Method and device for calibrating broadband signal radio frequency power based on CW signal

Abstract

The invention discloses a method and device for calibrating broadband signal radio frequency power based on a CW signal, and belongs to the technical field of wireless communication, and the method comprises the steps: obtaining a frequency range of radio frequency communication equipment to be calibrated; generating a CW signal, adjusting the CW signal to a preset frequency point and preset digital power in a frequency range, and obtaining power gain values of the current CW signal under different attenuation values; generating a CW signal, adjusting the CW signal to rated digital power, keeping an attenuation value unchanged, and obtaining power compensation values of the current CW signal using different bandwidths at different frequency points in a frequency range; and adding the power gain values under different attenuation values and the power compensation values using different bandwidths under different frequency points to obtain calibrated broadband signal radio frequency power. According to the invention, on the premise of not wasting FPGA resources, the precision of radio frequency power control under different configurations of the equipment can be improved to the greatest extent, so that an effective guarantee is provided for signal coverage and site planning of operators.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and in particular, to a method and apparatus for calibrating the radio frequency power of a broadband signal based on a CW signal. Background Art

[0002] With the rapid development of current communication technologies and the increasing demand for data transmission, how to improve the communication rate and ensure the communication quality is an important goal in the development of communication technologies. The application of OFDMA (Orthogonal Frequency Division Multiple Access) technology has brought a qualitative breakthrough to communication. While the signal bandwidth is getting wider and wider, the spectrum utilization rate has also been greatly improved. Due to the extremely high spectrum utilization rate of this technology, it ensures that the communication technology with multiple subcarriers continues to be used from 4G to 5G, and the number of subcarriers has also become larger. The high-performance advantages make the requirements for various high-frequency, large-bandwidth, and high-power devices more and more common and demanding. Therefore, when designing devices, various different requirements need to be met, and different frequency bands, frequency points, and bandwidths need to be taken into account. In order to ensure the accuracy of power in various scenarios, manufacturers need to be able to cover various configurations during factory calibration to meet the accuracy and stability of radio frequency power under different conditions. However, the performance of radio frequency devices and filters at different frequency points is different, which leads to different losses for different subcarriers. The loss of a single subcarrier may not be particularly obvious compared with the expected value, but when the number of subcarriers reaches several hundred or even thousands, the cumulative error may become very obvious. Currently, there are mainly two power calibration schemes:

[0003] 1. Using an FPGA (Field Programmable Gate Array) to spontaneously generate a broadband signal for radio frequency calibration, such as a 100 MHz broadband signal. In this way, the power of the device can be much more accurate under a 100 MHz bandwidth configuration. However, the disadvantages are also very obvious. On the one hand, it greatly wastes the effective resources of the FPGA and increases the hardware cost. On the other hand, it is only applicable to a 100 MHz configuration and is very likely not to meet the requirements of other bandwidth configurations. In order to meet the signal calibration requirements of various different bandwidths, digital signals with different bandwidths need to be configured, which further wastes the resources of the FPGA.

[0004] 2. Using an FPGA to spontaneously generate a CW (Continuous Wave) signal for radio frequency calibration. This can save the resources of the FPGA, reduce the hardware cost, and improve the calibration efficiency. However, the disadvantages are also obvious. After all, CW signal calibration cannot accurately restore the power of the broadband signal composed of multiple carriers during actual use. In order to ensure the device performance, strict requirements must be made on the hardware. For example, the flatness of radio frequency devices, radio frequency amplifiers, and cavity filters must be very excellent, which also greatly increases other labor and material costs. Otherwise, it is very difficult to ensure the good radio frequency performance of the device. Summary of the Invention

[0005] The object of the present invention is to overcome the deficiencies in the prior art and provide a method and device for calibrating the radio frequency power of a broadband signal based on a CW signal, which can maximize the accuracy of radio frequency power control under different configurations of the device without wasting FPGA resources.

[0006] To achieve the above object, the present invention is implemented by the following technical solutions:

[0007] In a first aspect, the present invention provides a method for calibrating the radio frequency power of a broadband signal based on a CW signal, including:

[0008] Obtain the frequency range of the radio frequency communication device to be calibrated;

[0009] Generate a CW signal and adjust it to a preset frequency point and a preset digital power within the frequency range, and obtain the power gain value of the current CW signal at different attenuation values;

[0010] Generate a CW signal and adjust it to the rated digital power, keep the attenuation value unchanged, and obtain the power compensation value of the current CW signal at different frequency points within the frequency range using different bandwidths;

[0011] Add the power gain values at different attenuation values and the power compensation values at different frequency points within the frequency range using different bandwidths to obtain the calibrated radio frequency power of the broadband signal.

[0012] Optionally, the generating a CW signal and adjusting it to a preset frequency point and a preset digital power within the frequency range includes:

[0013] Send a CW signal through the FPGA, and adjust the CW signal to a preset frequency point within the frequency range through a radio frequency chip; adjust the digital power of the CW signal to the preset digital power through the FPGA.

[0014] Optionally, the obtaining the power gain value of the current CW signal at different attenuation values includes:

[0015] Traverse all gears through a digital step attenuator, and obtain the corresponding sampled power through a spectrum analyzer, denoted as the test power; subtract the test power from the preset digital power to obtain the power gain value.

[0016] Optionally, the obtaining the power compensation value of the current CW signal at different frequency points within the frequency range using different bandwidths includes:

[0017] Adjust the frequency point of the CW signal sequentially within the frequency range according to a preset gradient through a radio frequency chip, obtain the corresponding sampled power through a spectrum analyzer, and perform unit conversion to generate the scanned power;

[0018] Calculate the power of all subcarriers at each frequency point within the frequency range through the scanned power :

[0019]

[0020] Wherein, is the power of the nth sub - carrier at frequency point m, W is the power unit, is the frequency of the nth sub - carrier, are the upper and lower edge frequencies of the frequency band where the nth sub - carrier is located, is corresponding scanning power;

[0021] Calculate the broadband signal power of the frequency point according to the powers of all sub - carriers of the frequency point :

[0022]

[0023] Wherein, is the broadband signal power of frequency point m, dBm is the power unit, and N is the total number of sub - carriers within the bandwidth;

[0024] Subtract the rated digital power from the broadband signal power of the frequency point to obtain the power compensation value of the frequency point.

[0025] In a second aspect, the present invention provides a device for calibrating the radio - frequency power of a broadband signal based on a CW signal, including:

[0026] A frequency confirmation module, configured to obtain the frequency range of the radio - frequency communication device to be calibrated;

[0027] A gain calculation module, configured to generate a CW signal and adjust it to a preset frequency point and a preset digital power within the frequency range, and obtain the power gain value of the current CW signal at different attenuation values;

[0028] A compensation calculation module, configured to generate a CW signal and adjust it to the rated digital power, keep the attenuation value unchanged, and obtain the power compensation value of the current CW signal at different frequency points within the frequency range using different bandwidths;

[0029] A calibration calculation module, configured to add the power gain values at different attenuation values and the power compensation values at different frequency points using different bandwidths to obtain the calibrated radio - frequency power of the broadband signal.

[0030] Optionally, the obtaining of the power gain value of the current CW signal at different attenuation values includes:

[0031] Traverse all gears through a digital step attenuator, and obtain the corresponding sampled power through a spectrum analyzer, denoted as the test power; subtract the test power from the preset digital power to obtain the power gain value.

[0032] Optionally, the obtaining of the power compensation values using different bandwidths at different frequency points within the frequency range for the current CW signal includes:

[0033] Adjusting the frequency points of the CW signal in sequence within the frequency range at a preset gradient through a radio frequency chip, obtaining the corresponding sampled power through a spectrum analyzer, and generating a scanned power through unit conversion;

[0034] Calculating the power of all subcarriers at each frequency point within the frequency range based on the scanned power :

[0035]

[0036] In the formula, is the power of the nth subcarrier at frequency point m, W is the power unit, is the frequency of the nth subcarrier, is the upper edge frequency and the lower edge frequency of the frequency band where the nth subcarrier is located, is the corresponding scanned power;

[0037] Calculating the broadband signal power of the frequency point based on the power of all subcarriers of the frequency point :

[0038]

[0039] In the formula, is the broadband signal power of frequency point m, dBm is the power unit, and N is the total number of subcarriers within the bandwidth;

[0040] Subtracting the rated digital power from the broadband signal power of the frequency point to obtain the power compensation value of the frequency point.

[0041] In a third aspect, the present invention provides an electronic device, including a processor and a storage medium;

[0042] The storage medium is used to store instructions;

[0043] The processor is used to operate according to the instructions to execute the steps of the above method.

[0044] In a fourth aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps of the above method are implemented.

[0045] In a fifth aspect, the present invention provides a computer program product, including a computer program / instructions, and when the computer program / instructions are executed by a processor, the steps of the above method are implemented.

[0046] Compared with the prior art, the beneficial effects achieved by the present invention:

[0047] A method and device for calibrating the radio frequency power of a broadband signal based on a CW signal provided by the present invention. The present invention uses a CW signal for calibration, which is simple to implement and has high stability, and accurate power data can be obtained. By sweeping the CW signal, the entire useful bandwidth can be covered to ensure full detection of the radio frequency performance of the device. The present invention can calculate the gains of different frequencies and different bandwidths, meet different frequency and bandwidth requirements, and is applicable to the calibration of a variety of different radio frequency devices. Description of the Drawings

[0048] Figure 1 It is a schematic flowchart of the method for calibrating the radio frequency power of a broadband signal based on a CW signal provided by an embodiment of the present invention. Detailed Embodiments

[0049] The present invention will be further described below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and should not be used to limit the protection scope of the present invention.

[0050] Embodiment 1:

[0051] As Figure 1 shown, an embodiment of the present invention provides a method for calibrating the radio frequency power of a broadband signal based on a CW signal, including the following steps:

[0052] Step S1: Obtain the frequency range of the radio frequency communication device to be calibrated.

[0053] Usually, first obtain the operating frequency band of the radio frequency communication device to be calibrated, and determine the frequency range according to the operating frequency band. For example, the frequency range of the 5G network in the 2.6 GHz frequency band is 2515~2675 MHz.

[0054] Step S2: Generate a CW signal and adjust it to a preset frequency point and a preset digital power within the frequency range, and obtain the power gain values of the current CW signal at different attenuation values.

[0055] The preset frequency point can be selected from any of the common frequency points of the radio frequency communication device to be calibrated.

[0056] The preset digital power can be selected as the maximum digital power of the radio frequency communication device to be calibrated.

[0057] In other alternative embodiments, the preset frequency point and the preset digital power can be flexibly set according to requirements.

[0058] The specific execution process of step S2 includes:

[0059] Step S2.1: Send a CW signal through the FPGA;

[0060] Step S2.2: Adjust the CW signal to a preset frequency point within the frequency range through a radio frequency chip;

[0061] Step S2.3: Adjust the digital power of the CW signal to a preset digital power through an FPGA;

[0062] Step S2.4: Traverse all gears through a digital step attenuator, and obtain the corresponding sampled power through a spectrum analyzer, denoted as the test power;

[0063] Step S2.5: Subtract the preset digital power from the test power to obtain the power gain value.

[0064] As shown in Table 1, it is the power gain values obtained for the 5G network in the 2.6 GHz band at the frequency point of 2575 MHz for gears 0 - 63.

[0065] Table 1: Power gain table for the 2575 MHz frequency point and gears 0 - 63

[0066]

[0067] Step S3: Generate a CW signal and adjust it to the rated digital power, keep the attenuation value unchanged, and obtain the power compensation values of the current CW signal at different frequency points within the frequency range using different bandwidths.

[0068] The specific execution process of Step S3 includes:

[0069] Step S3.1: Send a CW signal through an FPGA and adjust the digital power of the CW signal to the rated digital power;

[0070] Step S3.2: Set the digital step attenuator to a preset gear;

[0071] Step S3.3: Adjust the frequency point of the CW signal sequentially within the frequency range at a preset gradient through a radio frequency chip, obtain the corresponding sampled power through a spectrum analyzer, and perform unit conversion to generate the scan power;

[0072] The power unit of the power is dBm and needs to be converted to the power unit W:

[0073]

[0074] Step S3.4: Calculate the power of all sub - carriers at each frequency point within the frequency range through the scan power :

[0075]

[0076] Where is the power of the nth sub - carrier at the frequency point m, W is the power unit, is the frequency of the nth subcarrier, are the upper and lower edge frequencies of the frequency band where the nth subcarrier is located, is the corresponding scanning power;

[0077] Step S3.5: Calculate the wideband signal power of the frequency point according to the powers of all subcarriers of the frequency point :

[0078]

[0079] In the formula, is the wideband signal power of frequency point m, dBm is the power unit, and N is the total number of subcarriers within the bandwidth;

[0080] Step S3.6: Subtract the rated digital power from the wideband signal power of the frequency point to obtain the power compensation value of the frequency point.

[0081] Step S4: Add the power gain values under different attenuation values and the power compensation values of different bandwidths used at different frequency points to obtain the calibrated wideband signal RF power.

[0082] Taking a 100MHz wideband signal with a 30KHz subcarrier spacing transmitted by a 2.6G (2515~2675MHz) 5G NR 100W base station as an example, there are 3276 subcarriers in the effective bandwidth of its signal, and the occupied bandwidth is very wide. The power gain value is obtained through steps S2.1 - S2.5.

[0083] After adjusting the CW signal to the rated digital power of 50dBm, then sweeping the frequency at an interval of 1MHz, it is necessary to test the power values of 161 frequency points, denoted as P1~P161 (unit: dBm), and then convert them to the unit of W.

[0084] Within a relatively narrow frequency band, the attenuation of the RF device is linear. According to the algorithm calculated linearly, the powers of all intermediate subcarriers are calculated using the power values of adjacent frequency points in the CW sweep table. For example, the power of the first subcarrier, that is, the subcarrier at 2515.875MHz:

[0085] P (W) SCS.1 =(2515.875 - 2515)*(P2 - P1) / (2516 - 2515)+P1

[0086] Finally, the powers of all subcarriers of the 100MHz bandwidth wideband signal at different frequency points to be calibrated are calculated using these 161 frequency points;

[0087] According to the powers of all subcarriers of the frequency point, the power of the 100MHz bandwidth signal with a 30KHz subcarrier spacing at this frequency point :

[0088]

[0089] In the formula, is the broadband signal power at frequency point 2565, and dBm is the power unit;

[0090] Subtract the rated digital power of 50 dBm from the broadband signal power of the frequency point to obtain the power compensation value of the frequency point. For example, the broadband signal power values are 49.4711, 49.4385, and 49.8023 respectively. Subtracting 50 dBm from each of them, the frequency compensation data can be obtained as -0.5298, -0.5615, and -0.1977.

[0091] If the obtained power gain value at the 2595 MHz frequency point is 49.96 dB, then the gain of the broadband signal with a 100 MHz bandwidth and a 30 KHz subcarrier spacing at the 2595 MHz frequency point is (49.96 - 0.5615) dB, that is, 49.3985 dB.

[0092] According to the above algorithm, the broadband signal powers of different center frequencies, different bandwidths, and different subcarrier spacings can be calculated. Writing the data into different frequency compensation tables can complete all the required frequency compensation tables for bandwidth signals.

[0093] The embodiment of the present invention attempts to calibrate the broadband signal by means of CW signal frequency sweeping. Without increasing the hardware cost and R & D investment of the device, the simplest resources can be used to complete the power calibration of the communication device, ensuring that the power accuracy meets different communication requirements.

[0094] The time-domain signal can be converted into multiple subcarrier signals through fast Fourier transform. Therefore, the power of the time-domain signal at a certain moment is also the superposition of the powers of all subcarriers at that moment. If the power of each subcarrier can be measured, the total power of the broadband signal can be calculated. Since the attenuation of the corresponding RF link for each subcarrier is different, the average power of the subcarriers at different frequencies needs to be superimposed to calculate the average power of the final broadband signal. Taking a modulation signal with a subcarrier interval of 30 KHz and a bandwidth of 100 MHz as an example, the signal consists of 273 * 12, that is, 3276 subcarriers. If the power of each subcarrier is the same, the power of the broadband signal is equal to Pscs (subcarrier power) + log10(273 * 12). However, this is only an ideal state. In reality, the performance of the filter and the RF transmitter will affect the power of the subcarriers. We use a CW signal to sweep the frequency at an integer multiple of the subcarrier interval, obtain the power of the CW signal at different frequencies, and linearly calculate the power of all 3276 subcarriers based on the power of the swept CW signal. Then, by accumulating the calculated values, we can obtain the power of the broadband signal with a 100M subcarrier interval of 30 KHz, and further calculate the power of the 100M broadband signal at different center frequencies. The calculated values are recorded as frequency compensation data in the calibration table for software power control to call. From the above further optimization, the CW sweep interval can also not be an integer multiple of the subcarrier interval. As long as the sweep interval is less than the minimum bandwidth and the integrated power of the required frequency band, that is, the bandwidth, can be calculated, the frequency compensation calibration will be more flexible.

[0095] Embodiment 2:

[0096] An embodiment of the present invention provides a device for calibrating the RF power of a broadband signal based on a CW signal, including:

[0097] A frequency confirmation module, configured to obtain the frequency range of the RF communication device to be calibrated;

[0098] A gain calculation module, configured to generate a CW signal and adjust it to a preset frequency point and a preset digital power within the frequency range, and obtain the power gain value of the current CW signal at different attenuation values;

[0099] A compensation calculation module, configured to generate a CW signal and adjust it to a rated digital power, keep the attenuation value unchanged, and obtain the power compensation value of the current CW signal at different frequency points within the frequency range using different bandwidths;

[0100] A calibration calculation module, configured to add the power gain values at different attenuation values and the power compensation values at different frequency points using different bandwidths to obtain the calibrated RF power of the broadband signal.

[0101] Specifically, obtaining the power gain value of the current CW signal at different attenuation values includes:

[0102] Traverse all gears through a digital step attenuator, and obtain the corresponding sampled power through a spectrum analyzer, denoted as the test power; subtract the preset digital power from the test power to obtain the power gain value.

[0103] Specifically, obtaining the power compensation values for different bandwidths at different frequency points within the frequency range for the current CW signal includes:

[0104] Adjust the frequency points of the CW signal in sequence within the frequency range according to a preset gradient through a radio frequency chip, obtain the corresponding sampled power through a spectrum analyzer, and perform unit conversion to generate the scanned power;

[0105] Calculate the power of all subcarriers at each frequency point within the frequency range based on the scanned power :

[0106]

[0107] In the formula, is the power of the nth subcarrier at frequency point m, W is the power unit, is the frequency of the nth subcarrier, are the upper edge frequency and the lower edge frequency of the frequency band where the nth subcarrier is located, is the corresponding scanned power;

[0108] Calculate the broadband signal power of the frequency point based on the power of all subcarriers of the frequency point :

[0109]

[0110] In the formula, is the broadband signal power of frequency point m, dBm is the power unit, and N is the total number of subcarriers within the bandwidth;

[0111] Subtract the rated digital power from the broadband signal power of the frequency point to obtain the power compensation value of the frequency point.

[0112] Example 3:

[0113] Based on the method for calibrating the radio frequency power of a broadband signal based on a CW signal provided in Example 1, an embodiment of the present invention provides an electronic device, including a processor and a storage medium;

[0114] The storage medium is used to store instructions;

[0115] The processor is used to operate according to the instructions to execute the steps of the above method.

[0116] Example 4:

[0117] Based on the method for calibrating the radio frequency power of a broadband signal using a CW signal provided in Embodiment 1, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps of the above method are implemented.

[0118] Embodiment 5:

[0119] Based on the method for calibrating the radio frequency power of a broadband signal using a CW signal provided in Embodiment 1, an embodiment of the present invention provides a computer program product, including a computer program / instructions, and when the computer program / instructions are executed by a processor, the steps of the above method are implemented.

[0120] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0121] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of flows and / or blocks in the flowchart and / or block diagram can also be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the specified functions in one Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0122] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including instruction means, and the instruction means implement the specified functions in one Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0123] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide means for implementing the specified functions in one Figure 1One process or multiple processes and / or boxes Figure 1 Steps of functions specified in one box or multiple boxes.

[0124] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A method for calibrating the radio frequency power of a broadband signal based on a CW signal, characterized in that: include: Obtain the frequency range of the radio frequency communication device to be calibrated; Generate a CW signal and adjust it to a preset frequency point and a preset digital power within a frequency range, and obtain the power gain value of the current CW signal under different attenuation values; Generate a CW signal and adjust it to the rated digital power, keep the attenuation value unchanged, and obtain the power compensation value of the current CW signal using different bandwidths at different frequency points within the frequency range; The power gain values ​​under the different attenuation values ​​and the power compensation values ​​using different bandwidths at the different frequency points are added together to obtain the calibrated broadband signal radio frequency power.

2. The method for calibrating the radio frequency power of a broadband signal based on a CW signal according to claim 1, characterized in that: Generating a CW signal and adjusting it to a preset frequency point and a preset digital power within a frequency range includes: A CW signal is sent through FPGA, and the CW signal is adjusted to a preset frequency within a frequency range through a radio frequency chip; and the digital power of the CW signal is adjusted to a preset digital power through FPGA.

3. The method for calibrating the radio frequency power of a broadband signal based on a CW signal according to claim 1, characterized in that: The obtaining of the power gain value of the current CW signal at different attenuation values ​​comprises: All gears are traversed through the digital step attenuator, and the corresponding sampling power is obtained through the spectrum analyzer and recorded as the test power; the power gain value is obtained by subtracting the preset digital power from the test power.

4. The method for calibrating the radio frequency power of a broadband signal based on a CW signal according to claim 1, characterized in that: The obtaining of power compensation values ​​of the current CW signal using different bandwidths at different frequency points within the frequency range includes: The frequency points of the CW signal are adjusted sequentially within a frequency range according to a preset gradient through a radio frequency chip, corresponding sampling power is obtained through a spectrum analyzer, and unit conversion is performed to generate scanning power; The power of all subcarriers at each frequency point within the frequency range is calculated by the scanning power : ； In the formula, is the power of the nth subcarrier at frequency m, W is the power unit, is the frequency of the nth subcarrier, are the upper and lower edge frequencies of the frequency band where the nth subcarrier is located, for Corresponding scanning power; Calculate the broadband signal power at a frequency point based on the power of all subcarriers at that frequency point : ； In the formula, is the broadband signal power at frequency m, dBm is the power unit, and N is the total number of subcarriers in the bandwidth; Subtract the rated digital power from the broadband signal power at the frequency point to obtain the power compensation value at the frequency point.

5. A device for calibrating the radio frequency power of a broadband signal based on a CW signal, characterized in that: include: A frequency confirmation module is configured to obtain a frequency range of the radio frequency communication device to be calibrated; A gain calculation module is configured to generate a CW signal and adjust it to a preset frequency point and a preset digital power within a frequency range, and obtain a power gain value of the current CW signal under different attenuation values; The compensation calculation module is configured to generate a CW signal and adjust it to a rated digital power, keep the attenuation value unchanged, and obtain power compensation values ​​of the current CW signal using different bandwidths at different frequency points within the frequency range; The calibration calculation module is configured to add the power gain values ​​under the different attenuation values ​​and the power compensation values ​​using different bandwidths at the different frequency points to obtain the calibrated broadband signal radio frequency power.

6. The device for calibrating the radio frequency power of a broadband signal based on a CW signal according to claim 5, characterized in that: The obtaining of the power gain value of the current CW signal at different attenuation values ​​comprises: All gears are traversed through the digital step attenuator, and the corresponding sampling power is obtained through the spectrum analyzer and recorded as the test power; the power gain value is obtained by subtracting the preset digital power from the test power.

7. The device for calibrating the radio frequency power of a broadband signal based on a CW signal according to claim 1, characterized in that: The obtaining of power compensation values ​​of the current CW signal using different bandwidths at different frequency points within the frequency range includes: The frequency points of the CW signal are adjusted sequentially within a frequency range according to a preset gradient through a radio frequency chip, corresponding sampling power is obtained through a spectrum analyzer, and unit conversion is performed to generate scanning power; The power of all subcarriers at each frequency point within the frequency range is calculated by the scanning power : ； In the formula, is the power of the nth subcarrier at frequency m, W is the power unit, is the frequency of the nth subcarrier, are the upper and lower edge frequencies of the frequency band where the nth subcarrier is located, for Corresponding scanning power; Calculate the broadband signal power at a frequency point based on the power of all subcarriers at that frequency point : ； In the formula, is the broadband signal power at frequency m, dBm is the power unit, and N is the total number of subcarriers in the bandwidth; Subtract the rated digital power from the broadband signal power at the frequency point to obtain the power compensation value at the frequency point.

8. An electronic device, characterized in that: including processor and storage medium; The storage medium is used to store instructions; The processor is configured to operate according to the instructions to execute the steps of the method according to any one of claims 1 to 4.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method according to any one of claims 1 to 4 are implemented.

10. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instructions are executed by a processor, the steps of the method according to any one of claims 1 to 4 are implemented.

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