CN116760419A - Frequency point signal transmission method and system - Google Patents
Frequency point signal transmission method and system Download PDFInfo
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- CN116760419A CN116760419A CN202310902689.6A CN202310902689A CN116760419A CN 116760419 A CN116760419 A CN 116760419A CN 202310902689 A CN202310902689 A CN 202310902689A CN 116760419 A CN116760419 A CN 116760419A
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- 230000008054 signal transmission Effects 0.000 title claims abstract description 16
- 230000001427 coherent effect Effects 0.000 claims abstract description 17
- 238000013507 mapping Methods 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 238000013139 quantization Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 abstract description 37
- 238000004891 communication Methods 0.000 abstract description 21
- 239000013307 optical fiber Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 16
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- 238000004590 computer program Methods 0.000 description 7
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- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 4
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
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Abstract
The application relates to the technical field of optical fiber communication, in particular to a frequency point signal transmission method and a system, wherein the method comprises the following steps: acquiring an analog signal with preset frequency, and modulating the analog signal to obtain target data; performing coherent demodulation mapping on the target data to output first data; and inputting the first data into a filter of a receiving end, and filtering the first data to obtain a target signal waveform. The application uses DSM modulation technique to generate and transmit the needed single frequency point signal by using digital signal at the signal generating transmitting end, thereby simplifying the whole unrepeatered transmission system architecture and reducing the complexity of the system structure. While enabling variable rate communication transmissions.
Description
Technical Field
The present application relates to the field of optical fiber communications technologies, and in particular, to a method and a system for transmitting a frequency point signal.
Background
The ultra-long span transmission system completes transmission of hundreds of kilometers without building a relay station, so that the stability and the safety of the transmission system are further improved, and the ultra-long span transmission system is very suitable for being applied to special scenes such as submarine communication, remote areas, communication in areas with severe environments and the like. Meanwhile, due to the lack of conventional active device equipment, the relay-free ultra-long span transmission reduces the maintenance of fault points and energy consumption, so that the operation and maintenance functions are stronger, the transmission system has the replacement stability, the network structure is optimized by the relay-free ultra-long span transmission, the service transmission of optical signals between the points is realized, and the transmission efficiency is improved. The relay-free ultra-long distance transmission is a modularized construction mode, and can be realized on the premise of minimally influencing the service when the service capacity is expanded and the service is upgraded. But the transmission rate of the general unrepeatered ultra-long span transmission is fixed, and the farther the transmission distance is, the lower the rate is. Therefore, a set of unrepeatered ultra-long span transmission system is used for communication, and the communication effect among a plurality of different distances cannot be optimized.
Based on the problem that in the prior art, a set of unrepeatered ultra-long span transmission system cannot be used to optimize the communication effect between a plurality of different distances, no effective solution has been proposed yet.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
In view of the above-mentioned drawbacks and shortcomings of the prior art, the present application provides a method and a system for transmitting a frequency point signal, which utilize delta-sigma (DSM) modulation technology to solve the problem that generation and transmission of a single frequency point signal can be achieved by adopting a digital signal format, and in a trunkless communication system, the required single frequency point signal can be generated and transmitted by utilizing a digital signal at a signal generation transmitting end by utilizing the DSM modulation technology, thereby simplifying the architecture of the whole trunkless transmission system, and reducing the complexity of the system structure. While enabling transmission of variable rate communications.
The application mainly comprises the following aspects:
in a first aspect, the present application provides a method for transmitting a frequency point signal, where the method includes:
acquiring an analog signal with preset frequency, and modulating the analog signal to obtain target data;
performing coherent demodulation mapping on the target data to output first data;
and inputting the first data into a filter of a receiving end, and filtering the first data to obtain a target signal waveform.
In one embodiment of the application, the target data is obtained by modulating the analog signal by a delta-sigma modulation technique.
In one embodiment of the application, the target data is digital sequence data.
In one embodiment of the present application, the inputting the first data into a filter of a receiving end, filtering the first data includes:
and filtering quantization noise generated by modulation in the first data.
In one embodiment of the application, the target signal waveform is an initial signal waveform having complete phase information.
In one embodiment of the present application, the sequence rate of the target data modulated by the delta-sigma modulation technique is a varying sequence rate.
In a second aspect, an embodiment of the present application further provides a frequency point signal transmission system, where the system includes:
the modulation unit is configured to acquire an analog signal with preset frequency and modulate the analog signal to obtain target data;
a coherent demodulation mapping means configured to coherent demodulation map the target data to output first data;
a filter configured to receive the first data and filter the first data;
and an output unit configured to output a target signal waveform.
In one embodiment of the application, the filter is further configured to filter quantization noise generated by modulation in the first data.
In one embodiment of the application, the modulation unit modulates the analog signal by a delta-sigma modulation technique to obtain the target data.
In one embodiment of the application, the target data is digital sequence data.
Compared with the prior art, the technical scheme of the application has the following advantages:
the frequency point signal transmission method and the system adopt a delta-sigma modulation technology in a relay-free ultra-long span transmission system. The DSM modulation technology is applied to a signal generation transmitting end, and a required single-frequency point signal is generated and transmitted by utilizing a digital signal, so that the whole unrepeatered transmission system architecture is simplified, and the complexity of the system structure is reduced. While enabling variable rate communication transmissions.
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In order that the application may be more readily understood, a more particular description of the application will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
Fig. 1 shows a flowchart of a frequency point signal transmission method provided by an embodiment of the present application;
fig. 2 shows a flowchart of a method for transmitting a specific implementation frequency point signal according to an embodiment of the present application;
fig. 3 shows a functional block diagram of a frequency point signal transmission system according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application, and it should be understood that the drawings in the present application are for the purpose of illustration and description only and are not intended to limit the scope of the present application. In addition, it should be understood that the schematic drawings are not drawn to scale. A flowchart, as used in this disclosure, illustrates operations implemented according to some embodiments of the present application. It should be appreciated that the operations of the flow diagrams may be implemented out of order and that steps without logical context may be performed in reverse order or concurrently. Moreover, one or more other operations may be added to or removed from the flow diagrams by those skilled in the art under the direction of the present disclosure.
In addition, the described embodiments are only some, but not all, embodiments of the application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art based on embodiments of the application without making any inventive effort, fall within the scope of the application.
In order to enable a person skilled in the art to use the present disclosure, the following embodiments are given in connection with a specific application scenario "DSM-based frequency point signal transmission technology for ultra-long transmission", and the general principles defined herein may be applied to other embodiments and application scenarios for a person skilled in the art without departing from the spirit and scope of the present disclosure.
The method disclosed by the embodiment of the application can be applied to any scene requiring a frequency point signal transmission technology, the embodiment of the application does not limit specific application scenes, and any scheme for transmitting the frequency point signal provided by the embodiment of the application is within the protection scope of the application.
In order to facilitate understanding of the present application, the following detailed description of the technical solution provided by the present application is provided in connection with specific embodiments.
Fig. 1 is a flowchart of a frequency point signal transmission method according to an embodiment of the present application. As shown in fig. 1, the method provided by the embodiment of the application includes the following steps:
s101: and acquiring an analog signal with preset frequency, and modulating the analog signal to obtain target data.
In some possible embodiments, the target data is obtained by modulating the analog signal by a delta-sigma modulation technique.
The delta-sigma modulation technique is illustratively applied to unrepeatered ultra-long span transmission systems using coherent demodulation mapping.
Furthermore, the delta-sigma (DSM) modulation technology can be used for realizing the generation and transmission of single-frequency point signals by adopting a digital signal format, and in a relay-free communication system, the DSM modulation technology can be used for generating and transmitting required single-frequency point signals by utilizing digital signals at a signal generation transmitting end, so that the whole relay-free transmission system architecture is simplified, and the complexity of the system structure is reduced. While enabling transmission of variable rate communications.
In some possible embodiments, the target data is digital sequence data.
By way of example, converting an analog signal into a 0, 1 digital sequence for transmission may further simplify the system.
In the specific implementation, a delta-sigma modulation technology is adopted, and single-frequency point information generation is realized through 0 and 1 data on sine wave analog signals which are needed to be transmitted originally. By delta-sigma modulating a sine wave signal of a specific frequency, a series of 0, 1 data is output.
In some possible embodiments, the sequence rate of the target data modulated by the delta-sigma modulation technique is a varying sequence rate.
Illustratively, since the frequency of the delta-sigma modulated signal is variable, the rate of the digital sequence so generated is also variable, thereby enabling variable rate communication transmissions.
It should be noted that the Delta-sigma modulation technique can convert the signal into a 0, 1 digital sequence to be sent out, and then the signal is demodulated at the receiving end to obtain the original transmission signal. Delta-sigma modulation techniques have substantially no requirement on signal rate, and even a few hertz of signals can be modulated and demodulated. Thus, communication with adjustable rate can be achieved using Delta-sigma modulation techniques. The Delta-sigma modulation has the main advantage of converting a sine wave analog signal into a 0, 1 digital sequence and transmitting the digital sequence through coherent demodulation mapping.
S102: and performing coherent demodulation mapping on the target data to output first data.
The output sequence data, i.e., a series of 0, 1 data digital sequences, is illustratively communicated via a coherent demodulation mapped output.
S103: and inputting the first data into a filter of a receiving end, and filtering the first data to obtain a target signal waveform.
In some possible embodiments, the inputting the first data into a filter of a receiving end, filtering the first data includes:
and filtering quantization noise generated by modulation in the first data.
For example, the original sine wave waveform can be recovered by filtering the series of 0, 1 data at the receiving end to remove quantization noise generated by modulation.
In some possible implementations, the target signal waveform is an initial signal waveform with complete phase information.
The first data is filtered by a filter to obtain a target signal waveform, i.e. an original sine wave waveform, and the phase information can be substantially completely preserved.
In summary, as shown in fig. 2, in the method for transmitting a frequency point signal provided by the present application, a delta-sigma modulation technique is adopted to generate single frequency point information by 0 and 1 data from a sine wave analog signal that needs to be transmitted originally. Firstly, delta-sigma modulation is carried out on sine wave signals with specific frequency, then a series of 0 and 1 data are output, the series of digital sequences are output through coherent demodulation mapping for communication transmission, finally, the series of digital sequences are filtered at a receiving end, quantization noise generated by modulation is filtered, the original sine wave waveform can be recovered, and phase information can be basically and completely reserved. Meanwhile, the Delta-sigma modulation technology has no requirement on the signal rate basically, and even a signal of a few hertz can be modulated and demodulated. Thus, communication with adjustable rate can be achieved using Delta-sigma modulation techniques.
Based on the same application conception, the embodiment of the application also provides a frequency point signal transmission system corresponding to the frequency point signal transmission method provided by the embodiment, and because the principle of solving the problem of the system in the embodiment of the application is similar to that of the frequency point signal transmission method of the embodiment of the application, the implementation of the system can refer to the implementation of the method, and the repetition is omitted.
As shown in fig. 3, fig. 3 is a functional block diagram of a frequency point signal transmission system 200 according to an embodiment of the present application, including:
the modulation unit 210, the modulation unit 210 is configured to acquire an analog signal with a preset frequency, and modulate the analog signal to obtain target data.
In some alternative embodiments, the modulation unit 210 modulates the analog signal by using a delta-sigma modulation technique to obtain the target data.
Illustratively, the present application utilizes coherent demodulation mapping to apply delta-sigma modulation techniques to unrepeatered ultra-long span transmission systems. Specifically, the delta-sigma (DSM) modulation technology is utilized to realize the generation and transmission of single-frequency point signals by adopting a digital signal format, and in a relay-free communication system, the DSM modulation technology can be utilized to be applied to a signal generation transmitting end to generate and transmit required single-frequency point signals by utilizing digital signals, so that the whole relay-free transmission system architecture is simplified, and the system structure complexity is reduced. While enabling transmission of variable rate communications.
In some alternative embodiments, the target data is digital sequence data.
The analog signal is converted into a 0, 1 digital sequence to be transmitted, namely, the delta-sigma modulation technology is utilized to realize single frequency point information generation of the sine wave analog signal which needs to be transmitted originally through 0, 1 data. By delta-sigma modulating a sine wave signal of a specific frequency, a series of 0, 1 data is output.
A coherent demodulation mapping means 220, said coherent demodulation mapping means 220 being configured to coherent demodulation map said target data to output first data.
A filter 230, the filter 230 being configured to receive the first data and to filter the first data.
In some alternative embodiments, the filter 230 is further configured to filter quantization noise generated by modulation in the first data.
An output unit 240, the output unit 240 being configured to output a target signal waveform.
In summary, according to the frequency point signal transmission system provided by the application, the delta-sigma modulation technology is adopted to realize single frequency point information generation of the sine wave analog signal which needs to be transmitted originally through 0 and 1 data. Firstly, delta-sigma modulation is carried out on sine wave signals with specific frequency, then a series of 0 and 1 data are output, the series of digital sequences are output through coherent demodulation mapping for communication transmission, finally, the series of digital sequences are filtered at a receiving end, quantization noise generated by modulation is filtered, the original sine wave waveform can be recovered, and phase information can be basically and completely reserved. Meanwhile, the Delta-sigma modulation technology has no requirement on the signal rate basically, and even a signal of a few hertz can be modulated and demodulated. Thus, communication with adjustable rate can be achieved using Delta-sigma modulation techniques.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present application will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present application.
Claims (10)
1. A method for transmitting a frequency point signal, the method comprising:
acquiring an analog signal with preset frequency, and modulating the analog signal to obtain target data;
performing coherent demodulation mapping on the target data to output first data;
and inputting the first data into a filter of a receiving end, and filtering the first data to obtain a target signal waveform.
2. The method of claim 1, wherein the target data is obtained by modulating the analog signal using a delta-sigma modulation technique.
3. The method of claim 2, wherein the target data is digital sequence data.
4. The method of claim 1, wherein the inputting the first data into a filter at a receiving end filters the first data, comprising:
and filtering quantization noise generated by modulation in the first data.
5. The method of claim 1, wherein the target signal waveform is an initial signal waveform having complete phase information.
6. A method according to claim 3, characterized in that the sequence rate of the target data obtained by modulation by the delta-sigma modulation technique is a varying sequence rate.
7. A frequency point signal transmission system, the system comprising:
the modulation unit is configured to acquire an analog signal with preset frequency and modulate the analog signal to obtain target data;
a coherent demodulation mapping means configured to coherent demodulation map the target data to output first data;
a filter configured to receive the first data and filter the first data;
and an output unit configured to output a target signal waveform.
8. The apparatus of claim 7, wherein the filter is further configured to filter quantization noise generated by modulation in the first data.
9. The apparatus of claim 7, wherein the modulation unit modulates the analog signal by a delta-sigma modulation technique to obtain the target data.
10. The apparatus of claim 9, wherein the target data is digital sequence data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310902689.6A CN116760419A (en) | 2023-07-21 | 2023-07-21 | Frequency point signal transmission method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310902689.6A CN116760419A (en) | 2023-07-21 | 2023-07-21 | Frequency point signal transmission method and system |
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| Publication Number | Publication Date |
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| CN116760419A true CN116760419A (en) | 2023-09-15 |
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| CN202310902689.6A Pending CN116760419A (en) | 2023-07-21 | 2023-07-21 | Frequency point signal transmission method and system |
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