Performance test method and device, computer equipment, readable storage medium and program product

Abstract

The invention relates to a performance test method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: acquiring a communication signal of a first preset wave band and a sensing signal of a second preset wave band; determining the performance damage and nonlinear effect of the communication signal according to the first state information of the communication signal when the sensing signal does not exist and the second state information of the communication signal when the sensing signal exists; and in the presence of the sensing signal, determining the long-term bit error rate of the communication signal, and determining the performance test result of the optical fiber communication system according to the performance damage, the nonlinear effect and the long-term bit error rate. By adopting the method, an accurate and quantifiable performance test result can be provided, data support is provided for optimizing cooperative work of sensing and communication signals, and the reliability and long-term stability of an optical fiber communication system are ensured.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a performance testing method, apparatus, computer equipment, computer-readable storage medium, and computer program product. Background Art

[0002] With the development of communication technology, wavelength division multiplexing (WDM) technology and fiber optic sensing technology have emerged. For example, OTDR (Optical Time-domain Reflectometer) equipment can realize real-time monitoring of fiber optic links to detect the health status of optical fibers.

[0003] In traditional technology, in optical fiber communication, the test of communication signals mainly uses a bit error tester to analyze the BER (Bit Error Ratio) value of the communication signal to obtain the bit error rate of the communication signal, and the bit error rate of the communication signal is used as the detection result of the optical fiber communication system.

[0004] However, in the current traditional technology, only a single type of communication signal is detected. With the emergence of synaesthesia integration technology, sensing signals and communication signals exist simultaneously in the optical fiber communication link. Since the introduction of sensing signals will have a certain impact on the communication signals, there is an urgent need for a method that can perform performance testing on the communication signals in the optical fiber communication system when the sensing signals and communication signals exist simultaneously. Summary of the invention

[0005] Based on this, it is necessary to provide a performance testing method, apparatus, computer equipment, computer-readable storage medium and computer program product to address the above technical issues.

[0006] In a first aspect, the present application provides a performance testing method, comprising:

[0007] Acquire a communication signal of a first preset band and a perception signal of a second preset band;

[0008] Determining performance impairment and nonlinear effect of the communication signal according to first state information of the communication signal when the perception signal is not present and second state information of the communication signal when the perception signal is present;

[0009] In the presence of the perception signal, the long-term bit error rate of the communication signal is determined, and the performance test result of the optical fiber communication system is determined according to the performance impairment, the nonlinear effect and the long-term bit error rate.

[0010] In one embodiment, the step of acquiring a communication signal in a first preset band includes:

[0011] Generating an initial communication signal of a first preset band in a test channel, and generating a filling signal in a non-test channel, to build a fully loaded communication environment;

[0012] In the full-load communication environment, a communication signal of the first preset band in the test channel is obtained.

[0013] In one of the embodiments, the first state information includes a first optical signal-to-noise ratio, and the second state information includes a second optical signal-to-noise ratio;

[0014] The determining, according to the first state information of the communication signal when the perception signal is not present and the second state information of the communication signal when the perception signal is present, the performance impairment of the communication signal comprises:

[0015] Determine, based on the noise of the target noise intensity, the first optical signal-to-noise ratio corresponding to the communication signal when the perception signal is not present, and the second optical signal-to-noise ratio corresponding to the communication signal when the perception signal is present;

[0016] A performance impairment of the communication signal is determined based on the first optical signal-to-noise ratio and the second optical signal-to-noise ratio.

[0017] In one embodiment, the determining, based on the noise of the target noise intensity, the first optical signal-to-noise ratio corresponding to the communication signal when the perception signal is not present, and the second optical signal-to-noise ratio corresponding to the communication signal when the perception signal is present, comprises:

[0018] In the absence of the perception signal, initial noise is added and the noise intensity of the initial noise is adjusted until the pre-correction bit error rate of the communication signal reaches a preset bit error rate to obtain a target noise;

[0019] Determine the noise intensity corresponding to the target noise as the target noise intensity, and determine a first optical signal-to-noise ratio corresponding to the communication signal when the perception signal is not present under the target noise intensity;

[0020] In the presence of the perception signal, the target noise of the target noise intensity is added to determine a second optical signal-to-noise ratio corresponding to the communication signal under the target noise intensity and in the presence of the perception signal.

[0021] In one embodiment, after determining the performance impairment of the communication signal according to the first optical signal-to-noise ratio and the second optical signal-to-noise ratio, the method further includes:

[0022] Acquire a first constellation diagram corresponding to the communication signal when the perception signal is not present and a second constellation diagram corresponding to the communication signal when the perception signal is present;

[0023] The first constellation diagram and the second constellation diagram are analyzed to obtain analysis results, and the analysis results and the first constellation diagram and the second constellation diagram are output for display.

[0024] In one of the embodiments, the first state information includes a first target fiber input power, and the second state information includes a second target fiber input power;

[0025] The determining the nonlinear effect of the communication signal according to the first state information of the communication signal when the perception signal is not present and the second state information of the communication signal when the perception signal is present comprises:

[0026] In the absence of the sensing signal, determining a first target fiber-input power of the communication signal;

[0027] In the presence of the sensing signal, determining a second target fiber-input power of the communication signal;

[0028] The nonlinear effect of the communication signal is determined according to the first target fiber-input power and the second target fiber-input power.

[0029] In a second aspect, the present application also provides a performance testing device, comprising:

[0030] A first acquisition module, used to acquire a communication signal of a first preset band and a perception signal of a second preset band;

[0031] A testing module, configured to determine performance impairment and nonlinear effect of the communication signal based on first state information of the communication signal when the perception signal is not present and second state information of the communication signal when the perception signal is present;

[0032] The first analysis module is used to determine the long-term bit error rate of the communication signal in the presence of the perception signal, and determine the performance test result of the optical fiber communication system according to the performance impairment, the nonlinear effect and the long-term bit error rate.

[0033] In one of the embodiments, the first acquisition module is specifically used to generate an initial communication signal of a first preset band in a test channel, and to generate a filling signal in a non-test channel, so as to construct a fully loaded communication environment;

[0034] In the full-load communication environment, a communication signal of the first preset band in the test channel is obtained.

[0035] In one embodiment, the first state information includes a first optical signal-to-noise ratio, and the second state information includes a second optical signal-to-noise ratio; the test module is specifically configured to determine, based on the noise of the target noise intensity, the first optical signal-to-noise ratio corresponding to the communication signal when the perception signal is not present, and the second optical signal-to-noise ratio corresponding to the communication signal when the perception signal is present;

[0036] A performance impairment of the communication signal is determined based on the first optical signal-to-noise ratio and the second optical signal-to-noise ratio.

[0037] In one embodiment, the test module is specifically used to add initial noise and adjust the noise intensity of the initial noise in the absence of the perception signal until the pre-correction bit error rate of the communication signal reaches a preset bit error rate to obtain the target noise;

[0038] Determine the noise intensity corresponding to the target noise as the target noise intensity, and determine a first optical signal-to-noise ratio corresponding to the communication signal when the perception signal is not present under the target noise intensity;

[0039] In the presence of the perception signal, the target noise of the target noise intensity is added to determine a second optical signal-to-noise ratio corresponding to the communication signal under the target noise intensity and in the presence of the perception signal.

[0040] In one embodiment, the device further comprises:

[0041] A second acquisition module, used to acquire a first constellation diagram corresponding to the communication signal when the perception signal is not present and a second constellation diagram corresponding to the communication signal when the perception signal is present;

[0042] The second analysis module is used to analyze the first constellation diagram and the second constellation diagram to obtain analysis results, and output and display the analysis results and the first constellation diagram and the second constellation diagram.

[0043] In one of the embodiments, the first state information includes a first target fiber input power, and the second state information includes a second target fiber input power;

[0044] The test module is specifically used to determine the first target fiber-input power of the communication signal in the absence of the perception signal;

[0045] In the presence of the sensing signal, determining a second target fiber-input power of the communication signal;

[0046] The nonlinear effect of the communication signal is determined according to the first target fiber-input power and the second target fiber-input power.

[0047] In a third aspect, the present application further provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0048] Acquire a communication signal of a first preset band and a perception signal of a second preset band;

[0049] Determining performance impairment and nonlinear effect of the communication signal according to first state information of the communication signal when the perception signal is not present and second state information of the communication signal when the perception signal is present;

[0050] In the presence of the perception signal, the long-term bit error rate of the communication signal is determined, and the performance test result of the optical fiber communication system is determined according to the performance impairment, the nonlinear effect and the long-term bit error rate.

[0051] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the following steps are implemented:

[0052] Acquire a communication signal of a first preset band and a perception signal of a second preset band;

[0053] Determining performance impairment and nonlinear effect of the communication signal according to first state information of the communication signal when the perception signal is not present and second state information of the communication signal when the perception signal is present;

[0054] In the presence of the perception signal, the long-term bit error rate of the communication signal is determined, and the performance test result of the optical fiber communication system is determined according to the performance impairment, the nonlinear effect and the long-term bit error rate.

[0055] In a fifth aspect, the present application further provides a computer program product, including a computer program, which implements the following steps when executed by a processor:

[0056] Acquire a communication signal of a first preset band and a perception signal of a second preset band;

[0057] Determining performance impairment and nonlinear effect of the communication signal according to first state information of the communication signal when the perception signal is not present and second state information of the communication signal when the perception signal is present;

[0058] In the presence of the perception signal, the long-term bit error rate of the communication signal is determined, and the performance test result of the optical fiber communication system is determined according to the performance impairment, the nonlinear effect and the long-term bit error rate.

[0059] The above-mentioned performance testing method, apparatus, computer equipment, computer-readable storage medium and computer program product, by adopting a first signal generating device to generate a communication signal of a first preset band, and combining it with a perception signal of a second preset band generated by a second signal generating device, can comprehensively evaluate the impact of the perception signal on the communication signal after the perception signal is introduced into the optical fiber communication system, and not only quantify the performance damage and nonlinear effects of the communication signal, but also determine the long-term bit error rate when the perception signal exists, thereby providing accurate and quantifiable performance test results, providing data support for optimizing the coordinated work of sensing and communication signals, and ensuring the reliability and long-term stability of the optical fiber communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0061] Figure 1 An application environment diagram of a performance testing method in an embodiment;

[0062] Figure 2 A schematic diagram of a performance testing method in one embodiment;

[0063] Figure 3 A schematic diagram of a process of injecting a communication signal in one embodiment;

[0064] Figure 4 A schematic diagram of a process for quantifying performance impairment of a communication signal in one embodiment;

[0065] Figure 5 is a schematic diagram of a process for determining an optical signal-to-noise ratio in one embodiment;

[0066] Figure 6 A schematic diagram of a process of outputting a constellation diagram in one embodiment;

[0067] Figure 7 A schematic diagram of a process for quantifying nonlinear effects in one embodiment;

[0068] Figure 8 A schematic diagram of an example of a performance testing method in an embodiment;

[0069] Fig. 9 is a structural block diagram of a performance testing device in one embodiment;

[0070] Fig.10 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0072] With the development of modern communication technology, wavelength division multiplexing (WDM) systems have been widely used in optical fiber communications, especially C+L band systems, which are widely used for high-speed data transmission due to their large capacity and long-distance transmission advantages. However, in order to further improve the intelligent management level of the network and realize real-time monitoring of optical fiber links, optical fiber sensing technology (for example, OTDR) has been gradually introduced. Optical fiber sensing technology can detect the health status of optical fibers, such as breakpoints, attenuation, and external disturbances, thereby providing important data support for the operation and maintenance of communication networks.

[0073] With the continuous growth of network demand, the integrated system of communication and sensing will become an important part of the future intelligent optical network. The traditional single communication or sensing system can no longer meet the needs of efficient operation and maintenance, and a system with coordinated operation of communication and sensing functions is needed. After the introduction of OTDR equipment to detect the health status of the optical fiber, the OTDR equipment generates a sensing signal and injects the sensing signal into the optical fiber link. The OTDR equipment detects the strength and delay of the reflected signal corresponding to the sensing signal, and introduces the sensing function in the optical fiber communication system to determine the health status of the optical fiber such as optical fiber breakpoints, vibration, corrosion aging and abnormal loss.

[0074] However, as the sensing signal is injected into the optical fiber link, the sensing signal and the communication signal coexist in the same optical fiber. The typical sensing signal wavelength is 1510nm, while the C+L band communication signal covers the range of 1530nm-1625nm. Since the power of the OTDR sensing signal is usually high (about 20 dBm), while the single-wave power of the communication signal is only 6 dBm, this power difference may cause a series of problems. For example, high-power sensing signals may cause stimulated Raman scattering (SRS), crosstalk and nonlinear effects, resulting in the deterioration of the optical signal-to-noise ratio (OSNR) of the communication signal, and even an increase in the bit error rate. Traditional methods mostly test the communication or sensing performance independently, and cannot provide a comprehensive analysis when the two coexist. That is, the lack of effective evaluation methods and data support in traditional technologies hinders the integration and optimization of communication and sensing systems. Therefore, there is currently a lack of a systematic evaluation method to quantify the specific impact of sensing signals on communication signals.

[0075] The performance testing method provided in the embodiment of the present application can be applied to Figure 1 In the application environment shown. The optical fiber communication system 100 includes an OUT (Optical Transform Unit) board, a WSS (Wavelength Selective Switch) combiner and splitter, an OSA (Optical Spectrum Analyzer), an OTDR, a VOA (Variable Optical Attenuator), an OA (Optical Amplifier), an optical fiber, and a network management system. The optical fiber communication system 100 obtains a communication signal of a first preset wavelength band and a perception signal of a second preset wavelength band; the optical fiber communication system 100 determines the performance impairment and nonlinear effect of the communication signal according to the first state information of the communication signal when the perception signal does not exist and the second state information of the communication signal when the perception signal exists; in the case of the perception signal, the optical fiber communication system 100 determines the long-term bit error rate of the communication signal, and determines the performance test result of the optical fiber communication system according to the performance impairment, the nonlinear effect, and the long-term bit error rate. Among them, the network management system is used to monitor and manage the operating status, performance parameters and fault conditions of the optical fiber communication system. For example, the network management system obtains the constellation diagram of the communication signal in real time through the interface with the optical transmission equipment (such as OUT board, programmable WSS, etc.), and records the error data of the communication signal, including bit error rate (BER), pre-correction bit error rate (Pre-FEC BER), etc., for analyzing the transmission quality of the signal. Optical fiber types include G652, G654, hollow core fiber, and multi-core fiber.

[0076] In an exemplary embodiment, Figure 2 As shown, a performance testing method is provided, which is applied to Figure 1 The optical fiber communication system in the embodiment is taken as an example to illustrate, and the method includes the following steps 202 to 206. Among them:

[0077] Step 202: Acquire a communication signal in a first preset band and a perception signal in a second preset band.

[0078] In an embodiment of the present application, the first preset band includes 1524.89 nm (196.60 THz), 1555.75 nm (192.70 THz), 1590.83 nm (188.45 THz) and 1625.77 nm (184.40 THz), the wavelengths of the second preset band include 1310 nm, 1510 nm, 1550 nm, and the power of the perception signal is 20 dBm.

[0079] The OUT (Optical Transport Unit) board is the core component of the optical transmission system and is responsible for generating high-bandwidth communication signals. In this embodiment, the optical fiber communication system generates a C+L band 400G communication signal through the OUT board. The C band generally refers to the optical wavelength range of 1530 nm to 1565 nm, and the L band refers to the optical wavelength range of 1565 nm to 1625 nm. The C+L band combines these two bands to provide a wider spectrum resource to support higher capacity communications. Therefore, the wavelength of the communication signal in the optical fiber communication system can be selected from the test channel number [1#, 27#, 53#, 80#], and the corresponding wavelengths and frequencies are: 1#: 1524.89 nm (196.60 THz), 27#: 1555.75 nm (192.70 THz), 53#: 1590.83 nm (188.45 THz), 80#: 1625.77 nm (184.40 THz). For the sensing signal, the optical fiber communication system couples the OTDR sensing signal into the optical fiber communication system through a combiner board. The wavelength of the second preset band corresponding to the sensing signal can be 1310nm, 1510nm or 1550nm wavelength injected into the OTDR sensing signal, and the sensing signal power can be set to 20dBm. The communication signals and sensing signals in the C+L band system may involve multi-channel combinations and different sensing modes. For example, the optical fiber communication system can use 4, 6, or 8-channel combined communication signals and perform sensing in pulse mode or continuous mode. Traditional technologies cannot fully cover the performance impact of different wavelength combinations, sensing modes, and optical fiber types on optical fiber communication systems. Through the performance testing method of the present invention, the test combination can be flexibly adjusted according to the actual scenario to ensure the performance stability of the optical fiber communication system in various scenarios.

[0080] Step 204: Determine the performance impairment and nonlinear effect of the communication signal based on the first state information of the communication signal when the perception signal does not exist and the second state information of the communication signal when the perception signal exists.

[0081] In an embodiment of the present application, the optical fiber communication system evaluates the performance impairment and nonlinear effect of the communication signal by comparing the state information of the communication signal under the condition of the presence or absence of the perception signal. Specifically, when the perception signal is not injected, the optical fiber communication system measures and collects the first state information of the communication signal when the perception signal is not present. After obtaining the first state information, the optical fiber communication system generates a perception signal under the same conditions as when the communication signal is injected, and after the perception signal is generated, measures and collects the second state information of the communication signal when the perception signal is present. The first state information and the second state information may include the optical signal-to-noise ratio (OSNR), bit error rate (BER), constellation diagram and Q factor of the communication signal. Then, the new optical fiber communication system compares the change in the key performance indicators in the first state information and the second state information through the network management system, determines the change in the signal quality of the communication signal after the perception signal is introduced, and quantifies the performance impairment caused by the perception signal to the communication signal after the perception signal is introduced according to the change in the signal quality, and quantifies the nonlinear effect caused by the perception signal.

[0082] In the transmission link of the optical fiber communication system, the ASE (Amplified Spontaneous Emission) noise source is introduced through the coupler, and the noise intensity is controlled by the adjustable optical attenuator to test the OSNR (Optical Signal-to-Noise Ratio) tolerance. The constellation diagram and error data of the communication signal can be obtained by using the network management system. The state of the fill wave can be confirmed by using the spectrum analyzer, and the spectrum power distribution can be monitored at the same time.

[0083] Step 206, in the presence of the sensing signal, determine the long-term bit error rate of the communication signal, and determine the performance test result of the optical fiber communication system according to the performance impairment, nonlinear effect and the long-term bit error rate.

[0084] In the embodiment of the present application, in the presence of a sensing signal, the optical fiber communication system tests the long-term bit error rate (LT-BER), combines the evaluation results of performance damage and nonlinear effects, and finally determines the performance test results of the optical fiber communication system. Specifically, the optical fiber communication system tests the bit error rate in the communication link under 24-hour full load conditions as the long-term bit error rate, that is, in the presence of a sensing signal, the network management system continuously monitors the bit error rate of the communication signal, records the bit error rate data over a period of time, and obtains the long-term bit error rate of the communication signal through statistical analysis. Finally, the optical fiber communication system comprehensively evaluates the performance damage, nonlinear effects and long-term bit error rate, and comprehensively analyzes the performance test results of the communication signal after the introduction of the sensing signal. Through a comprehensive evaluation method, the cost and performance loss of the introduction of the sensing signal are clarified, providing a scientific basis for the design of the integrated system of communication and supporting the development of future intelligent optical networks.

[0085] In the above performance testing method, by using a first signal generating device to generate a communication signal of a first preset band, and combining it with a perception signal of a second preset band generated by a second signal generating device, it is possible to comprehensively evaluate the impact of the perception signal on the communication signal after the perception signal is introduced into the optical fiber communication system. It not only quantifies the performance damage and nonlinear effects of the communication signal, but also determines the long-term bit error rate when the perception signal exists, thereby providing accurate and quantifiable performance test results, providing data support for optimizing the coordinated work of sensing and communication signals, and ensuring the reliability and long-term stability of the optical fiber communication system.

[0086] In an exemplary embodiment, in a WDM system, if some wavelengths are not used, the gain distribution of the optical amplifier will be unstable, further exacerbating the nonlinear loss of the system. In order to simulate the actual operation of the system, it is necessary to introduce a fill wave signal and inject an optical signal without data load into the idle channel to ensure that the system maintains power balance under a full load environment. Figure 3 As shown, step 202 includes steps 302 to 304. Among them:

[0087] Step 302: Generate an initial communication signal of a first preset band in a test channel, and generate a filling signal in a non-test channel to build a fully loaded communication environment.

[0088] In an embodiment of the present application, the fiber optic communication system generates a fill wave on a non-test channel through a programmable WSS as a fill signal. The fill signal is used to simulate other communication signals of the fiber optic communication system in actual applications, thereby forming a fully loaded communication environment that is the same as in a real synaesthesia integration application.

[0089] In a specific embodiment, the test channels of the initial communication signal can be 1#, 27#, 53#, and 80#, and the corresponding wavelengths and frequencies are: 1#: 1524.89 nm (196.60 THz), 27#: 1555.75 nm (192.70 THz), 53#: 1590.83 nm (188.45 THz), and 80#: 1625.77 nm (184.40 THz). In the non-test channel, the optical fiber communication system can pre-set the wavelength planning of the entire C+L band to ensure that each wavelength channel is effectively utilized. On the non-test channel, WSS is used to generate a communication signal similar to the test channel to ensure power balance of all channels and avoid gain instability and increased nonlinear effects caused by idle channels. Among them, the fill signal is usually a simulated communication signal with similar characteristics to the actual communication signal (for example, modulation format, rate, etc.). Finally, the generated communication signal and fill signal are transmitted through the optical fiber transmission link and enter the subsequent optical equipment and analysis system.

[0090] Step 304: Under a full-load communication environment, a communication signal of a first preset band in a test channel is obtained.

[0091] In an embodiment of the present application, when the transmission link of the optical fiber communication system is in a fully loaded environment, the optical fiber communication system obtains the communication signal of the first preset band in the test channel through the network management system or the optical receiving device. Specifically, the optical fiber communication system can receive the communication signal in the test channel through the optical receiving device, and collect the data of the communication signal through the network management system or the optical spectrum analyzer, including OSNR, BER, constellation diagram, Q factor, etc.

[0092] In this embodiment, the fill wave ensures the power balance of all channels, avoids gain instability and increased nonlinear effects due to channel idleness, and injects fill signals into non-test channels to ensure the power balance of the system under full load conditions, avoids gain instability and enhanced nonlinear effects of optical amplifiers. The introduction of fill signals improves the authenticity of the test results, makes the test results closer to the actual network conditions, and provides reliable data support for the design and optimization of communication and sensor fusion systems.

[0093] In an exemplary embodiment, the first state information includes a first optical signal-to-noise ratio, and the second state information includes a second optical signal-to-noise ratio; Figure 4 As shown, step 204 includes steps 402 to 404. Among them:

[0094] Step 402: Determine a first optical signal-to-noise ratio corresponding to a communication signal when no perception signal exists and a second optical signal-to-noise ratio corresponding to a communication signal when a perception signal exists based on the noise of the target noise intensity.

[0095] In the embodiment of the present application, the scattering, attenuation, and nonlinear effects of the optical fiber in the optical fiber communication system may cause noise, and then the optical fiber communication system can pre-set the target noise intensity according to the characteristics of the optical fiber communication system and the actual application scenario, and introduce the target noise intensity in the test environment to simulate the noise situation in the actual application.

[0096] When there is no sensing signal (only communication signal), the optical fiber communication system collects communication signal data through optical receiving equipment or network management system. Based on the communication signal and the introduced target noise, the first optical signal-to-noise ratio (OSNR1) of the communication signal is calculated. The first optical signal-to-noise ratio is obtained by the ratio of the law of the communication signal to the noise power.

[0097] At the same time, based on the communication signal, the optical fiber communication system introduces the perception signal through the multiplexing board or ODTR device to simulate the coexistence of the communication signal and the perception signal in the actual synaesthesia integration application. When the perception signal exists, the mixed signal data of the communication signal and the perception signal is collected again through the optical receiving device or the network management system. Based on the mixed signal and the introduced target noise, the second optical signal-to-noise ratio (OSNR2) of the communication signal is calculated, and then the first optical signal-to-noise ratio corresponding to the communication signal when there is no perception signal in the optical fiber communication system and the second optical signal-to-noise ratio corresponding to the communication signal when there is a perception signal are obtained.

[0098] Step 404: determine the performance impairment of the communication signal according to the first optical signal-to-noise ratio and the second optical signal-to-noise ratio.

[0099] In the embodiment of the present application, the optical fiber communication system records the first optical signal-to-noise ratio (OSNR1) and the second optical signal-to-noise ratio (OSNR2) through the network management system, and calculates the change (ΔOSNR=OSNR1-OSNR2) of the first optical signal-to-noise ratio (OSNR1) and the second optical signal-to-noise ratio (OSNR2), and quantifies the performance damage of the perception signal to the communication signal through the change of OSNR, wherein the reduction of OSNR reflects the interference and damage degree of the perception signal to the communication signal. A larger change (ΔOSNR) indicates that the perception signal interferes more with the communication signal and the performance damage is more serious.

[0100] In this embodiment, the first optical signal-to-noise ratio and the second optical signal-to-noise ratio are used as numerical basis for quantifying the influence of the perception signal on the performance of the communication signal. The first optical signal-to-noise ratio directly reflects the quality of the communication signal in a noisy environment and is a key indicator for evaluating the reliability of signal transmission. The change of the first optical signal-to-noise ratio can intuitively reflect the degree of interference of the perception signal on the communication signal. Therefore, it has high sensitivity and accuracy in quantifying performance damage. Therefore, the first optical signal-to-noise ratio and the second optical signal-to-noise ratio can effectively evaluate the interference caused by the perception signal and provide reliable data support for the optimization and fault diagnosis of the optical fiber communication system.

[0101] In an exemplary embodiment, Figure 5 As shown, step 402 includes steps 502 to 506. Among them:

[0102] Step 502: in the absence of a perception signal, initial noise is added and the noise intensity of the initial noise is adjusted until the pre-correction bit error rate of the communication signal reaches a preset bit error rate, thereby obtaining a target noise.

[0103] The preset bit error rate may be 2e-2.

[0104] In the embodiment of the present application, for the OSNR tolerance test of the communication signal in the optical fiber communication system, it is necessary to pre-test the noise intensity of the target noise to simulate the actual noise in the optical fiber communication system. The initial noise is introduced in the test environment and added to the communication signal. The optical fiber communication system adjusts the ASE noise intensity through the VOA (variable optical attenuator) so that the pre-correction bit error rate (Pre-FEC BER) of the communication signal in the test channel reaches 2e-2, and the noise intensity of the ASE noise at this time is determined as the noise intensity required by the target noise, thereby obtaining the target noise. Specifically, the optical fiber communication system monitors the pre-correction bit error rate of the communication signal in real time through the network management system and the bit error rate tester, and gradually adjusts the noise intensity of the initial noise so that the pre-correction bit error rate of the communication signal reaches the preset 2e-2. For example, if the pre-correction bit error rate is lower than the preset bit error rate, the noise intensity of the initial noise is increased; if the pre-correction bit error rate is higher than the preset bit error rate, the noise intensity of the initial noise is reduced; by finely adjusting the noise intensity, it is ensured that the pre-correction bit error rate reaches the preset 2e-2. When the pre-correction bit error rate of the communication signal reaches a preset value of 2e-2, the noise intensity of the initial noise at this time is recorded and determined as the target noise.

[0105] Step 504: determine the noise intensity corresponding to the target noise as the target noise intensity, and determine a first optical signal-to-noise ratio corresponding to the communication signal when there is no perception signal under the target noise intensity.

[0106] In the embodiment of the present application, the optical fiber communication system determines the noise intensity corresponding to the target noise as the target noise intensity, and introduces the noise of the target noise intensity into the communication signal. When there is no perception signal, the optical fiber communication system calculates the first optical signal-to-noise ratio according to the same principle as in step 402, and the specific calculation process of the first optical signal-to-noise ratio is not repeated in this embodiment.

[0107] Step 506: in the presence of the perception signal, add target noise of the target noise intensity, and determine a second optical signal-to-noise ratio corresponding to the communication signal under the target noise intensity and in the presence of the perception signal.

[0108] In an embodiment of the present application, the optical fiber communication system adds noise of a target noise intensity, and calculates a second optical signal-to-noise ratio (OSNR) of the communication signal when a perception signal is present, so as to evaluate the impact of the perception signal on the communication signal. Specifically, on the basis of the communication signal, a perception signal is introduced to simulate the coexistence of signals in actual applications, while ensuring that the parameters of the perception signal (for example, power, wavelength, modulation format, etc.) are consistent with the actual application scenario. In the presence of a perception signal, the optical fiber communication system adds noise of a target noise intensity to mix the communication signal, the perception signal, and the target noise together to simulate the signal environment in actual applications. Finally, the optical fiber communication system calculates the second optical signal-to-noise ratio according to the same principle as in step 402. The specific calculation process of the first optical signal-to-noise ratio will not be repeated in this embodiment.

[0109] In this embodiment, the target noise intensity is determined by adjusting the noise intensity in the absence of a perception signal so that the pre-correction bit error rate of the communication signal reaches a preset value; then, in the presence of a perception signal, the target noise intensity is added and the second optical signal-to-noise ratio of the communication signal is calculated. This can make the test environment closer to the actual application environment, improve the authenticity of the test results, and thereby improve the accuracy of the performance test results.

[0110] In an exemplary embodiment, Figure 6 As shown, after step 404, the method further includes steps 602 to 604. Among them:

[0111] Step 602: Acquire a first constellation diagram corresponding to the communication signal when the perception signal does not exist and a second constellation diagram corresponding to the communication signal when the perception signal exists.

[0112] In the embodiment of the present application, the optical fiber communication system obtains the first constellation diagram and the second constellation diagram of the test channel respectively under the condition of the presence or absence of the sensing signal. Specifically, when there is no sensing signal, the optical fiber communication system collects communication signal data through the network management system, and uses a signal analysis tool (for example, an oscilloscope, a signal analyzer, etc.) to generate a first constellation diagram of the communication signal when there is no sensing signal.

[0113] Based on the communication signal, the perception signal is introduced to simulate the signal coexistence in actual applications. The optical fiber communication system collects mixed signal data including communication signals and perception signals through the network management system, and uses signal analysis tools to generate a second constellation diagram of the communication signal in the presence of the perception signal.

[0114] Step 604: Analyze the first constellation diagram and the second constellation diagram to obtain analysis results, and output and display the analysis results and the first constellation diagram and the second constellation diagram.

[0115] In the embodiment of the present application, the first constellation diagram and the second constellation diagram are compared to determine the change in the degree of cracking of the first constellation diagram and the second constellation diagram, and the change in the degree of cracking can intuitively reflect the interference of the perception signal on the communication signal. Furthermore, the optical fiber communication system qualitatively analyzes the degree of interference of the perception signal on the communication signal according to the change in the degree of cracking of the first constellation diagram and the second constellation diagram through the network management system. For example, a distorted shape or uneven distribution of scattered points indicates a large interference.

[0116] In an optional embodiment, a constellation diagram analysis model may be pre-set in the network management system, and the degree of cracking of the first constellation diagram and the second constellation diagram may be automatically analyzed according to the constellation diagram analysis model. Specifically, first, the collected constellation diagram is subjected to noise filtering processing by the constellation diagram analysis model, for example, Gaussian filtering is used to remove noise points in the image, the clarity of the constellation diagram is improved, and the contrast and detail resolution of the constellation diagram are improved by histogram equalization or other image enhancement techniques. Then, the distribution characteristics of the signal points in the constellation diagram are extracted, for example, the average position, dispersion degree, distribution area, etc. of the scattered points, and the shape characteristics of the constellation diagram are extracted, for example, the overall shape, symmetry, distortion degree, etc. of the constellation diagram. The difference between the first constellation diagram and the second constellation diagram in distribution characteristics and shape characteristics is calculated, for example, the Euclidean distance between the two constellations in the feature space is calculated, the larger the distance is, the greater the degree of cracking is, or the features of the constellation diagram are extracted as vectors, the difference between the feature vectors of the two constellations is calculated, and the angle or distance between the vectors is analyzed. Furthermore, whether the perception signal in the current test interferes with the communication signal is determined according to the threshold value of the set degree of cracking, and when the difference exceeds the threshold, it is determined that there is significant interference. The constellation diagram analysis model divides the interference degree into different levels, such as slight interference, medium interference, severe interference, etc., according to the size of the vector difference and the difference interval corresponding to each pre-set interference degree. Finally, the network management system obtains the output of the constellation diagram analysis model to generate analysis results, including the cracking characteristics, difference values, interference levels, etc. of the constellation diagram, and marks the difference area in the first constellation diagram and the second constellation diagram to intuitively display the degree of cracking, and outputs the test report, the first constellation diagram, the second constellation diagram, and the mark of the difference area.

[0117] In addition, the analysis results and the first constellation diagram and the second constellation diagram are output and displayed, so that the tester can observe the degree of cracking of the constellation diagram to qualitatively analyze the interference of the sensor signal.

[0118] In this embodiment, by acquiring and analyzing the communication signal constellation diagram when the perception signal is present and when the perception signal is not present, the interference of the perception signal on the communication signal is qualitatively evaluated, and intuitive interference information can be provided.

[0119] In an exemplary embodiment, the first state information includes a first target fiber input power, and the second state information includes a second target fiber input power; Figure 7 As shown, step 104 includes steps 702 to 706. Among them:

[0120] Step 702: In the absence of a sensing signal, determine a first target fiber-input power of a communication signal.

[0121] In an embodiment of the present application, the optical fiber communication system determines the optimal fiber-input power corresponding to the communication signal under the condition of presence or absence of a sensor signal by adjusting the fiber-input power of the channel, and calculates the difference between the two to quantify the nonlinear effect introduced by the sensor signal. The influence of the nonlinear effect of the sensor signal on the communication channel is quantified to ensure that the optical fiber communication system operates at the optimal working point. Specifically, at the input end of the optical fiber communication link, only the communication signal is input, and no sensing signal is introduced. At this time, the fiber-input power of the communication signal is adjusted by the power controller, and the transmission performance of the communication signal at different fiber-input powers is detected, such as signal quality, bit error rate (BER), signal-to-noise ratio (SNR), etc. According to the transmission performance under different fiber-input powers, a relationship curve between the communication signal fiber-input power and the transmission performance is drawn to find the fiber-input power point with the best performance, and then the first target fiber-input power is obtained.

[0122] Step 704: In the presence of the sensing signal, determine a second target fiber-input power of the communication signal.

[0123] In the embodiment of the present application, at the input end of the optical fiber communication link, the communication signal and the perception signal are input simultaneously. Then, the optical fiber communication system determines the second target fiber input power corresponding to the communication signal in the presence of the perception signal according to the principle of determining the same first target fiber input power in step 702. The measurement process of the second target fiber input power is not described in detail in the embodiment of the present application.

[0124] Step 706: determine the nonlinear effect of the communication signal according to the first target fiber-input power and the second target fiber-input power.

[0125] In the embodiment of the present application, the optical fiber communication system analyzes the influence of the nonlinear effect by comparing the first target fiber input power and the second target fiber input power to evaluate the interference of the perception signal on the communication signal and the system performance. Specifically, the optical fiber communication system first calculates the difference between the first target fiber input power and the second target fiber input power, and evaluates the nonlinear effect caused by the introduction of the perception signal based on the difference between the first target fiber input power and the second target fiber input power, wherein the nonlinear effect may cause problems such as signal distortion and decreased signal-to-noise ratio.

[0126] In this embodiment, the interference degree of the perception signal on the communication signal is quantitatively evaluated through the analysis of nonlinear effects. The nonlinear effect introduced by the perception signal can be quantified, thereby accurately evaluating the interference degree of the perception signal on the communication signal, providing precise and quantifiable performance test results, providing data support for optimizing the coordinated work of sensing and communication signals, and ensuring the reliability and long-term stability of the optical fiber communication system.

[0127] In a specific embodiment, Figure 8 As shown, an example of a performance testing method is provided, including:

[0128] Step 801, building a test system;

[0129] Step 802, introducing communication signals and sensor signals;

[0130] Step 803, analyzing the constellation diagram;

[0131] Step 804, testing OSNR tolerance;

[0132] Step 805, testing the optimal fiber input power;

[0133] Step 806, calculating the sensing cost;

[0134] Step 807: result analysis and optimization.

[0135] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0136] Based on the same inventive concept, the embodiment of the present application also provides a performance testing device for implementing the above-mentioned performance testing method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above-mentioned method, so the specific limitations in the one or more performance testing device embodiments provided below can refer to the limitations on the performance testing method above, and will not be repeated here.

[0137] In an exemplary embodiment, Fig. 9As shown, a performance testing device 900 is provided, including: a first acquisition module 901, a testing module 902 and a first analysis module 903, wherein:

[0138] A first acquisition module 901 is used to acquire a communication signal in a first preset band and a perception signal in a second preset band;

[0139] A testing module 902, configured to determine performance impairment and nonlinear effects of the communication signal based on first state information of the communication signal when there is no perception signal and second state information of the communication signal when there is a perception signal;

[0140] The first analysis module 903 is used to determine the long-term bit error rate of the communication signal in the presence of the sensing signal, and determine the performance test result of the optical fiber communication system according to the performance impairment, nonlinear effect and the long-term bit error rate.

[0141] In one embodiment, the first acquisition module 901 is specifically used to generate an initial communication signal of a first preset band in a test channel, and to generate a filling signal in a non-test channel, so as to construct a fully loaded communication environment;

[0142] Under a full-load communication environment, a communication signal of a first preset band in a test channel is obtained.

[0143] In one embodiment, the first state information includes a first optical signal-to-noise ratio, and the second state information includes a second optical signal-to-noise ratio; the testing module 902 is specifically configured to determine, based on the noise of the target noise intensity, a first optical signal-to-noise ratio corresponding to the communication signal when there is no perception signal, and a second optical signal-to-noise ratio corresponding to the communication signal when there is a perception signal;

[0144] A performance impairment of the communication signal is determined based on the first optical signal-to-noise ratio and the second optical signal-to-noise ratio.

[0145] In one embodiment, the test module 902 is specifically used to add initial noise and adjust the noise intensity of the initial noise in the absence of a perception signal until the pre-correction bit error rate of the communication signal reaches a preset bit error rate to obtain a target noise;

[0146] Determine the noise intensity corresponding to the target noise as the target noise intensity, and determine a first optical signal-to-noise ratio corresponding to the communication signal when there is no perception signal under the target noise intensity;

[0147] In the presence of the perception signal, target noise of the target noise intensity is added to determine a second optical signal-to-noise ratio corresponding to the communication signal under the target noise intensity and in the presence of the perception signal.

[0148] In one embodiment, the apparatus 900 further includes:

[0149] A second acquisition module, used to acquire a first constellation diagram corresponding to the communication signal when there is no perception signal and a second constellation diagram corresponding to the communication signal when there is a perception signal;

[0150] The second analysis module is used to analyze the first constellation diagram and the second constellation diagram to obtain analysis results, and output and display the analysis results and the first constellation diagram and the second constellation diagram.

[0151] In one of the embodiments, the first state information includes a first target fiber input power, and the second state information includes a second target fiber input power;

[0152] The test module 902 is specifically used to determine the first target fiber-input power of the communication signal in the absence of a sensing signal;

[0153] In the presence of the sensing signal, determining a second target fiber-input power of the communication signal;

[0154] The nonlinear effect of the communication signal is determined according to the first target fiber-input power and the second target fiber-input power.

[0155] Each module in the above performance test device can be implemented in whole or in part by software, hardware and their combination. Each module can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory in the computer device in the form of software, so that the processor can call and execute the operations corresponding to each module above.

[0156] In an exemplary embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as shown in FIG. Fig.10As shown. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. The processor, the memory and the input / output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, near field communication (NFC) or other technologies. When the computer program is executed by the processor, a performance testing method is implemented. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

[0157] Those skilled in the art will understand that Fig.10 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0158] In an exemplary embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0159] Acquire a communication signal of a first preset band and a perception signal of a second preset band;

[0160] Determining performance impairment and nonlinear effects of the communication signal based on first state information of the communication signal when the perception signal is not present and second state information of the communication signal when the perception signal is present;

[0161] In the presence of a sensing signal, the long-term bit error rate of the communication signal is determined, and the performance test result of the optical fiber communication system is determined based on performance impairments, nonlinear effects and long-term bit error rate.

[0162] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0163] Generating an initial communication signal of a first preset band in a test channel, and generating a filling signal in a non-test channel, to build a fully loaded communication environment;

[0164] Under a full-load communication environment, a communication signal of a first preset band in a test channel is obtained.

[0165] In one embodiment, the first state information includes a first optical signal-to-noise ratio, and the second state information includes a second optical signal-to-noise ratio; when the processor executes the computer program, the following steps are further implemented:

[0166] Determine, based on the noise of the target noise intensity, a first optical signal-to-noise ratio corresponding to the communication signal when no perception signal is present, and a second optical signal-to-noise ratio corresponding to the communication signal when the perception signal is present;

[0167] A performance impairment of the communication signal is determined based on the first optical signal-to-noise ratio and the second optical signal-to-noise ratio.

[0168] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0169] In the absence of a perception signal, initial noise is added and the noise intensity of the initial noise is adjusted until the pre-correction bit error rate of the communication signal reaches a preset bit error rate, thereby obtaining a target noise;

[0170] Determine the noise intensity corresponding to the target noise as the target noise intensity, and determine a first optical signal-to-noise ratio corresponding to the communication signal when there is no perception signal under the target noise intensity;

[0171] In the presence of the perception signal, target noise of the target noise intensity is added to determine a second optical signal-to-noise ratio corresponding to the communication signal under the target noise intensity and in the presence of the perception signal.

[0172] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0173] Acquire a first constellation diagram corresponding to the communication signal when the perception signal is not present and a second constellation diagram corresponding to the communication signal when the perception signal is present;

[0174] The first constellation diagram and the second constellation diagram are analyzed to obtain analysis results, and the analysis results and the first constellation diagram and the second constellation diagram are output for display.

[0175] In one embodiment, the first state information includes a first target fiber input power, and the second state information includes a second target fiber input power; when the processor executes the computer program, the following steps are also implemented:

[0176] In the absence of a sensing signal, determining a first target fiber-input power of a communication signal;

[0177] In the presence of the sensing signal, determining a second target fiber-input power of the communication signal;

[0178] The nonlinear effect of the communication signal is determined according to the first target fiber-input power and the second target fiber-input power.

[0179] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0180] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0181] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0182] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0183] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0184] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A performance testing method, characterized in that: The method comprises: Acquire a communication signal of a first preset band and a perception signal of a second preset band; Determining performance impairment and nonlinear effect of the communication signal according to first state information of the communication signal when the perception signal is not present and second state information of the communication signal when the perception signal is present; In the presence of the perception signal, the long-term bit error rate of the communication signal is determined, and the performance test result of the optical fiber communication system is determined according to the performance impairment, the nonlinear effect and the long-term bit error rate.

2. The method according to claim 1, characterized in that The step of acquiring a communication signal in a first preset band includes: Generating an initial communication signal of a first preset band in a test channel, and generating a filling signal in a non-test channel, to build a fully loaded communication environment; In the full-load communication environment, a communication signal of the first preset band in the test channel is obtained.

3. The method according to claim 1, characterized in that The first state information includes a first optical signal-to-noise ratio, and the second state information includes a second optical signal-to-noise ratio; The determining, according to the first state information of the communication signal when the perception signal is not present and the second state information of the communication signal when the perception signal is present, the performance impairment of the communication signal comprises: Determine, based on the noise of the target noise intensity, the first optical signal-to-noise ratio corresponding to the communication signal when the perception signal is not present, and the second optical signal-to-noise ratio corresponding to the communication signal when the perception signal is present; A performance impairment of the communication signal is determined based on the first optical signal-to-noise ratio and the second optical signal-to-noise ratio.

4. The method according to claim 3, characterized in that The determining, based on the noise of the target noise intensity, the first optical signal-to-noise ratio corresponding to the communication signal when the perception signal is not present, and the second optical signal-to-noise ratio corresponding to the communication signal when the perception signal is present, comprises: In the absence of the perception signal, initial noise is added and the noise intensity of the initial noise is adjusted until the pre-correction bit error rate of the communication signal reaches a preset bit error rate to obtain a target noise; Determine the noise intensity corresponding to the target noise as the target noise intensity, and determine a first optical signal-to-noise ratio corresponding to the communication signal when the perception signal is not present under the target noise intensity; In the presence of the perception signal, the target noise of the target noise intensity is added to determine a second optical signal-to-noise ratio corresponding to the communication signal under the target noise intensity and in the presence of the perception signal.

5. The method according to claim 3, characterized in that: After determining the performance impairment of the communication signal according to the first optical signal-to-noise ratio and the second optical signal-to-noise ratio, the method further includes: Acquire a first constellation diagram corresponding to the communication signal when the perception signal is not present and a second constellation diagram corresponding to the communication signal when the perception signal is present; The first constellation diagram and the second constellation diagram are analyzed to obtain analysis results, and the analysis results and the first constellation diagram and the second constellation diagram are output for display.

6. The method according to claim 1, characterized in that The first state information includes a first target fiber input power, and the second state information includes a second target fiber input power; The determining the nonlinear effect of the communication signal according to the first state information of the communication signal when the perception signal is not present and the second state information of the communication signal when the perception signal is present comprises: In the absence of the sensing signal, determining a first target fiber-input power of the communication signal; In the presence of the sensing signal, determining a second target fiber-input power of the communication signal; The nonlinear effect of the communication signal is determined according to the first target fiber-input power and the second target fiber-input power.

7. A performance testing device, characterized in that: The device comprises: A first acquisition module, used to acquire a communication signal of a first preset band and a perception signal of a second preset band; A testing module, configured to determine performance impairment and nonlinear effect of the communication signal based on first state information of the communication signal when the perception signal is not present and second state information of the communication signal when the perception signal is present; The first analysis module is used to determine the long-term bit error rate of the communication signal in the presence of the perception signal, and determine the performance test result of the optical fiber communication system according to the performance impairment, the nonlinear effect and the long-term bit error rate.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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