulation after signal compiling after by transmission antennas transmit to receiving terminal;
V, receiving terminal convert the signal of telecommunication to by photoelectric conversion module after receiving the laser signal of encryption by reception antenna;
VI, signal receiving module carry out signal receiving after receiving the signal of telecommunication after conversion, and the signal after demodulation reads signal message after being decoded by signal decoding module decrypts.
Further, described method is receiving the laser signal of described laser signal transmitter module compiling, uses channel selection block, after the preset signals channel selected according to user, then by transmission antennas transmit to receiving terminal.
Further, described method is after photoelectric conversion module carries out opto-electronic conversion to signal, and the signal equalization noise reduction module of use carries out balanced noise reduction process to after the signal of telecommunication.
Beneficial effect of the present invention: the present invention is encrypted source signal by encryption technology, the loss of effective anti-stop signal is divulged a secret; The preset signals channel fixed point that channel selection block can be selected according to user is simultaneously launched, and purpose is strong; In view of the uncertainty of underwater environment and the problem such as frequency hopping, decoding error of signal, in the balanced noise reduction module of signal receiving unit signalization, balanced noise reduction process is carried out to the signal of telecommunication of opto-electronic conversion, reduces the decoding error rate of signal.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a kind of subsurface communication method of the present invention;
Fig. 2 is the schematic flow sheet of a kind of subsurface communication method of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is further elaborated.
Subsurface communication method as shown in Figure 1, comprises
I, signal receiving module is utilized to receive the source signal sent needed for user at signal transmitting terminal;
Source signal is sent to Signal coding encrypting module and carries out coding encrypting process to signal by II, signal receiving module;
Signal after III, encryption delivers to laser signal transmitter module after the modulation of signal madulation module;
IV, laser signal transmitter module to modulation after signal compiling after by transmission antennas transmit to receiving terminal;
V, receiving terminal convert the signal of telecommunication to by photoelectric conversion module after receiving the laser signal of encryption by reception antenna;
VI, signal receiving module carry out signal receiving after receiving the signal of telecommunication after conversion, and the signal after demodulation reads signal message after being decoded by signal decoding module decrypts.
In view of the transmit demand of channel of user is different, at described signal transmitter unit, channel selection block is set, for receiving the laser signal of described laser signal transmitter module compiling, the preset signals channel selected according to user, is gone out by transmission antennas transmit; In view of the complexity of communication environment and the various situation of influencing factor, the problem of dtmf distortion DTMF of decoding is exported in order to reduce signal, in the balanced noise reduction module of described signal receiving unit signalization, the signal of telecommunication for changing for photoelectric conversion module carries out balanced noise reduction process, improves Signal transmissions reliability.
Subsurface communication method as shown in Figure 2, comprises
I, signal receiving module is utilized to receive the source signal sent needed for user at signal transmitting terminal;
Source signal is sent to Signal coding encrypting module and carries out coding encrypting process to signal by II, signal receiving module;
Signal after III, encryption delivers to laser signal transmitter module after the modulation of signal madulation module;
IV, laser signal transmitter module, to after the signal compiling after modulation, use channel selection block, after the preset signals channel selected according to user, then by transmission antennas transmit to receiving terminal;
V, receiving terminal convert the signal of telecommunication to by photoelectric conversion module after receiving the laser signal of encryption by reception antenna;
After VI, photoelectric conversion module carry out opto-electronic conversion to signal, the signal equalization noise reduction module of use carries out balanced noise reduction process to after the signal of telecommunication;
VII, signal receiving module carry out signal receiving after receiving the signal of balanced noise reduction process, and the signal after demodulation reads signal message after being decoded by signal decoding module decrypts.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (3)
1. a subsurface communication method, is characterized in that:
I, signal receiving module is utilized to receive the source signal sent needed for user at signal transmitting terminal;
Source signal is sent to Signal coding encrypting module and carries out coding encrypting process to signal by II, signal receiving module;
Signal after III, encryption delivers to laser signal transmitter module after the modulation of signal madulation module;
IV, laser signal transmitter module to modulation after signal compiling after by transmission antennas transmit to receiving terminal;
V, receiving terminal convert the signal of telecommunication to by photoelectric conversion module after receiving the laser signal of encryption by reception antenna;
VI, signal receiving module carry out signal receiving after receiving the signal of telecommunication after conversion, and the signal after demodulation reads signal message after being decoded by signal decoding module decrypts.
2. subsurface communication method according to claim 1, it is characterized in that: described method is receiving the laser signal of described laser signal transmitter module compiling, use channel selection block, after the preset signals channel selected according to user, then by transmission antennas transmit to receiving terminal.
3. subsurface communication method according to claim 1, is characterized in that: described method is after photoelectric conversion module carries out opto-electronic conversion to signal, and the signal equalization noise reduction module of use carries out balanced noise reduction process to after the signal of telecommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310526077.8A CN104579466A (en) | 2013-10-29 | 2013-10-29 | Underwater communication method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310526077.8A CN104579466A (en) | 2013-10-29 | 2013-10-29 | Underwater communication method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104579466A true CN104579466A (en) | 2015-04-29 |
Family
ID=53094785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310526077.8A Pending CN104579466A (en) | 2013-10-29 | 2013-10-29 | Underwater communication method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104579466A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111033931A (en) * | 2017-07-27 | 2020-04-17 | 莱昂智能有限公司 | Transmission device, data acquisition device, system comprising temperature adjustment device and data acquisition device, battery system, and status data transmission method |
| CN112491481A (en) * | 2020-12-08 | 2021-03-12 | 华中科技大学 | Strong anti-interference underwater communication method, transmitting end and receiving end |
| CN113141214A (en) * | 2021-04-06 | 2021-07-20 | 中山大学 | Deep learning-based underwater optical communication misalignment robust blind receiver design method |
-
2013
- 2013-10-29 CN CN201310526077.8A patent/CN104579466A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111033931A (en) * | 2017-07-27 | 2020-04-17 | 莱昂智能有限公司 | Transmission device, data acquisition device, system comprising temperature adjustment device and data acquisition device, battery system, and status data transmission method |
| CN111033931B (en) * | 2017-07-27 | 2023-08-08 | 莱昂智能有限公司 | Transmission device, data acquisition device, system, battery system, and status data transmission method |
| CN112491481A (en) * | 2020-12-08 | 2021-03-12 | 华中科技大学 | Strong anti-interference underwater communication method, transmitting end and receiving end |
| CN113141214A (en) * | 2021-04-06 | 2021-07-20 | 中山大学 | Deep learning-based underwater optical communication misalignment robust blind receiver design method |
| CN113141214B (en) * | 2021-04-06 | 2022-03-15 | 中山大学 | Deep learning-based underwater optical communication misalignment robust blind receiver design method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105790818A (en) | Physical layer secure transmission method for resisting information eavesdropping of eavesdropping node | |
| JP6483920B2 (en) | Wireless communication system and communication method | |
| CN102355440A (en) | Underwater acoustic communication method based on very minimum chirp keying modulation | |
| CN101228719A (en) | Underwater communications system | |
| KR101638916B1 (en) | The apparatus and method for relaying signal in a mobile communication system | |
| US9774479B2 (en) | Communicating data using backscatter modulation | |
| CN112260757B (en) | Mechanical-solid interconnection all-optical underwater communication method | |
| CN104579466A (en) | Underwater communication method | |
| US9203555B2 (en) | Optimum signal constellation design and mapping for few-mode fiber based LDPC-coded CO-OFDM | |
| CN104579500A (en) | Underwater communication system | |
| CN107171726A (en) | Short-distance wireless information transferring method and mobile terminal | |
| Islam et al. | An adaptive DPPM for efficient and robust visible light communication across the air-water interface | |
| US9231705B1 (en) | Communication system with QAM modulation | |
| CN102457459B (en) | A kind of complex carrier modulation method, Apparatus and system | |
| Nasri et al. | Efficient encoding and decoding schemes for wireless underwater communication systems | |
| CN202663409U (en) | Submarine light emitting diode (LED) communication system based on universal serial bus (USB) interface | |
| CN106559135A (en) | Based on the information transceiving method of visible light communication, R-T unit and its system | |
| CN218499281U (en) | Wireless relay microwave communication system between base stations | |
| CN112383364B (en) | Acoustic-electric double-carrier mutual-check underwater communication method | |
| TWI656745B (en) | Non-orthogonal multiple access data transmission method and transmission device | |
| CN114629551B (en) | Electro-optical dual-carrier mutual-calibration underwater communication method | |
| CN104539394A (en) | Pattern time delay coding underwater acoustic communication method based on parameter array | |
| Ch et al. | Design and Evaluation of IDMA-OFDM Simulink Model for Underwater Communication | |
| CN112260769B (en) | Acousto-optic double-carrier mutual-check underwater communication method | |
| CN221081307U (en) | Underwater bidirectional communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |