CN109560823B - Gain fluctuation correction method, device and storage medium for digital communication equipment - Google Patents
Gain fluctuation correction method, device and storage medium for digital communication equipment Download PDFInfo
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- CN109560823B CN109560823B CN201811435650.3A CN201811435650A CN109560823B CN 109560823 B CN109560823 B CN 109560823B CN 201811435650 A CN201811435650 A CN 201811435650A CN 109560823 B CN109560823 B CN 109560823B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
- H04B17/13—Monitoring; Testing of transmitters for calibration of power amplifiers, e.g. gain or non-linearity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/0416—Circuits with power amplifiers having gain or transmission power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0491—Circuits with frequency synthesizers, frequency converters or modulators
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Abstract
The application discloses a gain fluctuation correction method and device of digital communication equipment and a storage medium, relates to the field of digital communication, and aims to solve the problem that the stability of output gain of the equipment is difficult to guarantee due to the difference of manufacturing processes of the digital communication equipment, construction conditions in an application scene of the digital communication equipment and the quality of the digital communication equipment. According to the method, when the absolute value of the difference value between an actual gain value and an expected gain value is detected to be larger than a preset decibel value, a frequency point value and an environment temperature value of an output signal of the digital communication equipment are obtained, a gain correction value is determined according to the frequency point value and the environment temperature value of the output signal, and the actual gain value is corrected according to the gain correction value. Therefore, the gain of the digital communication equipment can be more accurate, and meanwhile, the gain of the digital communication equipment can be ensured to be stably output.
Description
Technical Field
The present invention relates to the field of digital communications, and in particular, to a method and an apparatus for correcting gain fluctuation of a digital communication device, and a storage medium.
Background
With the rapid development of the communication network field, such as network scale, network container, network coverage area, coverage environment, coverage frequency band, etc., digital communication equipment is required to be able to keep transmission power stable when applied to network construction and being capable of adapting to different application scenes. In the prior art, the gain fluctuation of the digital communication equipment is large due to the difference of the manufacturing process of the digital communication equipment, the construction condition in the application scene of the digital communication equipment and the quality of the digital communication equipment, and the stability of the output gain of the equipment is difficult to ensure.
Disclosure of Invention
The embodiment of the application provides a gain fluctuation correction method and device of digital communication equipment and a storage medium. When the absolute value of the difference value between the actual gain value and the expected gain value is greater than the preset decibel value, acquiring a frequency point value and an environmental temperature value of an output signal of the digital communication equipment; and determining a gain correction value according to the frequency point value of the output signal and the environmental temperature value, and correcting the actual gain value according to the gain correction value. Therefore, the gain of the digital communication equipment can be more accurate, and meanwhile, the gain of the digital communication equipment can be ensured to be stably output.
In a first aspect, an embodiment of the present application provides a gain fluctuation correction method for a digital communication device, where the method includes:
acquiring an actual gain value of an output signal and comparing the actual gain value with a preset expected gain value;
if the absolute value of the difference between the actual gain value and the expected gain value is greater than a preset decibel, acquiring an environmental temperature value and a frequency point value of an output signal;
determining a frequency point correction value corresponding to the frequency point value of the output signal according to the corresponding relation between the preset frequency point value and the frequency point correction value; and the number of the first and second groups,
determining a temperature correction value corresponding to the obtained ambient temperature value according to a corresponding relation between a preset ambient temperature value and the temperature correction value;
determining a gain correction value according to the difference absolute value, a frequency point correction value corresponding to the frequency point value of the output signal and a temperature correction value corresponding to the obtained environmental temperature value;
and correcting the actual gain value according to the gain correction value.
In a second aspect, an embodiment of the present application provides a gain fluctuation correction apparatus for a digital communication device, including:
the first acquisition module is used for acquiring an actual gain value of the output signal and comparing the actual gain value with a preset expected gain value;
the second obtaining module is used for obtaining an environment temperature value and a frequency point value of an output signal if the absolute value of the difference value between the actual gain value and the expected gain value is greater than a preset decibel;
the first determining module is used for determining a frequency point correction value corresponding to the frequency point value of the output signal according to the corresponding relation between the preset frequency point value and the frequency point correction value; and the number of the first and second groups,
the second determining module is used for determining a temperature correction value corresponding to the acquired environmental temperature value according to the corresponding relation between the preset environmental temperature value and the temperature correction value;
a third determining module, configured to determine a gain correction value according to the difference absolute value, a frequency point correction value corresponding to a frequency point value of the output signal, and a temperature correction value corresponding to the obtained ambient temperature value;
and the correction module is used for correcting the actual gain value according to the gain correction value.
In a third aspect, another embodiment of the present application further provides a computing device comprising at least one processor; and;
a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the gain fluctuation correction method of the digital communication device provided by the embodiment of the application.
In a fourth aspect, another embodiment of the present application further provides a computer storage medium, where the computer storage medium stores computer-executable instructions for causing a computer to execute a gain fluctuation correction method of a digital communication device in an embodiment of the present application.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
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The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic flowchart of a gain fluctuation correction method of a digital communication device according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating storage of frequency point fluctuation gain correction parameters in an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating a temperature fluctuation gain correction parameter storage according to an embodiment of the present application;
fig. 4 is a schematic flow chart illustrating a phase of a gain fluctuation correction method of a digital communication device according to an embodiment of the present application;
fig. 5 is a schematic diagram of a process of determining a frequency point correction value in an embodiment of the present application;
FIG. 6 is a schematic flow chart illustrating the process of determining temperature correction values according to an embodiment of the present application;
fig. 7 is a schematic diagram of a gain fluctuation correction structure of a digital communication device in an embodiment of the present application;
fig. 8 is a schematic structural diagram of a computing device according to an embodiment of the present application.
Detailed Description
In order to correct the gain of the digital communication device and ensure the stability of the output gain of the device, the embodiments of the present application provide a method and an apparatus for correcting the gain fluctuation of the digital communication device, and a storage medium. In order to better understand the technical solution provided by the embodiments of the present application, the following brief description is made on the basic principle of the solution:
before the digital communication equipment is delivered from a factory for application, by collecting the temperature, the wide frequency band of a transmission band and other information of the digital communication equipment, carrying out statistical analysis, extracting respective gain correction values aiming at different temperatures and different frequency points of the equipment, and storing to obtain a fluctuation correction table. During subsequent gain compensation, accurate gain correction values can be obtained by combining temperature and frequency points in a table look-up mode, and further gain compensation is achieved. Because the fluctuation correction table is extracted aiming at different equipment, the method is equivalent to the method for extracting the optimal gain fluctuation correction parameter by combining the self process of the equipment and the performance difference of devices. In the practical application process of the digital communication equipment in network coverage, after the gain of the equipment is determined by a user, the gain fluctuation correction parameter is automatically analyzed by referring to the optimal gain fluctuation correction parameter, and the gain of the digital communication equipment is compensated by the optimal parameter.
The gain fluctuation correction method of the digital communication device is further described by the specific embodiment. Fig. 1 is a schematic flow chart of a gain fluctuation correction method of a digital communication device, which includes the following steps:
step 101: the actual gain value of the output signal is obtained and compared with a preset desired gain value.
Step 102: and if the absolute value of the difference value between the actual gain value and the expected gain value is greater than a preset decibel value, acquiring an environmental temperature value and a frequency point value of an output signal.
Step 103: and determining the frequency point correction value corresponding to the frequency point value of the output signal according to the corresponding relation between the preset frequency point value and the frequency point correction value.
Step 104: and determining a temperature correction value corresponding to the acquired environmental temperature value according to the corresponding relation between the preset environmental temperature value and the temperature correction value.
The execution order of step 103 and step 104 is not limited.
Step 105: and determining a gain correction value according to the difference absolute value, the frequency point correction value corresponding to the frequency point value of the output signal and the temperature correction value corresponding to the acquired environmental temperature value.
Step 106: and correcting the actual gain value according to the gain correction value.
Therefore, the final gain correction value is determined according to the frequency point value and the environmental temperature value of the output signal of the current digital communication equipment, so that the gain of the digital communication equipment is more accurate, and meanwhile, the gain of the digital communication equipment can be ensured to be stably output.
The method comprises an early preparation stage, wherein the early preparation stage is used for refining various tables for determining frequency point correction values and temperature correction values. And a gain correction stage after various tables are obtained.
1) Early preparation phase
In the production and manufacturing process of the digital communication equipment, gain fluctuates and losses are caused by differences of manufacturing process, device performance, transmission frequency band, transmission time delay and the like, equipment temperature change and equipment material aging. And the gain fluctuation of each digital communication device is different due to different device processes and device performances. Therefore, the gain correction method applied to the a device is not applied to other devices.
In the application, before the digital communication equipment leaves a factory, the respective corresponding correction values of the temperature and the frequency point are collected for each digital communication equipment and stored in a gain fluctuation correction table. Specifically, for the fluctuation gain change caused by the transmission frequency band, the signal source is controlled to output the frequency point signals, and the actual test is performed by means of an Automatic Test System (ATS) to collect the frequency point correction values corresponding to the frequency points, and the frequency point correction values are stored in a frequency band fluctuation correction table (the use of the table will be described later). Aiming at the fluctuation gain change caused by the temperature fluctuation change, the digital communication equipment is placed in a high-low temperature modulation box, and the environmental temperature value is set to ensure that the digital communication equipment is under the set temperature condition; then, by means of the ATS automation tool, the signal source output signal of the digital communication device is controlled to actually measure the actual gain to the corresponding temperature correction value, and the temperature correction value corresponding to each ambient temperature value is collected and stored in a temperature fluctuation correction table (the use of the table will be described later).
In one embodiment, in order to conveniently and quickly find the frequency point correction value corresponding to each frequency point, the collected frequency point correction values are stored in a form of block and table division. As shown in fig. 2, the frequency point value (freq) in a segment of frequency band and the frequency point correction value (freqCorrect) corresponding to the frequency point value are stored in an independent frequency band fluctuation correction table (freqCorrect table), and the table stores the corresponding frequency point correction value by stepping the frequency band 1M. Then, the frequency point region id (freq zoneoid) and the frequency band fluctuation correction table name (freq corrrecttablename) are stored by a frequency band fluctuation correction mapping table (freqcorrrectmaptable). The frequency point region ID represents a frequency band interval and is used for searching a frequency band where the frequency point value of the output signal is located.
Similarly, in order to conveniently and quickly find the temperature correction value corresponding to each temperature, the collected temperature correction value is stored in a form of block and table division. As shown in fig. 3, the ambient temperature value (temperature) in a temperature segment and the temperature correction value (tempCorrect) corresponding to the ambient temperature value are stored in an independent temperature segment fluctuation correction table (tempCorrect table), and the table stores the corresponding correction value by using the temperature of 0.5 degrees celsius as a step. The temperature segment id (tempzoneid) and the temperature fluctuation correction table name (tempcorecttablename) are then stored by a temperature segment fluctuation correction mapping table (tempcorectmaptable). And the temperature section ID represents a temperature interval and is used for searching a temperature section where the environmental temperature value is located.
The preparation stage of the gain fluctuation correction method of the digital communication apparatus is explained above, and how to perform the gain correction is further explained below. As shown in fig. 4, the gain correction stage can be divided into three parts, which are: determining a frequency point correction value and a temperature correction value, and analyzing a gain fluctuation correction parameter and a gain fluctuation correction.
1. Determining frequency point correction values and temperature correction values
When performing the gain fluctuation correction, it is first necessary to determine whether the correction operation is necessary, and it may be specifically implemented to compare the obtained actual gain value with the expected gain value. And if the absolute value of the difference value between the actual gain value and the expected gain value is more than 1 decibel, determining the frequency point correction value and the temperature correction value. The determining of the frequency point correction value may be specifically implemented as steps a1-a 2:
step A1: and determining the frequency band corresponding to the frequency point value of the output signal according to the corresponding relation between the preset frequency point value and the frequency band.
Step A2: and searching a frequency point correction value corresponding to the frequency point value of the output signal in the frequency point correction value set corresponding to the frequency band.
Therefore, the frequency band corresponding to the frequency point value is obtained according to the frequency point value, and the frequency point correction value corresponding to the frequency point value is found in the frequency band, so that the searching efficiency can be improved, and the convenience for expanding the frequency point precision correction value in the future can be improved.
A method of determining the bin correction values will be described by taking as an example the case of determining the bin correction values using the table generated in the early preparation stage shown in fig. 2. In the application, each frequency point is represented by binary number with preset digits, wherein a frequency band Identifier (ID) is formed by splicing a lowest frequency point in the frequency band and a highest frequency point in the frequency band. Then, looking up a table to determine the frequency point correction value, as shown in fig. 5, includes the following steps:
step 501: and matching the frequency point value of the output signal with the frequency band interval represented by the frequency point region ID to obtain the frequency point region ID corresponding to the frequency point value of the output signal.
Step 502: and determining the frequency band correction table name corresponding to the frequency point region ID through the frequency band fluctuation correction mapping table.
Step 503: and searching a frequency point correction value corresponding to the frequency point value of the output signal in the frequency band correction table corresponding to the determined frequency band correction table name.
Likewise, determining the temperature correction value may be embodied as steps B1-B2:
step B1: and determining the temperature section corresponding to the acquired environmental temperature value according to the corresponding relation between the preset environmental temperature value and the temperature section.
Step B2: and searching the temperature correction value corresponding to the obtained ambient temperature value in the temperature correction value set corresponding to the temperature section.
Therefore, the temperature section corresponding to the environment temperature value is obtained according to the environment temperature value, and the temperature correction value corresponding to the environment temperature value is found in the temperature section, so that the searching efficiency can be improved, and the convenience of expanding the frequency point precision correction value in the future can be improved.
A method of determining the temperature correction value will be described by taking as an example the case of determining the temperature correction value using the table generated in the early preparation stage shown in fig. 3. In the application, binary numbers with preset digits are adopted to represent all temperatures, wherein the temperature section Identification (ID) is formed by splicing the lowest temperature in the temperature section and the highest temperature in the temperature section. Then, a look-up table determines the temperature correction value as shown in FIG. 6.
Step 601: and matching the environment temperature value with the temperature section interval represented by the temperature section ID to obtain the temperature section ID corresponding to the environment temperature value.
Step 602: and determining the name of the temperature correction table corresponding to the temperature section ID through the temperature section fluctuation correction mapping table.
Step 603: and searching for a temperature correction value corresponding to the ambient temperature value in the temperature section correction table corresponding to the determined temperature section correction table name.
2. Stage for analyzing gain fluctuation correction parameter
After obtaining the frequency point correction value corresponding to the current frequency point value and the temperature correction value corresponding to the environmental temperature value, calculating the frequency point correction value, the temperature correction value and the absolute value of the difference between the actual gain value and the expected gain value to obtain the gain correction value, which can be specifically implemented as the steps C1-C2:
step C1: and determining the sum of the frequency point correction value corresponding to the frequency point value of the output signal and the temperature correction value corresponding to the acquired environmental temperature value.
Step C2: and determining the absolute value of the difference value to subtract the sum value to obtain a gain correction value.
Thus, the gain correction value can be obtained by calculation.
However, the gain fluctuates and is lost due to factors such as construction environmental conditions and implementation effects; if errors occur in acquisition due to frequency point or temperature change of the obtained parameter data in the gain fluctuation correction parameter refining stage, the precision of fluctuation correction cannot be guaranteed, and the gain fluctuation caused by external field environment change cannot be adapted; at this time, the parameters are analyzed in a stepwise convergence manner to find a correction value which timely meets the gain requirement, which can be specifically implemented as: if the corrected gain value is different from the desired gain value, the gain correction value is calculated again.
Thus, by calculating the gain correction value again, the accuracy of the fluctuation correction can be ensured.
3. Gain fluctuation correction phase
And correcting the actual gain value by the gain correction value obtained by calculation through a gain correction device, so that the gain of the digital communication equipment can be ensured to be stably output.
Based on the same inventive concept, the embodiment of the application also provides a gain fluctuation correction device of the digital communication equipment. As shown in fig. 7, the apparatus includes:
a first obtaining module 701, configured to obtain an actual gain value of an output signal and compare the actual gain value with a preset expected gain value;
a second obtaining module 702, configured to obtain an ambient temperature value and a frequency point value of an output signal if an absolute value of a difference between the actual gain value and the expected gain value is greater than a preset decibel;
a first determining module 703, configured to determine a frequency point correction value corresponding to a frequency point value of an output signal according to a correspondence between a preset frequency point value and the frequency point correction value; and the number of the first and second groups,
a second determining module 704, configured to determine a temperature correction value corresponding to the obtained ambient temperature value according to a corresponding relationship between a preset ambient temperature value and the temperature correction value;
a third determining module 705, configured to determine a gain correction value according to the difference absolute value, the frequency point correction value corresponding to the frequency point value of the output signal, and the temperature correction value corresponding to the obtained ambient temperature value;
and a correcting module 706, configured to correct the actual gain value according to the gain correction value.
Further, the first determining module 703 includes:
the first determining unit is used for determining a frequency band corresponding to the frequency point value of the output signal according to the corresponding relation between the preset frequency point value and the frequency band;
and the first acquisition unit is used for searching a frequency point correction value corresponding to the frequency point value of the output signal in the frequency point correction value set corresponding to the frequency band.
Further, the second determining module 704 includes:
the second determining unit is used for determining the temperature section corresponding to the acquired environmental temperature value according to the corresponding relation between the preset environmental temperature value and the temperature section;
and the second acquisition unit is used for searching the temperature correction value corresponding to the acquired environmental temperature value in the temperature correction value set corresponding to the temperature section.
Further, the third determining module 705 includes:
a sum value determining unit, configured to determine a sum value of a frequency point correction value corresponding to the frequency point value of the output signal and a temperature correction value corresponding to the obtained ambient temperature value;
and the gain correction value determining unit is used for determining that the sum is subtracted from the absolute difference value to obtain a gain correction value.
Further, after the correcting module 706 corrects the actual gain value according to the gain correction value, the apparatus further includes:
and the recalculation module is used for recalculating the gain correction value if the corrected gain value is different from the expected gain value.
Having described the method and apparatus for gain fluctuation correction in a digital communication device according to an exemplary embodiment of the present application, a computing apparatus according to another exemplary embodiment of the present application is described next.
As will be appreciated by one skilled in the art, aspects of the present application may be embodied as a system, method or program product. Accordingly, various aspects of the present application may be embodied in the form of: an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.) or an embodiment combining hardware and software aspects that may all generally be referred to herein as a "circuit," module "or" system.
In some possible implementations, a computing device may include at least one processor, and at least one memory, according to embodiments of the application. Wherein the memory stores program code which, when executed by the processor, causes the processor to execute step 101 and step 106 of the gain fluctuation correction method of the digital communication device according to various exemplary embodiments of the present application described above in the present specification.
The computing device 80 according to this embodiment of the present application is described below with reference to fig. 8. The computing device 80 shown in fig. 8 is only an example and should not bring any limitations to the functionality or scope of use of the embodiments of the present application. The computing device may be, for example, a cell phone, a tablet computer, or the like.
As shown in fig. 8, computing device 80 is embodied in the form of a general purpose computing device. Components of computing device 80 may include, but are not limited to: the at least one processor 81, the at least one memory 82, and a bus 83 connecting the various system components including the memory 82 and the processor 81.
The memory 82 may include readable media in the form of volatile memory, such as Random Access Memory (RAM)821 and/or cache memory 822, and may further include Read Only Memory (ROM) 823.
In some possible embodiments, the aspects of the gain fluctuation correction method for a digital communication device provided in the present application may also be implemented in the form of a program product, which includes program code for causing a computer device to execute the steps in the method for gain fluctuation correction for a digital communication device according to various exemplary embodiments of the present application described above in this specification when the program product runs on the computer device, and execute the steps 101-106 as shown in fig. 1.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The gain fluctuation correction method of the digital communication apparatus according to the embodiment of the present application may employ a portable compact disc read only memory (CD-ROM) and include program codes, and may be executed on a computing device. However, the program product of the present application is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user computing device, partly on the user equipment, as a stand-alone software package, partly on the user computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., through the internet using an internet service provider).
It should be noted that although several units or sub-units of the apparatus are mentioned in the above detailed description, such division is merely exemplary and not mandatory. Indeed, the features and functions of two or more units described above may be embodied in one unit, according to embodiments of the application. Conversely, the features and functions of one unit described above may be further divided into embodiments by a plurality of units.
Moreover, although the operations of the methods of the present application are depicted in the drawings in a sequential order, this does not require or imply that these operations must be performed in this order, or that all of the illustrated operations must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a manner that causes the instructions stored in the computer-readable memory to produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (9)
1. A method for gain fluctuation correction in a digital communication device, the method comprising:
acquiring an actual gain value of an output signal and comparing the actual gain value with a preset expected gain value;
if the absolute value of the difference between the actual gain value and the expected gain value is greater than a preset decibel, acquiring an environmental temperature value and a frequency point value of an output signal;
determining a frequency point correction value corresponding to the frequency point value of the output signal according to the corresponding relation between the preset frequency point value and the frequency point correction value; and the number of the first and second groups,
determining a temperature correction value corresponding to the obtained ambient temperature value according to a corresponding relation between a preset ambient temperature value and the temperature correction value;
determining a gain correction value according to the difference absolute value, the frequency point correction value corresponding to the frequency point value of the output signal and the temperature correction value corresponding to the acquired environmental temperature value, and specifically comprises the following steps:
determining the sum of the frequency point correction value corresponding to the frequency point value of the output signal and the temperature correction value corresponding to the acquired environmental temperature value;
determining the absolute value of the difference value to subtract the sum value to obtain a gain correction value;
and correcting the actual gain value according to the gain correction value.
2. The method according to claim 1, wherein the determining the frequency point correction value corresponding to the frequency point value of the output signal according to the correspondence between the preset frequency point value and the frequency point correction value specifically comprises:
determining a frequency band corresponding to the frequency point value of the output signal according to the corresponding relation between the preset frequency point value and the frequency band;
and searching a frequency point correction value corresponding to the frequency point value of the output signal in the frequency point correction value set corresponding to the frequency band.
3. The method according to claim 1, wherein the determining the temperature correction value corresponding to the obtained ambient temperature value according to the correspondence between the preset ambient temperature value and the temperature correction value specifically comprises:
determining a temperature section corresponding to the acquired environmental temperature value according to a corresponding relation between a preset environmental temperature value and the temperature section;
and searching the temperature correction value corresponding to the obtained ambient temperature value in the temperature correction value set corresponding to the temperature section.
4. The method of claim 1, wherein said modifying said actual gain value based on said gain modification value further comprises:
if the corrected gain value is different from the desired gain value, the gain correction value is calculated again.
5. An apparatus for gain fluctuation correction in a digital communication device, the apparatus comprising:
the first acquisition module is used for acquiring an actual gain value of the output signal and comparing the actual gain value with a preset expected gain value;
the second obtaining module is used for obtaining an environment temperature value and a frequency point value of an output signal if the absolute value of the difference value between the actual gain value and the expected gain value is greater than a preset decibel;
the first determining module is used for determining a frequency point correction value corresponding to the frequency point value of the output signal according to the corresponding relation between the preset frequency point value and the frequency point correction value; and the number of the first and second groups,
the second determining module is used for determining a temperature correction value corresponding to the acquired environmental temperature value according to the corresponding relation between the preset environmental temperature value and the temperature correction value;
a third determining module, configured to determine a gain correction value according to the difference absolute value, a frequency point correction value corresponding to a frequency point value of the output signal, and a temperature correction value corresponding to the obtained ambient temperature value; the method comprises the following steps: a sum value determining unit, configured to determine a sum value of a frequency point correction value corresponding to the frequency point value of the output signal and a temperature correction value corresponding to the obtained ambient temperature value;
a gain correction value determining unit for determining that the sum is subtracted from the absolute difference value to obtain a gain correction value;
and the correction module is used for correcting the actual gain value according to the gain correction value.
6. The apparatus of claim 5, wherein the first determining module comprises:
the first determining unit is used for determining a frequency band corresponding to the frequency point value of the output signal according to the corresponding relation between the preset frequency point value and the frequency band;
and the first acquisition unit is used for searching a frequency point correction value corresponding to the frequency point value of the output signal in the frequency point correction value set corresponding to the frequency band.
7. The apparatus of claim 5, wherein the second determining module comprises:
the second determining unit is used for determining the temperature section corresponding to the acquired environmental temperature value according to the corresponding relation between the preset environmental temperature value and the temperature section;
and the second acquisition unit is used for searching the temperature correction value corresponding to the acquired environmental temperature value in the temperature correction value set corresponding to the temperature section.
8. A computer-readable medium having computer-executable instructions stored thereon, the computer-executable instructions configured to be executed by a processor to perform the method of any of claims 1-4.
9. A computing device, comprising:
at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-4.
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