Flight compact range-based antenna far field test method, device and system

Abstract

The invention relates to the technical field of antenna testing, in particular to an antenna far-field testing method, device and system based on a flight compact range, and the method comprises the steps: obtaining a plurality of antenna emphasized testing types of an antenna; analyzing a parameter similarity relationship between different antenna test parameters in the same antenna emphasis test category to obtain antenna test item similarity; according to the similarity of the antenna test items, analyzing the contact condition of the emphasis test items among different antenna test parameters in the same antenna emphasis test category to obtain an emphasis test core degree; according to the emphasis test core degree, item relevance between different antenna emphasis test categories is compared, and antenna item emphasis linkage is obtained; and antenna far-field testing is carried out according to the antenna project emphasized linkage. According to the invention, the number of restrictions during actual quality testing is reduced, and the accuracy of the antenna testing result is improved.

Description

Technical Field

[0001] The present invention relates to the field of antenna testing technology, and in particular to a far-field testing method, equipment and system for an antenna based on a flight compact range. Background Art

[0002] Antennas are an indispensable part of wireless communication systems. They are responsible for converting electrical signals into electromagnetic waves and electromagnetic waves into electrical signals. Their performance directly affects the transmission efficiency and quality of wireless signals. In a variety of application scenarios such as mobile communications, satellite communications, radio and television, and radar, the design, manufacturing, and quality inspection of antennas are particularly important. High-quality antennas can achieve optimal gain, directivity, and radiation efficiency, ensuring stable transmission and reception of signals. In addition, poor antenna performance may cause signal loss or interference, affecting the reliability and stability of the entire system. Therefore, quality inspection is a key link to ensure that the antenna complies with relevant standards and regulations. Antenna far-field testing is an important method for evaluating antenna performance. In the existing technology, for far-field testing of antennas, a flight compact field is often used to simulate traditional far-field test conditions in a smaller space to evaluate antenna performance.

[0003] In the far-field test of the antenna based on the flight compact range, in order to judge the performance of the antenna, the antenna quality is often tested solely based on the physical parameters of the antenna, such as the design frequency of the antenna, the antenna size and other parameters that can be set by the antenna itself. However, since the physical properties of the antenna itself change relatively simply, this method will have more limitations in the actual quality test, resulting in inaccurate test results. Summary of the invention

[0004] The present invention provides a far-field antenna testing method, equipment and system based on a flight compact field to solve the existing problem: the traditional antenna detection method usually relies solely on the physical parameters of the antenna, such as the antenna's design frequency, antenna size and other parameters that can be set by the antenna itself to test the antenna quality; however, since this method has a relatively simple change in the physical properties of the antenna itself, there are many limitations in the actual quality test, resulting in inaccurate test results.

[0005] The antenna far-field testing method and system based on the flight compact range of the present invention adopts the following technical solutions: The following steps are involved: Acquire a plurality of antenna focus test categories of the antenna; the antenna focus test category includes a plurality of antenna test parameters; Analyze the parameter similarity between different antenna test parameters in the same antenna emphasis test category to obtain the antenna test item similarity between different antenna test parameters; analyze the connection between the emphasis test items between different antenna test parameters in the same antenna emphasis test category based on the antenna test item similarity to obtain the emphasis test coreness of different antenna test parameters; compare the item correlation between different antenna emphasis test categories based on the emphasis test coreness to obtain the antenna item emphasis linkage of different antenna test parameters; According to the linkage of antenna project emphasis, the antenna test parameters in different antenna focus test categories are adaptively merged to obtain several test focus clusters, and the antenna far-field test is performed.

[0006] Preferably, the method for obtaining the similarity of the antenna test items is: For any antenna emphasis test category, the changes between different antenna test parameters are compared within the antenna emphasis test category to obtain the similarity of antenna test items between different antenna test parameters.

[0007] Preferably, after calculating the similarity of the antenna test items, the method further includes: Normalize the similarity of antenna test items.

[0008] Preferably, the method for acquiring the test core degree is: Any antenna test parameter in any antenna emphasis test category is used as the target antenna test parameter to obtain several reference antenna test parameters of the target antenna test parameter; based on the relationship between the emphasis of the target antenna test parameter and other reference antenna test parameters, the emphasis test coreness of the target antenna test parameter is obtained.

[0009] Preferably, the method for acquiring the reference antenna test parameters is: All antenna test parameters except the target antenna test parameters are used as control antenna test parameters.

[0010] Preferably, the antenna project focuses on obtaining the linkage property by: The overall content of the focus test core degree in all antenna focus test categories is integrated to obtain the antenna project core independence of the antenna; the difference in antenna project core independence between different antenna focus test categories is calculated to obtain the antenna project focus linkage of different antenna test parameters.

[0011] Preferably, the method for obtaining the core independence of the antenna project is: The average of the focus test coreness of all antenna test parameters in all antenna focus test categories is taken as the core independence of the antenna project.

[0012] Preferably, after calculating the antenna project focus linkage, the method further includes: Normalize the antenna project with an emphasis on linkage.

[0013] The antenna far-field test system based on a flight compact range includes a memory, a processor, and a computer program stored in the memory and running on the processor. The processor executes the computer program to implement the steps of the above method.

[0014] Antenna far-field test equipment based on a flight compact range, the equipment comprising: An antenna focus test category acquisition module, a data command analysis module and an antenna test module; wherein the antenna focus test category acquisition module is used to obtain several antenna focus test categories of the antenna, the data command analysis module implements the steps of the antenna far-field test method based on the flight compression range by calling a computer program to obtain the antenna test core category, and the antenna test module performs antenna far-field testing according to the test focus clustering clusters.

[0015] The technical scheme of the present invention has the following beneficial effects: analyzing the parameter similarity between different antenna test parameters in the same antenna emphasis test category to obtain the antenna test item similarity between different antenna test parameters; better reflecting the fluctuation law between the antenna test items contained in the corresponding antenna emphasis test category; analyzing the connection between the emphasis test items between different antenna test parameters in the same antenna emphasis test category according to the antenna test item similarity to obtain the emphasis test coreness of different antenna test parameters; making the degree of attention paid to the corresponding antenna test parameters in the same antenna emphasis test category more obvious; comparing the item correlation between different antenna emphasis test categories according to the emphasis test coreness to obtain the antenna item emphasis linkage of different antenna test parameters; making the influence of the antenna test items contained in the corresponding antenna emphasis test category on the antenna test results clear; the present invention adaptively classifies the antenna test parameters by jointly analyzing the multi-dimensional correlation between the antenna test items between the physical parameters and the test operation parameters, so that the antenna test equipment can select appropriate parameters for testing, thereby reducing the number of restrictions existing in the actual quality test on the basis of ensuring a certain test efficiency, and improving the accuracy of the antenna test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 The present invention is a flowchart of the steps of the far-field antenna testing method based on the flight compact range. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the antenna far-field test method, device and system based on the flight compact field proposed by the present invention, its specific implementation method, structure, features and effects are described in detail as follows in combination with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "another embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments may be combined in any suitable form.

[0019] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0020] The specific scheme of the antenna far-field testing method, device and system based on the flight compact range provided by the present invention is described in detail below with reference to the accompanying drawings.

[0021] See also Figure 1 , which shows a flowchart of a method for far-field testing of an antenna based on a flight compact range provided by an embodiment of the present invention, comprising the following steps: Step S001: obtaining a plurality of antenna focus test categories of an antenna; the antenna focus test category includes a plurality of antenna test parameters.

[0022] It should be noted that in the far-field test of the antenna based on the flight compact field, in order to judge the performance of the antenna, the antenna quality is often tested solely relying on the physical parameters of the antenna, such as the design frequency of the antenna, the antenna size and other parameters that can be set by the antenna itself; however, since the physical properties of the antenna itself change relatively simply, this method will have more limitations in the actual quality test, resulting in inaccurate test results.

[0023] In a specific implementation of the embodiment of the present invention, the method for obtaining the antenna focus test category is: obtaining from the antenna database Physical parameters of the antenna of each physical parameter type and The antenna operation parameters of the test operation parameter types are used, the antenna physical parameters and the antenna operation parameters are used as antenna parameters, and the normalized value of each antenna parameter is used as the antenna test parameter. The normalization process is performed by taking the function as an example, wherein the normalization function can be determined according to the specific implementation situation.

[0024] It is particularly noted that this embodiment uses three physical parameter types, namely, design frequency, antenna size, and design gain, and four test operation parameter types, namely, actual gain, standing wave ratio, lobe width, and radiation efficiency. , This example is described as an example, and this embodiment is not specifically limited. , It may depend on the specific implementation situation.

[0025] Furthermore, each antenna test parameter is assigned a preset observation weight. ; Different antenna test parameters The absolute value of the difference is used as the distance metric, and the number of clusters is preset. , according to the distance metric and the number of clusters , obtain several clusters; and use each cluster as an antenna focus test category. Each antenna focus test category includes multiple antenna test parameters, and each antenna test parameter corresponds to an antenna test item. In addition, this embodiment uses This example is described as an example, and this embodiment is not specifically limited. It may depend on the specific implementation situation.

[0026] In particular, the preset observation weights assigned to each antenna test parameter are , which may be determined according to the specific implementation situation, and is not specifically limited in this embodiment; the process of obtaining cluster clusters according to the distance metric and the number of clusters is a well-known content of the k-means clustering algorithm, and will not be repeated in this embodiment.

[0027] So far, several antenna focus test categories of the antenna are obtained through the above method.

[0028] Step S002: Analyze the parameter similarity between different antenna test parameters within the same antenna emphasis test category to obtain the antenna test item similarity between different antenna test parameters; based on the antenna test item similarity, analyze the connection between the emphasis test items between different antenna test parameters within the same antenna emphasis test category to obtain the emphasis test coreness of different antenna test parameters; based on the emphasis test coreness, compare the item correlation between different antenna emphasis test categories to obtain the antenna item emphasis linkage of different antenna test parameters.

[0029] It should be noted that the traditional antenna detection method usually relies solely on the physical parameters of the antenna, which is limited by the relatively fixed physical properties of the antenna itself, which will reduce the accuracy of the corresponding antenna test results. In the actual environment, the antenna itself also has a type of operation test parameters of the computational experiment type, for example: standing wave ratio, radiation efficiency and other parameters are all this type of operation test parameters; compared with physical parameters, this type of operation test parameters has a more flexible range of numerical fluctuations and has more evaluation dimensions that can be associated with the actual use quality of the antenna, but it will greatly increase the test efficiency of the antenna; considering the actual test efficiency and the accuracy of the test results, after analyzing the data change relationship between the physical parameters and the operation test parameters, the correlation between the antenna test items represented by different antenna test parameters can be further analyzed, and the antenna test items that are mainly focused on in the current situation can be adaptively divided into categories, thereby improving the accuracy of the test results.

[0030] Preferably, in some implementations of the embodiments of the present invention, the method for obtaining the similarity of antenna test items is: for any antenna focus test category, the variation between different antenna test parameters within the antenna focus test category is compared to obtain the similarity of antenna test items between different antenna test parameters. The specific process is as follows: An inversely proportional normalized value of the absolute value of the difference between any two antenna test parameters in the antenna focus test category is used as the antenna test item similarity of any two antenna test parameters.

[0031] It is particularly noted that this embodiment adopts Model to present inverse proportional relationship and normalization, As the input of the model, the implementer can choose the inverse proportional function and the normalization function according to the actual situation.

[0032] It should be noted that the greater the similarity of antenna test items, the closer the values ​​of antenna test items represented by different antenna test parameters in the same antenna focus test category are, which reflects that the fluctuation patterns between the antenna test items contained in the corresponding antenna focus test category are closer.

[0033] Preferably, in some implementations of the embodiments of the present invention, the method for obtaining the focus test core degree is: taking any antenna test parameter in any antenna focus test category as the target antenna test parameter, obtaining several control antenna test parameters of the target antenna test parameter; and obtaining the focus test core degrees of different antenna test parameters based on the relationship between the focus situations of the target antenna test parameter and other control antenna test parameters. The specific process is as follows: Preferably, in some implementations of the embodiments of the present invention, the method for acquiring the reference antenna test parameters is: taking all antenna test parameters except the target antenna test parameters as reference antenna test parameters.

[0034] Furthermore, a similarity test item for antenna is preset , focus on testing the antennas in the same category with test items similar to those in the same category. The control antenna test parameters are used as reference test parameters; the absolute value of the similarity difference between antenna test items of different reference test parameters is used as the distance metric, and the number of clusters is preset. , according to the distance metric and the number of clusters 1. Obtain several clusters, and use each cluster as a focus cluster for the target antenna test parameters. This example is described as an example, and this embodiment is not specifically limited. It may depend on the specific implementation situation.

[0035] Furthermore, as an example, the focus test core degree can be calculated by the following formula: In the formula, Indicates the test focus of the target antenna test parameters; Represents the number of all focus clusters of the target antenna test parameters; Indicates that except The number of remaining focus clusters other than the focus clusters; Indicates that except Focus on clustering The first one focuses on clustering, and the The covariance value between clusters is emphasized; Indicates The variance of the similarity of antenna test items within the cluster is focused on; Indicates that except Focus on clustering The variance of the similarity of antenna test items within the cluster is focused on clustering.

[0036] It should be noted that, if the emphasis test core degree is greater, it means that the corresponding antenna test parameter is more closely related to other antenna test parameters within the same antenna emphasis test category, which reflects that the corresponding antenna test parameter is more concerned within the same antenna emphasis test category.

[0037] Preferably, in some implementations of the embodiments of the present invention, the method for obtaining the antenna project emphasis linkage is: comprehensively analyzing the overall content of the emphasis test core degree in all antenna emphasis test categories to obtain the antenna project core independence of the antenna; calculating the difference in antenna project core independence between different antenna emphasis test categories to obtain the antenna project emphasis linkage of different antenna test parameters. The specific process is as follows: Preferably, in some implementations of the embodiments of the invention, the method for obtaining the core independence of the antenna project is: taking the average of the focus test core degrees of all antenna test parameters in all antenna focus test categories as the core independence of the antenna project.

[0038] Furthermore, as an example, the antenna project emphasis linkage can be calculated by the following formula: In the formula, Indicates Antennas focus on testing the The antenna project of antenna test parameters focuses on linkage; Indicates The antennas in the test category are focused on except The number of remaining antenna test parameters other than the antenna test parameters; Indicates Antennas focus on testing the The antenna project of antenna test parameters focuses on linkage; Indicates the core independence of the antenna project; Indicates Antennas focus on testing the Antenna test parameters; Indicates The antennas in the test category are focused on except Antenna test parameters Antenna test parameters; Indicates taking the absolute value.

[0039] It should be noted that if the antenna project emphasis linkage is greater, it means that the test focus of the antenna test items contained in the corresponding antenna emphasis test category and other antenna emphasis test categories is more correlated, reflecting that the antenna test items contained in the corresponding antenna emphasis test category have a more important impact on the antenna test results.

[0040] So far, the antenna items with different antenna test parameters are obtained through the above method with emphasis on linkage.

[0041] Step S003: According to the linkage of antenna project emphasis, antenna test parameters in different antenna emphasis test categories are adaptively merged to obtain a number of test emphasis clusters, and antenna far-field testing is performed.

[0042] Preferably, in a specific implementation of an embodiment of the present invention, the method for obtaining the test focus clustering cluster is: taking the average of all focus observation weights in each antenna focus test category as the category core focus of each antenna focus test category; taking any antenna test parameter in any antenna focus test category as an example, taking the product of the category core focus of the antenna focus test category and the antenna item focus linkage of the antenna test parameter as the test focus priority of the antenna test parameter.

[0043] Furthermore, the absolute value of the difference in test emphasis priority between different antenna test parameters is used as the distance metric, and the absolute value of the difference in similarity of antenna test items between different reference test parameters is used as the distance metric, and the number of final clusters is preset. , according to the distance metric and the number of clusters , obtain several clusters, and use each cluster as a test focus cluster; perform antenna far-field testing according to the test focus cluster. This example is described as an example, and this embodiment is not specifically limited. It may depend on the specific implementation situation.

[0044] It should be noted that the process of performing antenna far-field testing on antenna test data is a well-known technology and will not be described in detail in this embodiment.

[0045] At this point, this embodiment is completed.

[0046] Another embodiment of the present invention provides an antenna far-field testing system based on a flight compact range, the system comprising a memory, a processor, and a computer program stored in the memory and running on the processor, and when the processor executes the computer program, the above method steps S001-S003 are implemented.

[0047] Another embodiment of the present invention provides an antenna far-field testing device based on a flight compact field, the device comprising an antenna focus test category acquisition module, a data command analysis module and an antenna testing module; when the device calls a computer program through the three modules, the above method steps S001-S003 are implemented.

[0048] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. The antenna far-field test method based on the flight compact range is characterized by: The method comprises the following steps: Acquire a plurality of antenna focus test categories of the antenna; the antenna focus test category includes a plurality of antenna test parameters; Analyze the parameter similarity between different antenna test parameters in the same antenna emphasis test category to obtain the antenna test item similarity between different antenna test parameters; analyze the connection between the emphasis test items between different antenna test parameters in the same antenna emphasis test category based on the antenna test item similarity to obtain the emphasis test coreness of different antenna test parameters; compare the item correlation between different antenna emphasis test categories based on the emphasis test coreness to obtain the antenna item emphasis linkage of different antenna test parameters; According to the linkage of antenna project emphasis, the antenna test parameters in different antenna focus test categories are adaptively merged to obtain several test focus clusters, and the antenna far-field test is performed.

2. The antenna far-field test method based on a flight compact range according to claim 1 is characterized in that: The method for obtaining the similarity of the antenna test items is as follows: For any antenna emphasis test category, the changes between different antenna test parameters are compared within the antenna emphasis test category to obtain the similarity of antenna test items between different antenna test parameters.

3. The antenna far-field testing method based on a flight compact range according to claim 1 is characterized in that: After calculating the similarity of antenna test items, it also includes: Normalize the similarity of antenna test items.

4. The antenna far-field testing method based on a flight compact range according to claim 1 is characterized in that: The method for obtaining the test core degree is as follows: Taking any antenna test parameter in any antenna focus test category as a target antenna test parameter, obtaining several comparison antenna test parameters of the target antenna test parameter; According to the relationship between the emphasis of the target antenna test parameters and other control antenna test parameters, the emphasis test coreness of the target antenna test parameters is obtained.

5. The antenna far-field testing method based on a flight compact range according to claim 4 is characterized in that: The method for obtaining the control antenna test parameters is: All antenna test parameters except the target antenna test parameters are used as control antenna test parameters.

6. The antenna far-field testing method based on a flight compact range according to claim 1 is characterized in that: The antenna project focuses on the method of obtaining linkage: The overall content of the focus test core degree in all antenna focus test categories is integrated to obtain the antenna project core independence of the antenna; the difference in antenna project core independence between different antenna focus test categories is calculated to obtain the antenna project focus linkage of different antenna test parameters.

7. The antenna far-field testing method based on a flight compact range according to claim 6 is characterized in that: The method for obtaining the core independence of the antenna project is: The average of the focus test coreness of all antenna test parameters in all antenna focus test categories is taken as the core independence of the antenna project.

8. The antenna far-field testing method based on a flight compact range according to claim 1 is characterized in that: After calculating the antenna project focusing on linkage, it also includes: Normalize the antenna project with an emphasis on linkage.

9. A far-field antenna test system based on a flight compact range, comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that: When the processor executes the computer program, the steps of the antenna far-field testing method based on a flight compact range as described in any one of claims 1-8 are implemented.

10. Antenna far-field test equipment based on flight compact range, characterized in that: The device comprises: An antenna focus test category acquisition module, a data command analysis module and an antenna test module; wherein the antenna focus test category acquisition module is used to obtain several antenna focus test categories of the antenna, the data command analysis module implements the steps of the antenna far-field test method based on the flight compression range as described in any one of claims 1-8 by calling a computer program to obtain the antenna test core category, and the antenna test module performs antenna far-field testing according to the test focus clustering clusters.

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