CN117031151A - Frequency conversion assembly input P-1 index detection method, device, storage medium and system - Google Patents
Frequency conversion assembly input P-1 index detection method, device, storage medium and system Download PDFInfo
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Abstract
The application discloses a method, a device and a storage medium system for detecting an input P-1 index of a frequency conversion assembly. The method comprises the following steps: the control signal source outputs a radio frequency signal with a first preset power to the tested variable frequency component, so that the tested variable frequency component works in a linear region, and a first gain of an output signal of the tested variable frequency component is obtained; the control signal source outputs a radio frequency signal with a second preset power to the tested variable frequency component, and a second gain of the output signal of the tested variable frequency component is obtained; the second preset power is a minimum value P-1 specified by technical requirements; when the difference value between the first gain and the second gain is smaller than or equal to a preset value, determining that the tested variable frequency component P-1 test value meets the technical index regulation requirement. The application greatly shortens the test time of the index of the frequency conversion assembly P-1, reduces the number of instruments and effectively improves the efficiency of automatic test.
Description
Technical Field
The application relates to the technical field of radio frequency testing, in particular to a method, a device and a storage medium system for detecting an input P-1 index of a frequency conversion assembly.
Background
Because of the many test indexes of the frequency conversion assembly, how to improve the test efficiency of the frequency conversion assembly has been a problem that needs to be solved by test engineers. The traditional testing method is that two persons are matched with each other by a manual counting method, one person adjusts instrument parameters, and the other person reads instrument values to complete the index testing of the variable frequency assembly. However, with the increasing number of products, this manual testing method is inefficient and severely limits throughput. Therefore, the automatic number-taking software is generated, the automatic number-taking software can communicate with the instrument through the upper computer, the instrument is controlled by sending an instruction, and the numerical value of the instrument is read through the instruction, so that the automatic number-taking function is realized. The current P-1 (the input power at the 1dB gain compression point) index test time in the automatic number taking process is long, and in order to further shorten the test time, the P-1 test method needs to be optimized.
Disclosure of Invention
The application aims to solve the technical problems existing in the prior art and provides a method, a device and a storage medium system for detecting an input P-1 index of a frequency conversion component.
In order to solve the technical problems, the application provides a method for detecting an input P-1 index of a frequency conversion assembly, which comprises the following steps: the control signal source outputs a radio frequency signal with a first preset power to the tested variable frequency component, so that the tested variable frequency component works in a linear region, and a first gain of an output signal of the tested variable frequency component is obtained; the control signal source outputs a radio frequency signal with a second preset power to the tested variable frequency component, and a second gain of the output signal of the tested variable frequency component is obtained; the second preset power is a minimum value P-1 specified by technical requirements; when the difference value between the first gain and the second gain is smaller than or equal to a preset value, determining that the tested variable frequency component P-1 test value meets the technical index regulation requirement.
In order to solve the technical problem, the application also provides a frequency conversion assembly input P-1 index detection device, which is characterized by comprising:
the first gain acquisition module is used for controlling the signal source to output a radio frequency signal with first preset power to the tested frequency conversion assembly, so that the tested frequency conversion assembly works in a linear region, and the first gain of the output signal of the tested frequency conversion assembly is acquired;
the second gain acquisition module is used for controlling the signal source to output a radio frequency signal with second preset power to the tested frequency conversion assembly and acquiring a second gain of the output signal of the tested frequency conversion assembly; the second preset power is a minimum value P-1 specified by technical requirements;
and the analysis and calculation module is used for determining that the tested variable frequency component P-1 test value meets the technical index regulation requirement when the difference value of the first gain and the second gain is smaller than or equal to the preset value.
In order to solve the technical problem, the application also provides a frequency conversion assembly input P-1 index detection device, which comprises: the method is characterized in that the method for detecting the input P-1 index of the frequency conversion component is realized when the processor executes the program.
In order to solve the technical problem, the application also provides a computer readable storage medium, which comprises instructions that, when executed on a computer, cause the computer to execute the frequency conversion assembly input P-1 index detection method provided by the technical scheme.
In order to solve the technical problem, the application also provides a frequency conversion assembly input P-1 index detection system, which is characterized by comprising: the device comprises a direct-current stabilized power supply, a signal source, a control device and a spectrum analyzer;
the direct-current stabilized power supply is connected with the tested variable frequency component and is used for providing a power signal for the tested variable frequency component;
the signal source is connected with the control device and the tested variable frequency component and is used for outputting a radio frequency signal with first preset power to the tested variable frequency component according to the control of the control device so that the tested variable frequency component works in a linear region; the system is also used for outputting a radio frequency signal with second preset power to the tested variable frequency component, wherein the second preset power is a minimum value P-1 specified by technical requirements;
the frequency spectrum analyzer is used for respectively reading the frequency spectrum amplitude values corresponding to the output signals of the tested frequency conversion assembly under the radio frequency signals of the first preset power and the second preset power so as to obtain a first gain and a second gain;
the control device is used for executing the frequency conversion assembly input P-1 index detection method provided by the technical scheme.
The beneficial effects of the application are as follows: the application calculates the two frequency conversion gains by changing the output power of the signal source twice, and determines the specified value meeting the technical requirement by judging the difference value of the two frequency conversion gains. The application does not need to accurately test the P-1 value of the frequency conversion assembly at different frequency points, and only judges whether the difference value of the frequency conversion gains of two times meets the set condition. The application has the advantages of less scanning points, greatly shortened test time, and greatly shortened test time of P-1 project when finishing index judgment; the application can not only greatly shorten the test time of the index of the frequency conversion assembly P-1, but also reduce the number of instruments and effectively improve the automatic test efficiency.
Additional aspects of the application and advantages thereof will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
FIG. 1 is a flowchart of a method for detecting an input P-1 index of a variable frequency module according to an embodiment of the present application;
FIG. 2 is a flowchart of a method for detecting an input P-1 index of a variable frequency module according to another embodiment of the present application;
FIG. 3 is a block diagram of a system for detecting an input P-1 index of a frequency conversion assembly according to an embodiment of the present application.
Detailed Description
Other advantages and effects of the present disclosure will become readily apparent to those skilled in the art from the following disclosure, which describes embodiments of the present disclosure by way of specific examples. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present disclosure. The disclosure may be embodied or practiced in other different specific embodiments, and details within the subject specification may be modified or changed from various points of view and applications without departing from the spirit of the disclosure. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.
It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present disclosure, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. In addition, such apparatus may be implemented and/or such methods practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
As shown in FIG. 1, the method for detecting the input P-1 index of the frequency conversion assembly according to the embodiment of the application comprises the following steps:
s1, controlling a signal source to output a radio frequency signal with a first preset power to a tested variable frequency component, enabling the tested variable frequency component to work in a linear region, and obtaining a first gain of the output signal of the tested variable frequency component;
s2, controlling a signal source to output a radio frequency signal with a second preset power to the tested variable frequency component, and obtaining a second gain of the output signal of the tested variable frequency component; the second preset power is a minimum value P-1 specified by technical requirements;
and S3, when the difference value between the first gain and the second gain is smaller than or equal to a preset value, determining that the tested value of the tested variable frequency component P-1 meets the technical index regulation requirement.
Currently, there are various methods for measuring the frequency conversion component P-1, and a vector network analyzer, a power meter and a spectrum analyzer can be used for measuring the frequency conversion P-1 value. When the vector network analyzer is used for testing the P-1 of the frequency conversion assembly, the power scanning function of the vector network analyzer can be used for realizing the measurement of the P-1. However, not every vector network analyzer has this function, and assembly parts are required, which is expensive. When the power meter and the spectrum analyzer are used for measuring the P-1 value of the frequency conversion assembly, the power value displayed by the instrument is read, and then the P-1 value is obtained through calculation. When a power meter or a frequency spectrograph is used for measurement, the traditional method is to perform power scanning in a mode of equidistant increment method and dichotomy method, so that the P-1 value of the frequency conversion assembly is obtained. Although the method can accurately measure the P-1 value of the frequency conversion assembly, the test time is long, and the test efficiency of the frequency conversion assembly is affected.
The traditional method for testing the frequency conversion assembly P-1 is to perform power scanning by an equidistant increasing method, the method mainly changes the radio frequency input power of the frequency conversion assembly at equal intervals, a gain value corresponding to each input power is calculated, and finally the P-1 value of the frequency conversion assembly is determined. Although the method can accurately test the P-1 value of the variable frequency component at different frequency points, the method adopts an equidistant power scanning method, and when the power scanning is carried out according to 1dB steps, the specific P-1 value can be measured by scanning at least 16 points, so that the test time is long and the test efficiency is low.
According to the embodiment of the application, the output power of the signal source is changed twice, the twice frequency conversion gain is calculated, and the difference value of the twice frequency conversion gain is judged to meet the set condition (for example, the difference value is smaller than 1), so that the specification value meeting the technical requirement is considered. The application does not need to accurately test the P-1 value of the frequency conversion assembly at different frequency points, and only judges whether the difference value of the frequency conversion gains of two times meets the set condition. The application has the advantages of less scanning points, greatly shortened test time, and greatly shortened test time of P-1 project when finishing index judgment; the application can not only greatly shorten the test time of the index of the frequency conversion assembly P-1, but also reduce the number of instruments and effectively improve the automatic test efficiency.
Compared with the traditional testing method, the method provided by the embodiment of the application has the advantages that the scanning point number is changed from 16 points to 2 points, the testing time is shortened to at least 12.5 percent, and the testing efficiency of the frequency conversion assembly is greatly improved.
Optionally, the tested variable frequency component is connected with a spectrum analyzer; reading a first frequency spectrum amplitude of an output signal of a tested frequency conversion assembly under a first preset power radio frequency signal through a frequency spectrum analyzer, and calculating according to the first frequency spectrum amplitude to obtain a first gain; and reading a second frequency spectrum amplitude of an output signal of the tested frequency conversion assembly under a second preset power radio frequency signal through a frequency spectrum analyzer, and calculating according to the second frequency spectrum amplitude to obtain a second gain.
In the prior art, the vector network analyzer is used for measuring the variable frequency component P-1, the measuring time is short, but the installation of optional components is needed, and the cost is high; and the instrument is also required to be replaced when other indexes are measured, so that the testing smoothness is affected, and the testing efficiency is low.
The power meter is used for measuring the frequency conversion assembly P-1, the accuracy of measuring the P-1 value is high, and the actual P-1 value of the frequency conversion assembly can be accurately measured. However, after the power meter is used for measuring the P-1, the instrument is also required to be replaced to test other indexes, so that the overall test efficiency is affected.
The embodiment of the application uses the spectrum analyzer as a key instrument for detecting the frequency conversion assembly P-1, and has the advantages that other indexes (such as test items of harmonic suppression degree, spurious suppression degree, local oscillator leakage and the like of the frequency conversion assembly) of the frequency conversion assembly can be considered when the P-1 index test is completed, so that the types of instruments used by the whole test system can be reduced, and the switching of the instruments in the module test process can be avoided. The test cost is saved, the test time is shortened, and the test efficiency is improved.
As shown in FIG. 2, another embodiment of the present application provides a method for detecting an input P-1 index of a frequency conversion assembly, which includes: setting the output power Pin1 of the signal source 2 for the first time, wherein the value of Pin1 is smaller than the minimum value P-1 specified by technical requirements by 15dB; reading the amplitude of the spectrum analyzer, and calculating the gain G1 of the frequency conversion assembly; setting the output power Pin2 of the signal source 2 for the second time, wherein the value of the Pin2 is equal to the minimum P-1 value specified by technical requirements; reading the amplitude of the spectrum analyzer, and calculating the gain G2 of the frequency conversion assembly; judging the size relation between G1 and G2, and determining that the test value of the frequency conversion assembly P-1 meets the technical index specified value when G1-G2 is less than or equal to 1; and G1-G2 is not less than or equal to 1, positioning the fault cause and finishing the repair of the tested variable frequency assembly.
According to the embodiment of the application, the output power of the signal source is changed twice, the frequency conversion gain is calculated twice, and the difference value of the frequency conversion gain is judged to meet the set condition (for example, the difference value is smaller than 1), namely, the condition that the specification value meets the technical requirement is determined. The embodiment of the application also marks the P-1 value which does not meet the requirement, so as to locate the fault reason and complete the repair of the tested variable frequency assembly.
The embodiment of the application also provides a frequency conversion assembly input P-1 index detection device, which comprises: the system comprises a first gain acquisition module, a second gain acquisition module and an analysis calculation module. The first gain acquisition module is used for controlling the signal source to output a radio frequency signal with first preset power to the tested variable frequency component, so that the tested variable frequency component works in a linear region, and the first gain of the output signal of the tested variable frequency component is acquired; the second gain acquisition module is used for controlling the signal source to output a radio frequency signal with second preset power to the tested variable frequency component and acquiring a second gain of the output signal of the tested variable frequency component; the second preset power is a minimum value P-1 specified by technical requirements; the analysis and calculation module is used for determining that the tested variable frequency component P-1 test value meets the technical index regulation requirement when the difference value of the first gain and the second gain is smaller than or equal to a preset value.
The embodiment of the application also provides a frequency conversion assembly input P-1 index detection device, which comprises: the frequency conversion component input P-1 index detection method comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the frequency conversion component input P-1 index detection method provided by the embodiment when executing the program.
The embodiment of the application also provides a computer readable storage medium, which comprises instructions, when the instructions run on a computer, the instructions cause the computer to execute the frequency conversion assembly input P-1 index detection method provided by the embodiment.
As shown in fig. 3, the embodiment of the present application further provides a frequency conversion component input P-1 index detection system, including: the direct current stabilized power supply 1, a signal source (the number of the signal sources can be 1 or a plurality of the signal sources, and the specific situation can be determined according to the specific structure of the frequency conversion assembly), a control device (not shown in the figure) and a spectrum analyzer 4. The signal sources may include a radio frequency signal source 2 and a local oscillator signal source 3.
The direct current stabilized power supply 1 is connected to a power supply input port of the frequency conversion assembly 5, the signal source 2 is connected to a radio frequency input port of the frequency conversion assembly, the signal source 3 is connected to a local oscillation input port of the frequency conversion assembly 5, and an intermediate frequency output port of the frequency conversion assembly 5 is connected to an input end of the frequency spectrum analyzer 4.
The direct current stabilized power supply 1 provides stable direct current signals for the frequency conversion assembly 5, the number of the direct current stabilized power supplies 1 is not limited, and adjustment can be made according to the power supply requirement of the frequency conversion assembly 5; the radio frequency signal source 2 provides a radio frequency input signal for the frequency conversion assembly 5; the local oscillation signal sources 3 provide local oscillation signals for the frequency conversion assembly 5, the number of the local oscillation signal sources 3 is not limited, and corresponding changes can be made according to the local oscillation demands of the frequency conversion assembly 5. The spectrum analyzer 4 is used for measuring the spectral output characteristics of the frequency conversion assembly 5, including frequency and amplitude.
In the embodiment of the application, a signal source is connected with a control device and a tested variable frequency component 5 and is used for outputting a radio frequency signal with first preset power to the tested variable frequency component according to the control of the control device so that the tested variable frequency component works in a linear region; and the device is also used for outputting a radio frequency signal with second preset power to the tested variable frequency component, wherein the second preset power is a minimum value P-1 specified by technical requirements. The spectrum analyzer 4 is used for respectively reading the spectrum amplitude values corresponding to the output signals of the tested frequency conversion component under the radio frequency signals of the first preset power and the second preset power, so as to obtain a first gain and a second gain; the control device is used for executing the frequency conversion assembly input P-1 index detection method provided by the embodiment.
In the embodiment of the application, the control device realizes the control of the instrument through software and comprises the following steps: controlling the output power and frequency of a signal source; reading spectrometer data; and controlling the direct current stabilized source switch. All instruments are automatically controlled by the control device as soon as the test is started.
According to the embodiment of the application, the test method is optimized, the test of other indexes is finished by using the least instruments and equipment, the rapid measurement of the frequency conversion assembly P-1 is finished, the test efficiency is improved, and the test cost is reduced.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the apparatus and units described above may refer to corresponding procedures in the foregoing method embodiments, which are not described herein again.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiment of the present application.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application is essentially or a part contributing to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, randomAccessMemory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing description of the preferred embodiments of the application is not intended to limit the application to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the application are intended to be included within the scope of the application.
Claims (10)
1. The method for detecting the P-1 index input by the frequency conversion assembly is characterized by comprising the following steps of:
the control signal source outputs a radio frequency signal with a first preset power to the tested variable frequency component, so that the tested variable frequency component works in a linear region, and a first gain of the output signal of the tested variable frequency component is obtained;
the control signal source outputs a radio frequency signal with a second preset power to the tested variable frequency component, and a second gain of the output signal of the tested variable frequency component is obtained; wherein the second preset power is a minimum value P-1 specified by technical requirements;
when the difference value between the first gain and the second gain is smaller than or equal to a preset value, determining that the tested variable frequency component P-1 test value meets the technical index regulation requirement.
2. The method of claim 1, wherein the frequency conversion assembly under test is connected to a spectrum analyzer;
reading a first frequency spectrum amplitude of an output signal of a tested frequency conversion assembly under a first preset power radio frequency signal through a frequency spectrum analyzer, and calculating according to the first frequency spectrum amplitude to obtain the first gain;
and reading a second frequency spectrum amplitude of an output signal of the tested frequency conversion assembly under a second preset power radio frequency signal through a frequency spectrum analyzer, and calculating according to the second frequency spectrum amplitude to obtain the second gain.
3. The method as recited in claim 1, further comprising: and when the difference value between the first gain and the second gain is larger than a preset value, locating a fault reason and finishing repairing of the tested variable frequency assembly.
4. A method according to any one of claims 1 to 3, characterized in that the first preset power is 15dB less than the minimum value P-1 specified by the technical requirements.
5. A method according to any one of claims 1 to 3, wherein the predetermined value is 1.
6. An input P-1 index detection device of a frequency conversion assembly, comprising:
the first gain acquisition module is used for controlling the signal source to output a radio frequency signal with first preset power to the tested frequency conversion assembly, so that the tested frequency conversion assembly works in a linear region, and the first gain of the output signal of the tested frequency conversion assembly is acquired;
the second gain acquisition module is used for controlling the signal source to output a radio frequency signal with second preset power to the tested frequency conversion assembly and acquiring a second gain of the output signal of the tested frequency conversion assembly; wherein the second preset power is a minimum value P-1 specified by technical requirements;
and the analysis and calculation module is used for determining that the tested variable frequency component P-1 test value meets the technical index regulation requirement when the difference value of the first gain and the second gain is smaller than or equal to a preset value.
7. An input P-1 index detection device of a frequency conversion assembly, comprising: comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method for detecting the P-1 index of the frequency conversion assembly input according to any one of claims 1 to 5 when executing the program.
8. A computer readable storage medium comprising instructions which, when run on a computer, cause the computer to perform the frequency conversion assembly input P-1 index detection method of any one of claims 1 to 5.
9. An input P-1 index detection system for a frequency conversion assembly, comprising: the device comprises a direct-current stabilized power supply, a signal source, a control device and a spectrum analyzer;
the direct-current stabilized power supply is connected with the tested variable frequency component and is used for providing a power signal for the tested variable frequency component;
the signal source is connected with the control device and the tested variable frequency component and is used for outputting a radio frequency signal with first preset power to the tested variable frequency component according to the control of the control device so that the tested variable frequency component works in a linear region; the system is also used for outputting a radio frequency signal with second preset power to the tested variable frequency component, wherein the second preset power is a minimum value P-1 specified by technical requirements;
the spectrum analyzer is used for respectively reading the spectrum amplitude corresponding to the output signal of the tested frequency conversion assembly under the radio frequency signals of the first preset power and the second preset power, and further obtaining a first gain and a second gain;
the control device is used for executing the method for detecting the P-1 index input by the frequency conversion assembly according to any one of claims 1 to 5.
10. The system of claim 9, wherein the signal source comprises a radio frequency signal source for providing a radio frequency signal to the frequency conversion assembly under test and a local oscillator signal source for providing a local oscillator signal to the frequency conversion assembly under test.
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| CN202310923625.4A CN117031151A (en) | 2023-07-26 | 2023-07-26 | Frequency conversion assembly input P-1 index detection method, device, storage medium and system |
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| CN202310923625.4A CN117031151A (en) | 2023-07-26 | 2023-07-26 | Frequency conversion assembly input P-1 index detection method, device, storage medium and system |
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