Signal loading method, electronic equipment and computer readable storage medium

Abstract

The embodiment of the invention provides a signal loading method, electronic equipment, a computer readable storage medium and a computer program product, and the method comprises the steps: obtaining an initial service signal and a low-frequency top adjusting signal; dividing the initial service signal into a plurality of sub-service signals in a time domain; loading the low-frequency topping signal to one of the sub-service signals to obtain a loading signal; and performing signal reconstruction processing on the loaded signal and the sub-service signal without loading the low-frequency top adjusting signal to obtain a final service signal. According to the technical scheme, loading of the low-frequency topping signal can be simply, conveniently and rapidly carried out in the time domain, the problem that the demodulation amplitude of the low-frequency topping signal at the receiving end is attenuated by dispersion is solved, and the loading process has high flexibility.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to but is not limited to the technical field of communication, in particular to a signal loading method, electronic equipment, computer readable storage medium and computer program product. BACKGROUND

[0002] In the optical fiber channel, a low-frequency top-modulated signal can be loaded on a high-speed signal for performance monitoring of the high-speed signal; due to the influence of the dispersion amplitude attenuation effect in the optical fiber channel, the carrier frequency amplitude attenuation directly reduces the amplitude of the top-modulated signal, causes the signal-to-noise ratio of the top-modulated signal at the receiving end to deteriorate and the optical power monitoring value to be small, and therefore it is necessary to suppress the amplitude attenuation caused by dispersion, however, the current dispersion amplitude attenuation suppression method is relatively complicated and has low flexibility. SUMMARY

[0003] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0004] The embodiment of the present application provides a signal loading method, electronic equipment, computer readable storage medium and computer program product, which can simply and conveniently load a low-frequency top-modulated signal, and the loading process has high flexibility.

[0005] In a first aspect, the embodiment of the present application provides a signal loading method, which comprises:

[0006] obtaining an initial service signal and a low-frequency top-modulated signal;

[0007] dividing the initial service signal into a plurality of sub-service signals in the time domain;

[0008] loading the low-frequency top-modulated signal into one of the sub-service signals to obtain a loaded signal;

[0009] performing signal reconstruction processing on the loaded signal and a sub-service signal without the low-frequency top-modulated signal to obtain a final service signal.

[0010] In a second aspect, the embodiment of the present application provides a signal loading device, which comprises:

[0011] a first signal generation module configured to generate a low-frequency top-modulated signal;

[0012] a second signal generation module configured to generate an initial service signal;

[0013] a signal frequency division module configured to divide the initial service signal into a plurality of sub-service signals in the time domain;

[0014] a signal loading module configured to load the low-frequency top-modulated signal into one of the sub-service signals to obtain a loaded signal.

[0015] a signal reconstruction module, configured to perform signal reconstruction processing on the loaded signal and a sub-service signal without the low-frequency top-modulation signal to obtain a final service signal.

[0016] In a third aspect, an electronic device is provided, including:

[0017] at least one processor;

[0018] at least one memory configured to store at least one program;

[0019] The at least one program, when executed by the at least one processor, implements the signal loading method according to the first aspect.

[0020] In a fourth aspect, a computer-readable storage medium is provided, which stores computer-executable instructions for implementing the signal loading method according to the first aspect.

[0021] In a fifth aspect, a computer program product is provided, which includes a computer program or computer instructions, characterized in that the computer program or the computer instructions are stored in a computer-readable storage medium, a processor of a computer device reads the computer program or the computer instructions from the computer-readable storage medium, and the processor executes the computer program or the computer instructions, so that the computer device executes the signal loading method according to the first aspect.

[0022] Embodiments of the present application include: in the process of signal loading, an initial service signal and a low-frequency top-modulation signal need to be obtained; the initial service signal is divided into a plurality of sub-service signals in the time domain; the low-frequency top-modulation signal is loaded into one of the sub-service signals to obtain a loaded signal; and the loaded signal is processed by signal reconstruction together with a sub-service signal without the low-frequency top-modulation signal, so that a final service signal can be obtained. According to the technical solution provided by the embodiments of the present application, the initial service signal is divided into a plurality of sub-service signals, and only one of the sub-service signals is loaded with the low-frequency top-modulation signal, all steps are implemented in the time domain, the structure is simple, and the division process of the initial service signal is simple and flexible, so that the loading of the low-frequency top-modulation signal can be conveniently and quickly performed, and the loading process has high flexibility. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings are included to provide a further understanding of the technical solutions of the present application, and constitute a part of the specification, and are used together with the embodiments of the present application to explain the technical solutions of the present application, and do not constitute a limitation on the technical solutions of the present application.

[0024] Figure 1is a signal loading device structure schematic diagram for performing a signal loading method provided by an embodiment of the present application;

[0025] Figure 2 is a flowchart of a signal loading method provided by an embodiment of the present application;

[0026] Figure 3 is a flowchart of time domain division of an initial service signal provided by an embodiment of the present application;

[0027] Figure 4 is a specific flowchart of time domain division of an initial service signal according to frequency band division parameters provided by an embodiment of the present application;

[0028] Figure 5 is a flowchart of low-frequency top-loading signal loading provided by an embodiment of the present application;

[0029] Figure 6 is a flowchart of signal reconstruction provided by an embodiment of the present application;

[0030] Figure 7 is a flowchart of generation of a low-frequency top-loading signal provided by an embodiment of the present application;

[0031] Figure 8 is a flowchart of generation of a sinusoidal low-frequency cursor signal provided by an embodiment of the present application;

[0032] Figure 9 is a flowchart of time domain filtering processing of an initial service signal provided by an embodiment of the present application;

[0033] Figure 10 is a low-frequency top-loading signal time domain waveform diagram provided by an embodiment of the present application;

[0034] Figure 11 is a high-speed signal waveform diagram divided into three frequency bands provided by an embodiment of the present application;

[0035] Figure 12 is a high-speed signal waveform diagram of partial frequency band loading top-loading signal provided by an embodiment of the present application;

[0036] Figure 13 is a signal spectrum diagram of a cursor label receiving end after sampling by a low-speed photodetector and a low-speed analog-to-digital converter provided by an embodiment of the present application;

[0037] Figure 14 is a comparison diagram of low-frequency band loading cursor label carrier frequency and full-frequency band loading cursor label carrier frequency versus dispersion decay provided by an embodiment of the present application;

[0038] Figure 15 is a structure schematic diagram of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0040] It should be noted that although the device schematics illustrate functional module divisions and the flowcharts illustrate logical sequences, in certain circumstances, the steps shown or described may be performed in a sequence that differs from the module divisions in the device or the sequence in the flowcharts. The terms "first," "second," and so on, in the specification, claims, and drawings, are used to distinguish similar items and are not necessarily used to describe a specific sequence or precedence.

[0041] In the description of this application, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0042] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0043] The embodiments of the present application provide a signal loading method, electronic device, computer-readable storage medium, and computer program product. During the signal loading process, it is necessary to obtain an initial service signal and a low-frequency top-modulated signal; divide the initial service signal into multiple sub-service signals in the time domain; load the low-frequency top-modulated signal into one of the sub-service signals to obtain a loaded signal; and perform signal reconstruction processing on the loaded signal and the sub-service signal that is not loaded with the low-frequency top-modulated signal to obtain the final service signal. According to the technical solution provided by the embodiments of the present application, by dividing the initial service signal into multiple sub-services and only loading the low-frequency top-modulated signal on one of the sub-service signals, all steps are implemented in the time domain, the structure is simple, and the division process of the initial service signal is simple and flexible. Therefore, the loading of the low-frequency top-modulated signal can be performed simply and quickly, and the loading process has high flexibility.

[0044] The embodiments of the present application are further described below with reference to the accompanying drawings.

[0045] like Figure 1 As shown, Figure 1is a device architecture schematic diagram for performing the signal loading method provided by an embodiment of the present application. In Figure 1 the example, the device architecture includes a first signal generation module 100, a second signal generation module 200, a signal frequency division module 300, a signal loading module 400, and a signal reconstruction module 500; wherein the second signal generation module 200, the signal frequency division module 300, the signal loading module 400, and the signal reconstruction module 500 are connected in sequence, the signal frequency division module 300 is also connected with the signal reconstruction module 500, and the first signal generation module 100 is connected with the signal loading module 400; wherein the first signal generation module 100 is configured to generate a low-frequency top-up signal; the second signal generation module 200 is configured to generate an initial service signal; the signal frequency division module 300 is configured to divide the initial service signal into a plurality of sub-service signals in the time domain; the signal loading module 400 is configured to load the low-frequency top-up signal into one of the sub-service signals, i.e., the frequency band 1 indicated in Figure 1 , and the remaining sub-service signals are the remaining frequency bands indicated in the figure; and the signal reconstruction module 500 is configured to perform signal reconstruction processing on the loaded signal and the sub-service signal without the low-frequency top-up signal to obtain a final service signal.

[0046] It is worth noting that the first signal generation module 100, the second signal generation module 200, the signal frequency division module 300, the signal loading module 400, and the signal reconstruction module 500 in the embodiments of the present application can all be hardware modules or software modules, which are not limited here.

[0047] It is worth noting that the signal frequency division module 300 and the signal loading module 400 are both arranged in a digital signal processing chip; or the signal frequency division module 300 is an optical filter, and the signal loading module 400 is an optical attenuator or an optical amplifier; or the signal frequency division module 300 is an electrical filter, and the signal loading module 400 is an electrical attenuator or an electrical amplifier.

[0048] The device architecture and application scenarios described in the embodiments of the present application are for more clearly explaining the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of the device architecture and the appearance of new application scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0049] Those skilled in the art can understand that the device architecture shown in Figure 1 does not constitute a limitation on the embodiments of the present application, and can include more or fewer components than shown in the figure, or combine certain components, or different component arrangements.

[0050] Based on the structure of the above device architecture, various embodiments of the signal loading processing method of the present application are proposed.

[0051] As Figure 2 shown, the first aspect of the present application one embodiment provides a flow chart of a signal loading method. The method includes but is not limited to step S100, step S200, step S300 and step S400.

[0052] Step S100, obtaining an initial service signal and a low-frequency overlay signal;

[0053] Step S200, dividing the initial service signal into a plurality of sub-service signals in time domain;

[0054] Step S300, loading the low-frequency overlay signal to one of the sub-service signals to obtain a loaded signal;

[0055] Step S400, performing signal reconstruction processing on the loaded signal and the sub-service signal without the low-frequency overlay signal to obtain a final service signal.

[0056] In some embodiments of the present application, in the process of signal loading, the initial service signal and the low-frequency overlay signal are obtained; the initial service signal is divided into a plurality of sub-service signals in time domain; the low-frequency overlay signal is loaded to one of the sub-service signals to obtain a loaded signal; and the loaded signal and the sub-service signal without the low-frequency overlay signal are processed by signal reconstruction to obtain a final service signal. According to the technical solution provided by the embodiments of the present application, the initial service signal is divided into a plurality of sub-services, and only one of the sub-service signals is loaded with the low-frequency overlay signal, all steps are implemented in time domain, the structure is simple, and the division process of the initial service signal is simple and flexible, so that the loading of the low-frequency overlay signal can be conveniently and quickly performed, and the process of loading has high flexibility.

[0057] It is worth noting that the optical fiber communication system is developing towards larger capacity and more intelligent, and at the same time, more complex optical network structure, which urgently needs more efficient and flexible optical layer monitoring technology to meet the management and operation needs. The optical layer overlay technology is a technology of loading low-frequency modulation signal on the main optical channel high-speed signal to realize the transmission of the main optical channel overhead, performance detection; can realize the overhead function, used for channel identification, wavelength tracking, etc., and can also combine the low-frequency overlay signal pilot modulation depth to calculate the wavelength high-speed signal optical power, etc.

[0058] In some embodiments of the present application, the initial service signal can be an optical channel normal service signal, and the second signal generation module 200 can be a high-speed signal generator. The high-speed signal generator can generate an optical channel normal service signal with a certain modulation format, rate and baud rate by forward error correction coding, symbol mapping, framing, Nyquist shaping, etc. The optical channel normal service signal is a high-speed signal, and in the optical channel, a low-frequency overlay signal needs to be loaded on the high-speed signal to monitor the performance of the high-speed signal. Since the carrier frequency amplitude attenuation of the low-frequency overlay signal is related to the frequency bandwidth loaded on the high-speed signal, the present application divides the high-speed initial service signal into two or more sub-service signals in the time domain, and the frequency band boundary point can be flexibly configured. A low-frequency overlay signal is loaded on one of the sub-service signals of the initial service signal in the time domain, thereby achieving the purpose of solving the dispersion amplitude attenuation with low complexity.

[0059] In some embodiments of the present application, the first signal generation module 100 can be a low-frequency overlay signal generator. Since the low-frequency overlay signal carries a monitoring signal transmitted with the initial service signal, forward error correction coding, framing, differential encoding, etc. are needed to generate a low-speed low-frequency overlay signal with a certain rate, carrier frequency and modulation coefficient. Exemplarily, the low-frequency overlay signal generator can perform forward error correction coding, framing, differential encoding, modulation depth adjustment, frequency adjustment and sampling rate adjustment on the optical label payload data to generate the required low-frequency overlay signal.

[0060] It is worth noting that the low-complexity partial frequency band loading method proposed in the embodiments of the present application uses time domain frequency division, which can be implemented in a digital signal processing chip or in the optical domain. The frequency band width and spectral response shape are not required, and the use is flexible. More importantly, because different baud rates and modulation format signals have different propagation distances and different anti-dispersion attenuation requirements, the present application can arbitrarily adjust the frequency band width and center frequency of the initial service signal loaded with the low-frequency overlay signal in implementation, and even can adaptively adjust the above parameters to make the anti-dispersion attenuation capability and the sensitivity of the receiving end receiver optimal, thereby solving the problem of large detection error of the overlay signal amplitude and serious degradation of the receiving sensitivity of the receiving end caused by dispersion attenuation. At the same time, the time domain frequency division and loading structure is simple and will not be limited by whether the high-speed signal transmitter digital signal processor is a time domain architecture or a frequency domain architecture, and can be used.

[0061] As shown in Figure 3 The above step S200 can include but is not limited to step S210 and step S220.

[0062] Step S210, generating frequency division parameters according to the signal bandwidth and transmission distance of the initial service signal;

[0063] Step S220, performing frequency division processing on the initial service signal in the time domain according to the frequency division parameter to obtain a plurality of sub-service signals.

[0064] In some embodiments of the present application, in the process of dividing the initial service signal in the time domain into a plurality of sub-service signals, first, the corresponding frequency division parameter is generated according to the signal bandwidth and the transmission distance of the initial service signal; then the initial service signal can be processed in the time domain according to the frequency division parameter to obtain a plurality of sub-service signals. Through the above frequency division method, the division of the initial service signal can be more flexible and accurate.

[0065] It is worth noting that the signal frequency division module 300 can be a frequency divider. The frequency division parameter can be generated by a signal processor according to the signal bandwidth and the transmission distance. Subsequently, the initial service signal can be reconfigurably frequency divided according to the frequency division parameter by the frequency divider. The initial service signal can be divided into two frequency bands or a plurality of frequency bands. The frequency bands can be continuous or discontinuous. The frequency division method is very flexible. Each frequency band is a sub-service signal in the embodiments of the present application.

[0066] It is worth noting that through the technical solutions of the embodiments of the present application, the problem of the amplitude of the low carrier frequency modulation signal loaded on the high-speed signal being affected by dispersion attenuation can be solved. The sensitivity of the optical receiver, the transmission distance, and the reporting accuracy of the carrier frequency amplitude are improved. All steps can be implemented in the digital domain or in the optical domain. The frequency of the modulation signal carrier frequency is not limited. It can be arbitrarily configured. All steps are implemented in the time domain. It is not limited to whether the high-speed signal digital signal processor architecture is a time domain architecture or a frequency domain architecture. The structure is simple. The resource and power consumption are very low. The frequency division parameter can be adjusted at will. The frequency bands can be continuous or discontinuous. The performance of the low frequency modulation signal can be guaranteed to be optimal and the cost of the high-speed signal can be minimized.

[0067] As shown in FIG. 2, Figure 4 The above step S220 can include but is not limited to step S221, step S222, step S223, step S224, and step S225.

[0068] Step S221, determining the frequency division bandwidth and the center frequency according to the frequency division parameter;

[0069] Step S222, performing time domain filtering processing on the initial service signal according to the frequency division bandwidth and the center frequency to obtain a filtered service signal;

[0070] Step S223, performing time delay adjustment processing on the filtered service signal according to the preset adjustment time delay to obtain a filtered adjustment signal;

[0071] Step S224, time delay alignment of the initial service signal and the filtered adjustment signal, and determination of the frequency band service signal according to the initial service signal and the filtered adjustment signal after time delay alignment.

[0072] Step S225 , determining a plurality of sub-service signals according to the frequency band service signal and the filter adjustment signal.

[0073] In some embodiments of the present application, in the process of performing frequency division processing on the initial service signal in the time domain according to the frequency division band parameters to obtain multiple sub-service signals, the frequency division bandwidth and center frequency are first determined according to the frequency division band parameters; then the initial service signal is subjected to time domain filtering processing according to the frequency division bandwidth and center frequency to obtain a filtered service signal; then the filtered service signal is subjected to delay adjustment processing according to a preset adjustment delay to obtain a filtered adjustment signal; then the initial service signal and the filtered adjustment signal are delay aligned, and the frequency band service signal is determined based on the initial service signal and the filtered adjustment signal after delay alignment; finally, multiple sub-service signals are determined based on the frequency band service signal and the filtered adjustment signal, and the entire frequency division process is simple, stable and reliable.

[0074] Notably, the crossover bandwidth and center frequency can be adjusted and reconfigured at any time based on the service signal bandwidth and transmission distance. The frequency band amplitude-frequency response can be configured arbitrarily without restrictions, and the frequency band can be continuous or discontinuous. Furthermore, the crossover can be a low-pass, band-pass, or high-pass filter, or any device capable of separating frequency bands in the time domain.

[0075] like Figure 5 As shown, the above step S300 may include but is not limited to step S310 and step S320.

[0076] Step S310, selecting a sub-service signal from multiple sub-service signals;

[0077] Step S320: Combine the selected sub-service signal and the low-frequency top-modulation signal to obtain a loading signal.

[0078] In some embodiments of the present application, in the process of loading a low-frequency top-modulated signal onto one of the sub-service signals to obtain a loaded signal, a sub-service signal is first selected from multiple sub-service signals; then the selected sub-service signal and the low-frequency top-modulated signal are combined to obtain the corresponding loaded signal.

[0079] It is worth noting that the signal loading module 400 can be a loader that selects any frequency band of the initial service signal after frequency division and loads the low-frequency top-modulation signal. Loading the low-frequency top-modulation signal refers to loading the top-modulation disturbance information onto the initial service signal, thereby adding a low-carrier-frequency monitoring signal to the initial service signal.

[0080] like Figure 6 As shown, the above step S400 may include but is not limited to step S410 and step S420.

[0081] Step S410, time delay alignment is performed on the loaded signal and the sub-service signal without the loaded low-frequency superimposed signal;

[0082] Step S420, signal reconstruction processing is performed on the loaded signal and the sub-service signal without the loaded low-frequency superimposed signal after time delay alignment, to obtain a final service signal.

[0083] In some embodiments of the present application, in the process of performing signal reconstruction processing on the loaded signal and the sub-service signal without the loaded low-frequency superimposed signal to obtain a final service signal, first, time delay alignment processing is performed on the loaded signal and the sub-service signal without the loaded low-frequency superimposed signal; then, signal reconstruction processing is performed on the loaded signal and the sub-service signal without the loaded low-frequency superimposed signal after time delay alignment, so that a final service signal can be obtained, and thus a high-speed service signal with a complete frequency band can be recovered.

[0084] It is worth noting that the signal reconstruction module 500 can be a signal reconstructor, which is used to reconstruct the loaded signal with the loaded low-frequency superimposed signal and the two-part frequency band without the loaded low-frequency superimposed signal after time delay alignment, to recover a high-speed service signal with a complete frequency band.

[0085] It is worth noting that the present embodiment has low complexity due to the use of the time-domain frequency division loading method. In fact, this method can be implemented inside a digital signal processor chip, or can be implemented outside the chip in an analog domain through a combination of optical filters and optical attenuators / optical amplifiers, or theoretically, can be implemented through electrical filter and electrical attenuator / amplifier adjustment. At the same time, the present embodiment includes all technical means that can load a low-speed superimposed signal on a high-speed service signal.

[0086] As shown in FIG. 1, Figure 7 The low-frequency superimposed signal can be obtained through, but is not limited to, steps S110 and S120.

[0087] Step S110, obtaining a data rate, a modulation coefficient, and a carrier frequency;

[0088] Step S120, obtaining a low-frequency superimposed signal according to the data rate, the modulation coefficient, and the carrier frequency.

[0089] In some embodiments of the present application, because the low-frequency superimposed signal carries a monitoring signal transmitted with the main service high-speed signal, it needs to be subjected to forward error correction encoding, framing, differential encoding, and other operations, to generate a low-speed superimposed signal at a certain rate, carrier frequency, and modulation coefficient.

[0090] As shown in FIG. 1, Figure 8As shown, in the case of the low-frequency top-modulation signal being a sinusoidal low-frequency optical tag signal, the low-frequency top-modulation signal can be obtained through, but not limited to, steps S130 and S140.

[0091] In step S130, a modulation coefficient, an optical tag carrier frequency, and a time parameter are obtained.

[0092] In step S140, a sinusoidal low-frequency optical tag signal is obtained according to the modulation coefficient, the optical tag carrier frequency, and the time parameter.

[0093] In some embodiments of the present application, the modulation coefficient, the optical tag carrier frequency, and the time parameter are first obtained, and then the sinusoidal low-frequency optical tag signal can be obtained according to the modulation coefficient, the optical tag carrier frequency, and the time parameter, so that the generation process of the entire low-frequency top-modulation signal is simple and fast.

[0094] As shown in FIG. 2, Figure 9 As shown, the frequency bandwidth and the center frequency both have multiple values, and the above step S222 can include, but is not limited to, steps S2221 and S2222.

[0095] In step S2221, multiple frequency segment boundary points are obtained according to the multiple frequency bandwidths and the corresponding center frequencies.

[0096] In step S2222, a filtered service signal is obtained by performing time domain filtering processing on the initial service signal according to the multiple frequency segment boundary points.

[0097] In some embodiments of the present application, in the process of performing time domain filtering processing on the initial service signal according to the frequency bandwidth and the center frequency, first, multiple frequency segment boundary points are obtained according to the multiple frequency bandwidths and the corresponding center frequencies, and then the corresponding filtered service signal can be obtained by performing time domain filtering processing on the initial service signal according to the multiple frequency segment boundary points. The frequency segment boundary points can be flexibly set, and the frequency segments can be continuous or discontinuous, and can be set according to actual needs.

[0098] It is worth noting that the frequency divider bandwidth and the center frequency can be adjusted at any time according to the service signal bandwidth and the transmission distance, and can be reconfigured. The frequency band amplitude frequency response can be configured at will without any related restrictions, and the frequency band can be continuous or discontinuous. At the same time, the frequency divider can be a low-pass, band-pass, or high-pass filter, or any device that can realize time domain frequency band separation.

[0099] In order to more clearly illustrate the flow of the signal loading method provided by the embodiments of the present application, specific examples are used for illustration.

[0100] In this embodiment, the optical tag is used as a kind of low-frequency top-modulation signal, and is loaded in the digital domain inside the digital signal processing chip as a kind of implementation manner.

[0101] In this embodiment, the optical label carrier frequency is 30M, the modulation factor is 20%, the high-speed signal baud rate is 128G, the reconfigurable frequency divider uses a finite impulse response filter with a bandwidth of 30G, and the loading position is at the tail end of the high-speed signal transmitting end digital signal processor for implementation:

[0102] The modulation signal generator generates a sinusoidal low-frequency optical label signal: mk* sin(2πft), where mk is the modulation factor 20%, and f is the optical label carrier frequency 30M. As shown in Figure 10 The time-domain sinusoidal disturbance is shown.

[0103] Figure 11 The high-speed signal spectrum is divided into three frequency bands: low frequency band 1, high frequency band 2, and high frequency band 3. In this embodiment, the frequency division method uses an even-order left-right strictly symmetric finite impulse response filter to perform low-pass filtering on the high-speed signal time domain. When frequency dividing, the low-pass filter first filters the high-speed signal A(t) time domain to obtain the time domain signal A1(t) of frequency band 1, and at the same time introduces an integer sample time delay to A1(t). Then, A(t) needs to be aligned with the time delay of A1(t), and after time delay alignment, A(t) is subtracted from A1(t) to obtain the time domain signal A2(t) of frequency band 2 and the sum of the time domain signal A3(t) of frequency band 3, thereby dividing the high-speed signal in the time domain into two parts. The bandwidth of the low-pass filter can be generated according to the baud rate and transmission distance of the high-speed signal. In this embodiment, in order to facilitate description, a 30G bandwidth FIR low-pass filter is directly used.

[0104] The optical label is loaded in frequency band 1, and is loaded in the digital domain, that is, the optical label and the modulation sinusoidal disturbance are combined by multiplication and addition operation in the digital domain, and the optical label modulation sinusoidal disturbance is loaded into frequency band 1, that is:

[0105]

[0106] Where mk is the modulation depth and f is the optical label carrier frequency. Figure 12 The time domain waveform of the high-speed signal loaded with the optical label in frequency band 1 can be seen that at the top of the waveform, the optical label modulation sinusoidal envelope appears.

[0107] After the optical label is loaded in frequency band 1 in the time domain, the high-speed signal needs to be restored in the time domain. The specific operation is that after the three parts of the frequency band 1 loaded with the optical label, the frequency band 2 and 3 not loaded with the optical label, and the time delay of the three parts are strictly aligned, the high-speed signal is restored to the complete frequency band A ′ (t) by directly adding. At this time, the optical label completes the time domain partial frequency band loading:

[0108]

[0109] Figure 13The signal spectrum is a signal spectrum of an optical tag after being sampled by a low-speed photoelectric detector and a low-speed analog-to-digital converter. It can be seen that the low-frequency band loading terminal can obviously extract the optical tag carrier frequency. Figure 10 、 Figure 12 and Figure 13 The ordinate of each of the above-mentioned embodiments represents an amplitude.

[0110] Figure 14 By comparing the dispersion attenuation curves of the low-frequency band 1 and the full-frequency band loading optical tag carrier frequency, it can be seen that the corresponding curve of the low-frequency band 1 loading is located above the corresponding curve of the full-frequency band loading. The partial frequency band loading of the optical tag can obviously suppress the dispersion amplitude attenuation of the optical tag carrier frequency, and can obviously achieve the effect of suppressing the dispersion amplitude attenuation.

[0111] It should be noted that the above-mentioned time domain frequency division and loading sequence is only for the convenience of description, and a frequency division and then loading sequence is used for example. In the specific implementation, the sequence and steps of loading and frequency division can be flexibly adjusted according to the actual situation, and any sequence is used to realize the behavior of loading the low-frequency modulation signal in the time domain partial frequency band, which is considered to fall within the protection scope of the present application.

[0112] In addition, as shown in Figure 15 , an embodiment of the present application further provides an electronic device 800, which comprises:

[0113] The memory 820, the processor 810 and the computer program stored in the memory 820 and executable on the processor 810.

[0114] The processor 810 and the memory 820 can be connected by a bus or other means.

[0115] It should be noted that the electronic device 800 in the embodiment and the signal loading method in the above-mentioned embodiments belong to the same inventive concept, so these embodiments have the same implementation principles and technical effects, which will not be described in detail here.

[0116] The non-transient software program and instructions required for the signal loading method of the above-mentioned embodiments are stored in the memory 820, and when executed by the processor 810, the signal loading method in the above-mentioned embodiments is executed.

[0117] In addition, an embodiment of the present application further provides a computer readable storage medium, which stores computer executable instructions. The computer executable instructions are executed by a processor 810, for example, a processor 810 in the above-mentioned electronic device 800 embodiment, so that the above-mentioned processor 810 executes the signal loading method in the above-mentioned embodiments.

[0118] In addition, an embodiment of the present application further provides a computer program product, comprising a computer program or computer instructions stored in a computer readable storage medium, wherein a processor of a computer device reads the computer program or the computer instructions from the computer readable storage medium, and executes the computer program or the computer instructions, so that the computer device executes the signal loading method in the above embodiment.

[0119] Those of ordinary skill in the art understand that all or some steps in the above disclosed method and system can be implemented as software, firmware, hardware and appropriate combination thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software can be distributed on a computer readable medium, which can include computer storage media (or non-transitory media) and communication media (or transitory media). As known to those of ordinary skill in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. In addition, it is known to those of ordinary skill in the art that communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.

[0120] The above is a specific description of the preferred embodiments of the present application, but the present application is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A signal loading method, the method comprising: obtaining an initial service signal and a low-frequency top-up signal; dividing the initial service signal into a plurality of sub-service signals in time domain; loading the low-frequency top-up signal into one of the sub-service signals to obtain a loaded signal; performing signal reconstruction processing on the loaded signal and a sub-service signal without the low-frequency top-up signal to obtain a final service signal.

2. The signal loading method of claim 1, wherein, The dividing the initial service signal into a plurality of sub-service signals in time domain comprises: generating frequency band parameters according to a signal bandwidth and a transmission distance of the initial service signal; performing frequency division processing on the initial service signal in time domain according to the frequency band parameters to obtain the plurality of sub-service signals.

3. The signal loading method of claim 2, wherein, The performing frequency division processing on the initial service signal in time domain according to the frequency band parameters to obtain the plurality of sub-service signals comprises: determining a frequency division bandwidth and a center frequency according to the frequency band parameters; performing time domain filtering processing on the initial service signal according to the frequency division bandwidth and the center frequency to obtain a filtered service signal; performing time delay adjustment processing on the filtered service signal according to a preset adjustment time delay to obtain a filtered adjustment signal; aligning time delays of the initial service signal and the filtered adjustment signal, and determining a frequency band service signal according to the initial service signal and the filtered adjustment signal after time delay alignment; determining the plurality of sub-service signals according to the frequency band service signal and the filtered adjustment signal.

4. The signal loading method of claim 1, wherein, The loading the low-frequency top-up signal into one of the sub-service signals to obtain the loaded signal comprises: selecting one of the sub-service signals from the plurality of sub-service signals; combining the selected sub-service signal and the low-frequency top-up signal to obtain the loaded signal.

5. The signal loading method of claim 1, wherein, The performing signal reconstruction processing on the loaded signal and a sub-service signal without the low-frequency top-up signal to obtain a final service signal comprises: aligning time delays of the loaded signal and the sub-service signal without the low-frequency top-up signal; performing signal reconstruction processing on the loaded signal and the sub-service signal without the low-frequency top-up signal after time delay alignment to obtain the final service signal.

6. The signal loading method of claim 1, wherein, The low-frequency top-up signal is obtained by: obtaining a data rate, a modulation coefficient and a carrier frequency; obtaining the low-frequency top-up signal according to the data rate, the modulation coefficient and the carrier frequency.

7. The signal loading method of claim 6, wherein, In a case where the low-frequency top-up signal is a sinusoidal low-frequency optical tag signal, the low-frequency top-up signal is obtained by: obtaining a modulation coefficient, an optical tag carrier frequency and a time parameter; obtaining the sinusoidal low-frequency optical tag signal according to the modulation coefficient, the optical tag carrier frequency and the time parameter.

8. The signal loading method of claim 3, wherein, The frequency division bandwidth and the center frequency are both multiple, and the performing time domain filtering processing on the initial service signal according to the frequency division bandwidth and the center frequency to obtain a filtered service signal comprises: obtaining a plurality of frequency band boundary points according to the plurality of frequency division bandwidths and corresponding center frequencies; performing time domain filtering processing on the initial service signal according to the plurality of frequency band boundary points to obtain the filtered service signal.

9. A signal loading device, characterized by ​ The first signal generation module is configured to generate a low-frequency top-up signal. The second signal generation module is configured to generate an initial service signal. The signal division module is configured to divide the initial service signal into a plurality of sub-service signals in the time domain. The signal loading module is configured to load the low-frequency top-up signal into one of the sub-service signals to obtain a loaded signal. The signal reconstruction module is configured to perform signal reconstruction processing on the loaded signal and a sub-service signal that is not loaded with the low-frequency top-up signal to obtain a final service signal.

10. The signal loading device of claim 9, wherein, The signal division module and the signal loading module are arranged in a data signal processing chip. Alternatively, the signal division module is an optical filter, and the signal loading module is an optical attenuator or an optical amplifier. Alternatively, the signal division module is an electrical filter, and the signal loading module is an electrical attenuator or an electrical amplifier.

11. An electronic device, comprising: The computer device comprises: at least one processor; at least one memory configured to store at least one program; when the at least one program is executed by the at least one processor, the signal loading method according to any one of claims 1 to 8 is implemented.

12. A computer-readable storage medium storing computer-executable instructions, wherein execution of the computer-executable instructions by one or more processors of a computing system causes the one or more processors to perform operations comprising: The computer executable instructions are used to execute the signal loading method according to any one of claims 1 to 8.

13. A computer program product comprising computer programs or computer instructions, characterized in that, The computer program or the computer instructions are stored in a computer readable storage medium, and the processor of the computer device reads the computer program or the computer instructions from the computer readable storage medium. The processor executes the computer program or the computer instructions, so that the computer device executes the signal loading method according to any one of claims 1 to 8.

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