Antenna control system and method based on data analysis
By analyzing the three-dimensional spatial radiation pattern of the phased array antenna, finding the target position or edge point, predicting the control deviation angle, determining the area to be controlled and performing feed phase control, the problem of signal reception interruption of the phased array antenna is solved, and the improvement of accurate signal reception and control effect is achieved.
Patent Information
- Application Number
- CN202411396718.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2044-10-09
AI Technical Summary
In the prior art, phased array antennas cannot accurately control the feeding phase of the radiating elements, resulting in interruption of signal reception and affecting the use effect of the phased array antenna.
By drawing the real-time three-dimensional spatial pattern of the phased array antenna, it is determined whether the feeding phase of the radiating unit needs to be adjusted, and the target position point or edge point is found in the pattern, the control deviation angle is predicted, the area to be controlled is determined, and finally the feeding phase is controlled.
The signal receiving capability and control effect of the phased array antenna are improved, ensuring that the electromagnetic waves emitted by the target object can be accurately received, avoiding affecting other radiation areas, and improving the use effect of the system.
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Figure CN119381762B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of antenna control, and in particular to an antenna control system and method based on data analysis. Background Art
[0002] With the rise of voice call services, video call services, satellite positioning, satellite broadcasting, etc. in wireless communications, the market demand for mobile terminal products is growing. As a component in terminal equipment, the antenna plays an important role in its communication quality. However, traditional antennas have not been able to keep up with the development needs of terminal equipment with more and more functions and smaller and smaller appearances in some aspects. The space available for antennas in terminal equipment will become smaller and smaller. Therefore, characteristics such as wide bandwidth, multi-function, small size, and high efficiency are the development direction of antennas that match modern communications.
[0003] In the prior art, in order to ensure that the phased array antenna can receive electromagnetic waves emitted by the target object, it is necessary to control the feeding phase of the radiating unit in the phased array antenna. However, precise control cannot be achieved during the control process, that is, the control area in the phased array antenna cannot be determined, which affects the phased array antenna's reception of electromagnetic waves emitted by other target objects. In addition, in the prior art, it is impossible to quickly determine the control result of the feeding phase of the radiating unit, resulting in interruption of the signal received by the phased array antenna, which reduces the effectiveness of the phased array antenna. Summary of the Invention
[0004] The object of the present invention is to provide an antenna control system and method based on data analysis to solve the problems raised in the prior art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an antenna control method based on data analysis, the method comprising:
[0006] S10: Draw the real-time three-dimensional spatial pattern of the phased array antenna and determine whether the feeding phase of the radiating elements in the phased array antenna needs to be adjusted based on the target azimuth angle and target elevation angle when the antenna plane of the phased array antenna is aligned with the target object;
[0007] S20: When it is necessary to control the feeding phase of the radiating element in the phased array antenna, a target position point or a target edge point is searched in the real-time three-dimensional spatial pattern, and based on the search result, a control deviation angle of the phased array antenna is predicted;
[0008] S30: Determine an area where a radiation unit to be controlled in the phased array antenna is located, based on the beam width corresponding to each position point of the phased array antenna;
[0009] S40: Analyze the feeding phase control value of the radiating unit to be controlled, and control the feeding phase of the radiating unit to be controlled.
[0010] Furthermore, the specific method of determining whether it is necessary to adjust the feeding phase of the radiating element in the phased array antenna in S10 is:
[0011] The target azimuth and target elevation angles are obtained when the antenna plane of the phased array antenna is aligned with the target object. The target azimuth angle = arctan{tan(sg) / sin(u)}, and the target elevation angle = the angle formed by the horizontal line of the ground plane at the receiving station to which the phased array antenna belongs and the center line of the phased array antenna, where g represents the longitude of the location of the phased array antenna, s represents the longitude of the location of the target object, and u represents the latitude of the location of the phased array antenna.
[0012] The acquired target azimuth angle, target elevation angle, and position coordinates of the target object are represented in a drawn real-time three-dimensional spatial pattern to obtain an electromagnetic wave transmission line. The real-time three-dimensional spatial pattern uses the phase center of the phased array antenna as the coordinate origin. If the electromagnetic wave transmission line is located within the lobe of the real-time three-dimensional spatial pattern, there is no need to adjust the feeding phase of the radiating unit in the phased array antenna. If the electromagnetic wave transmission line is partially located within the lobe of the real-time three-dimensional spatial pattern or the electromagnetic wave transmission line is outside the lobe of the real-time three-dimensional spatial pattern, it is necessary to adjust the feeding phase of the radiating unit in the phased array antenna. Whether the feeding phase of the radiating unit in the phased array antenna needs to be adjusted is determined based on the calculated target azimuth angle and target elevation angle, thereby improving the determination accuracy.
[0013] Furthermore, the S20 includes:
[0014] S201: When it is necessary to adjust the feeding phase of the radiating element in the phased array antenna, a target position point in the lobe is determined according to the length f of the electromagnetic wave transmission line, and the distance between the target position point and the coordinate origin is greater than or equal to the length f of the electromagnetic wave transmission line.
[0015] S202: If there is a target position point in the lobe, number each target position point in the lobe, and the numbering result is: i = 1, 2, ..., m; m represents the total number, and the direction vector A is set to point from the coordinate origin to the i-th target position point. 1i =(x 1i ,y 1i ,z 1i ), let the coordinate origin point to the direction vector A2=(x2,y2,z2) where the target object is located, then according to For two direction vectors A 1i , A2, and calculate the angle between minγ iThe corresponding number is determined, and the determined number is t, t = 1, 2, ..., m, then the control deviation angle of the phased array antenna = γ t ;
[0016] If the target position point does not exist in the lobe, the maximum distance between the coordinate origin and each edge point of the lobe is calculated according to the three-dimensional distance formula. The edge point corresponding to the maximum distance value is used as the target edge point. The position coordinates of the target edge point are marked in the real-time three-dimensional space direction map. The direction vector A3 pointing from the coordinate origin to the target edge point is set to (x3, y3, z3).
[0017] according to By calculating the angle between the two directional vectors A3 and A2, the phased array antenna's control deviation angle = r. By finding the target position point and target edge point in the lobe, the radiation situation of the phased array antenna's radiation area can be quickly controlled.
[0018] Furthermore, the specific method of determining the area where the radiation unit to be controlled in the phased array antenna is located in S30 is:
[0019] If there is a target point in the lobe, the distance d between the tth target point and the coordinate origin is calculated according to the three-dimensional distance formula. t Calculate according to W t =(kd t ) / (Nbcosγ t ) calculate the beam width of the phased array antenna corresponding to the tth target position point;
[0020] At this time, the area where the radiation unit to be controlled in the phased array antenna is located is: The horizontal radiation unit number in the phased array antenna is The area within the range, γ 1t Represents the angle between the direction vector coinciding with the positive half axis of the X-axis and the direction vector A2;
[0021] If the target position point does not exist in the lobe, the distance d1 between the target edge point and the coordinate origin is calculated according to the three-dimensional distance formula, and the beam width corresponding to the target edge point of the phased array antenna is calculated according to W1 = (kd1) / (Nbcosr);
[0022] At this time, the area where the radiation unit to be controlled in the phased array antenna is located is: The horizontal radiation unit number in the phased array antenna is The area formed by the range, r1 represents the angle between the direction vector coinciding with the positive half axis of the X axis and the direction vector A3, Indicates the rounding symbol. Indicates rounding of (r1*N) / 180°, 0 indicates the number of decimal places is 0;
[0023] Here, k represents the beamwidth factor, N represents the total number of radiating elements in the phased array, b represents the spacing between adjacent radiating elements, and h represents the width of the radiating element. When determining the area where the radiating elements are to be controlled, the phased array antenna's inherent configuration and the target's real-time location are taken into consideration to ensure real-time and accurate determination of the area, further improving the system's effectiveness.
[0024] Furthermore, the specific method of analyzing the feed phase control value of the radiating unit to be controlled in S40 is:
[0025] When there is a target point in the lobe:
[0026] If d t *s≥f, then the feed phase control value H1 of the unit to be controlled is 0, where f represents the antenna efficiency of the phased array antenna;
[0027] If d t *s<f, then the feed phase control value of the unit to be controlled H2=(2*π*b*s inγ t ) / (λ*f), at this time the electromagnetic wave emitted by the target object is γ 1t When it arrives, the feed phase control value of the radiating unit to be controlled is H2;
[0028] When there is no target location point in the lobe:
[0029] The feed phase control value for the controlled element is predicted based on H3 = (2*π*b*s inr) / (λ*f). When the electromagnetic wave emitted by the target object arrives at r1, the feed phase control value for the controlled radiating element is H3. This eliminates the influence of antenna efficiency on the analysis results during the analysis of the phase shift of the controlled radiating element, improving analysis accuracy.
[0030] An antenna control system based on data analysis, the system comprising a data analysis module, a control deviation angle prediction module, a to-be-controlled area determination module, and an antenna control module;
[0031] The data analysis module is used to determine whether it is necessary to adjust the feeding phase of the radiating element in the phased array antenna;
[0032] The control deviation angle prediction module is used to predict the control deviation angle of the phased array antenna;
[0033] The module for determining the area to be controlled is used to determine the area where the radiation unit to be controlled in the phased array antenna is located;
[0034] The antenna control module is used to analyze the feeding phase control value of the radiating unit to be controlled and to control the feeding phase of the radiating unit to be controlled.
[0035] Furthermore, the data analysis module includes a target azimuth angle acquisition unit, a target pitch angle acquisition unit and an analysis and judgment unit;
[0036] The target azimuth angle acquisition unit calculates the target azimuth angle when the antenna plane of the phased array antenna is aligned with the target object according to the longitude and latitude of the position of the phased array antenna and the longitude of the position of the target object, and acquires the calculation result;
[0037] The target pitch angle acquisition unit determines the target pitch angle when the antenna plane of the phased array antenna is aligned with the target object based on the angle formed by the horizontal line of the ground plane where the receiving station to which the phased array antenna belongs is located and the center line of the phased array antenna, and acquires the determination result;
[0038] The analysis and judgment unit obtains an electromagnetic wave transmission line based on the acquired target azimuth angle, target pitch angle and position coordinates of the target object, and judges whether it is necessary to adjust the feeding phase of the radiating unit in the phased array antenna according to the position of the electromagnetic wave transmission line.
[0039] Furthermore, the control deviation angle prediction module includes a target position point search unit, a target edge point search unit and a control deviation angle prediction unit;
[0040] When the feeding phase of the radiating unit in the phased array antenna needs to be regulated, the target position point searching unit searches for the target position point in the lobe according to the length value of the electromagnetic wave transmission line;
[0041] When there is no target position point in the lobe, the target edge point searching unit searches for the target edge point in the lobe according to the maximum distance between the coordinate origin and each edge point of the lobe;
[0042] The control deviation angle prediction unit predicts the control deviation angle of the phased array antenna according to the position coordinates of the target position point or the target edge point to be found.
[0043] Furthermore, the module for determining the area to be controlled includes a beam width calculation unit and a unit for determining the area to be controlled;
[0044] The beam width calculation unit calculates the beam width of the phased array antenna at the corresponding target position point or the corresponding target edge point based on the distance between the target position point and the coordinate origin, or the distance between the target origin point and the coordinate origin, and the control deviation angle predicted by the control deviation angle prediction unit;
[0045] The to-be-controlled area determination unit determines the area where the to-be-controlled radiating units in the phased array antenna are located according to the calculation result transmitted by the beam width calculation unit and the setting of the radiating units in the phased array antenna.
[0046] Furthermore, the antenna control module comprises a first control and analysis unit, a second control and analysis unit, a third control and analysis unit and an antenna control unit;
[0047] The first control and analysis unit determines the feeding phase control value of the unit to be controlled when there is a target position point in the lobe and the electromagnetic wave emitted by the target object at this time can be received by the phased array antenna;
[0048] When there is a target position point in the lobe and the electromagnetic waves emitted by the target object at this time cannot be received by the phased array antenna, the second control and analysis unit predicts the feeding phase control value of the unit to be controlled according to the constructed prediction module;
[0049] When there is a target edge point in the lobe, the third control analysis unit predicts the feeding phase control value of the unit to be controlled according to the constructed prediction formula;
[0050] The antenna control unit controls the feeding phase control value of the to-be-controlled radiating unit of the phased array antenna according to the control analysis results of the first control analysis unit, the second control analysis unit, and the third control analysis unit.
[0051] Compared with the prior art, the present invention has the following beneficial effects:
[0052] 1. The present invention uses the length of the electromagnetic wave transmission line to quickly search for target position points and target edge points in the lobe. Based on the search results, the control deviation angle of the phased array antenna is predicted. Based on the prediction results, the area of the radiating unit to be controlled in the phased array antenna is determined, and the feed phase control value of the radiating unit to be controlled is analyzed. This process improves prediction efficiency while also improving data processing accuracy.
[0053] 2. In the process of determining the area where the radiation unit to be controlled is located, the present invention only controls the radiation conditions in the radiation area where the target object is located, and will not affect the radiation conditions in other radiation areas, thereby avoiding affecting the phased array antenna's reception of electromagnetic waves emitted by other target objects, thereby improving the control effect of the phased array antenna.
[0054] 3. In the process of analyzing the feed phase control value of the regulated radiating unit, the present invention takes into account the influence of antenna efficiency on the control value, and ensures that the phased array antenna can accurately receive the electromagnetic waves emitted by the target object under the analyzed control value, thereby improving the phased array antenna's signal receiving capability and thus improving the use effect of the system. BRIEF DESCRIPTION OF THE DRAWINGS
[0055] Figure 1 A schematic diagram of the workflow of an antenna control system and method based on data analysis of the present invention;
[0056] Figure 2 The present invention is a schematic structural diagram of the working principle of an antenna control system and method based on data analysis. DETAILED DESCRIPTION
[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0058] Example: Figure 1-Figure 2 As shown, the present invention provides an antenna control system and method technical solution based on data analysis, an antenna control method based on data analysis, the method comprising:
[0059] S10: Draw a real-time three-dimensional spatial pattern of the phased array antenna and determine whether the feed phase of the radiating element in the phased array antenna needs to be adjusted based on the target azimuth and elevation angle when the antenna plane of the phased array antenna is aligned with the target object, which includes satellites and mobile objects.
[0060] The specific method for S10 to determine whether it is necessary to adjust the feeding phase of the radiating element in the phased array antenna is:
[0061] The target azimuth and elevation angles of the phased array antenna when the antenna plane is aligned with the target object are obtained. The target azimuth angle = arctan{tan(sg) / sin(u)}, and the target elevation angle = the angle formed by the horizontal line of the ground plane at the receiving station where the phased array antenna is located and the center line of the phased array antenna, where g represents the longitude of the phased array antenna, s represents the longitude of the target object, and u represents the latitude of the phased array antenna. Alignment refers to the process of aligning the azimuth and elevation angles of the phased array antenna so that the center of the phased array antenna beam is aligned with the target object.
[0062] The acquired target azimuth angle, target elevation angle, and position coordinates of the target object are represented in the drawn real-time three-dimensional spatial pattern to obtain an electromagnetic wave transmission line. The real-time three-dimensional spatial pattern uses the phase center of the phased array antenna as the coordinate origin. The phase center of the phased array antenna is the position of the equivalent point source of the antenna's electromagnetic radiation. If the electromagnetic wave transmission line is within the lobe of the real-time three-dimensional spatial pattern, there is no need to adjust the feeding phase of the radiating element in the phased array antenna. If the electromagnetic wave transmission line is partially within the lobe of the real-time three-dimensional spatial pattern or the electromagnetic wave transmission line is outside the lobe of the real-time three-dimensional spatial pattern, it is necessary to adjust the feeding phase of the radiating element in the phased array antenna. The lobe refers to the general term for several maximum radiation areas in the real-time three-dimensional spatial pattern.
[0063] S20: When it is necessary to control the feeding phase of the radiating element in the phased array antenna, a target position point or a target edge point is searched in the real-time three-dimensional spatial pattern, and based on the search result, a control deviation angle of the phased array antenna is predicted;
[0064] The S20 includes:
[0065] S201: When it is necessary to adjust the feeding phase of the radiating element in the phased array antenna, a target position point in the lobe is determined according to the length f of the electromagnetic wave transmission line, and the distance between the target position point and the coordinate origin is greater than or equal to the length f of the electromagnetic wave transmission line.
[0066] S202: If there is a target position point in the lobe, number each target position point in the lobe, and the numbering result is: i = 1, 2, ..., m; m represents the total number, and the direction vector A is set to point from the coordinate origin to the i-th target position point. 1i =(x 1i ,y 1i ,z 1i ), let the coordinate origin point to the direction vector A2=(x2,y2,z2) where the target object is located, then according to For two direction vectors A 1i , A2, and calculate the angle between minγ i The corresponding number is determined, and the determined number is t, t = 1, 2, ..., m, then the control deviation angle of the phased array antenna = γ t ;
[0067] If the target position point does not exist in the lobe, the maximum distance between the coordinate origin and each edge point of the lobe is calculated according to the three-dimensional distance formula. The edge point corresponding to the maximum distance value is used as the target edge point. The position coordinates of the target edge point are marked in the real-time three-dimensional space direction map. The direction vector A3 pointing from the coordinate origin to the target edge point is set to (x3, y3, z3).
[0068] according to Calculate the angle between the two direction vectors A3 and A2, and the control deviation angle of the phased array antenna = r;
[0069] S30: Determine an area where a radiation unit to be controlled in the phased array antenna is located, based on the beam width corresponding to each position point of the phased array antenna;
[0070] The specific method for S30 to determine the area where the radiation unit to be controlled in the phased array antenna is located is:
[0071] If there is a target point in the lobe, the distance d between the tth target point and the coordinate origin is calculated according to the three-dimensional distance formula. t Calculate according to W t =(kd t ) / (Nbcosγ t ) calculate the beam width of the phased array antenna corresponding to the tth target position point;
[0072] At this time, the area where the radiation unit to be controlled in the phased array antenna is located is: The horizontal radiation unit number in the phased array antenna is The area within the range, γ 1t It represents the angle between the direction vector coinciding with the positive half axis of the X axis and the direction vector A2. Represents the pair (γ 1t *N) / 180° is rounded, where 0 indicates zero decimal places. The transverse direction of the phased array antenna corresponds to the X-axis in the real-time three-dimensional spatial pattern, and the longitudinal direction of the phased array antenna corresponds to the Z-axis in the real-time three-dimensional spatial pattern. The transverse radiating elements in the phased array antenna are numbered in the direction from the positive half-axis of the X-axis to the negative half-axis of the X-axis in the real-time three-dimensional spatial pattern. The numbering result is: p = 1, 2, …, q; q represents the total number of numbers, and N / q = the total number of longitudinal radiating elements set in the phased array antenna.
[0073] If the target position point does not exist in the lobe, the distance d1 between the target edge point and the coordinate origin is calculated according to the three-dimensional distance formula, and the beam width corresponding to the target edge point of the phased array antenna is calculated according to W1 = (kd1) / (Nbcosr);
[0074] At this time, the area where the radiation unit to be controlled in the phased array antenna is located is: The horizontal radiation unit number in the phased array antenna is The area formed by the range, r1 represents the angle between the direction vector coinciding with the positive half axis of the X axis and the direction vector A3, Indicates the rounding symbol. Indicates rounding of (r1*N) / 180°, 0 indicates the number of decimal places is 0;
[0075] Where k represents the beamwidth factor, N represents the total number of radiating elements in the phased array, b represents the spacing between two adjacent radiating elements, and h represents the width of the radiating element.
[0076] S40: analyzing the feeding phase control value of the radiating unit to be controlled, and controlling the feeding phase of the radiating unit to be controlled;
[0077] The specific method for S40 to analyze the feed phase control value of the radiating unit to be controlled is:
[0078] When there is a target point in the lobe:
[0079] If d t *s≥f, then the feed phase control value H1 of the unit to be controlled is 0, where f represents the antenna efficiency of the phased array antenna;
[0080] If d t *s<f, then the feed phase control value of the unit to be controlled H2=(2*π*b*s inγ t ) / (λ*f), at this time the electromagnetic wave emitted by the target object is γ 1t When it arrives, the feed phase control value of the radiating unit to be controlled is H2;
[0081] When there is no target location point in the lobe:
[0082] The feeding phase control value of the radiating unit to be controlled is predicted according to H3=(2*π*b*s inr) / (λ*f). At this time, when the electromagnetic wave emitted by the target object arrives at r1, the feeding phase control value of the radiating unit to be controlled is H3.
[0083] An antenna control system based on data analysis, the system includes a data analysis module, a control deviation angle prediction module, a module for determining a region to be controlled, and an antenna control module;
[0084] The data analysis module is used to determine whether the feeding phase of the radiating element in the phased array antenna needs to be adjusted;
[0085] The data analysis module includes a target azimuth angle acquisition unit, a target pitch angle acquisition unit and an analysis and judgment unit;
[0086] The target azimuth angle acquisition unit calculates the target azimuth angle when the antenna plane of the phased array antenna is aligned with the target object according to the longitude and latitude of the location of the phased array antenna and the longitude of the location of the target object, and acquires the calculation result;
[0087] The target elevation angle acquisition unit determines the target elevation angle when the antenna plane of the phased array antenna is aligned with the target object based on the angle formed by the horizontal line of the ground plane where the receiving station to which the phased array antenna belongs is located and the center line of the phased array antenna, and acquires the determination result;
[0088] The analysis and judgment unit obtains an electromagnetic wave transmission line based on the acquired target azimuth angle, target pitch angle and position coordinates of the target object, and determines whether the feeding phase of the radiating element in the phased array antenna needs to be adjusted according to the position of the electromagnetic wave transmission line;
[0089] The control deviation angle prediction module is used to predict the control deviation angle of the phased array antenna;
[0090] The control deviation angle prediction module includes a target position point search unit, a target edge point search unit and a control deviation angle prediction unit;
[0091] When the feeding phase of the radiating element in the phased array antenna needs to be adjusted, the target position point finding unit searches for the target position point in the lobe according to the length value of the electromagnetic wave transmission line;
[0092] When the target position point does not exist in the lobe, the target edge point search unit searches for the target edge point in the lobe according to the maximum distance between the coordinate origin and each edge point of the lobe;
[0093] The control deviation angle prediction unit predicts the control deviation angle of the phased array antenna according to the position coordinates of the target position point or the target edge point to be found;
[0094] The module for determining the area to be controlled is used to determine the area where the radiation unit to be controlled in the phased array antenna is located;
[0095] The module for determining the area to be controlled includes a beam width calculation unit and a unit for determining the area to be controlled;
[0096] The beam width calculation unit calculates the beam width of the phased array antenna at the corresponding target position point or the corresponding target edge point based on the distance between the target position point and the coordinate origin, or the distance between the target origin point and the coordinate origin, and the control deviation angle predicted by the control deviation angle prediction unit;
[0097] The to-be-controlled area determination unit determines an area where the to-be-controlled radiating elements in the phased array antenna are located based on the calculation result transmitted by the beam width calculation unit and the setting of the radiating elements in the phased array antenna;
[0098] The antenna control module is used to analyze the feed phase control value of the regulated radiating unit and to regulate the feed phase of the regulated radiating unit;
[0099] The antenna control module comprises a first control and analysis unit, a second control and analysis unit, a third control and analysis unit and an antenna control unit;
[0100] The first control and analysis unit determines the feeding phase control value of the unit to be controlled when there is a target position point in the lobe and the electromagnetic wave emitted by the target object at this time can be received by the phased array antenna;
[0101] When there is a target position point in the lobe and the electromagnetic wave emitted by the target object at this time cannot be received by the phased array antenna, the second control analysis unit predicts the feeding phase control value of the unit to be controlled according to the constructed prediction module;
[0102] When a target edge point exists in the lobe, the third control analysis unit predicts the feeding phase control value of the unit to be controlled according to the constructed prediction formula;
[0103] The antenna control unit controls the feeding phase control value of the to-be-controlled radiating element of the phased array antenna according to the control analysis results of the first control analysis unit, the second control analysis unit, and the third control analysis unit.
[0104] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
Claims
1. An antenna control method based on data analysis, characterized in that: The method comprises: S10: Draw the real-time three-dimensional spatial pattern of the phased array antenna. Based on the target azimuth and elevation angles when the antenna plane of the phased array antenna is aligned with the target object, determine whether the feed phase of the radiating element in the phased array antenna needs to be adjusted. The specific method is as follows: The target azimuth and target elevation angles are obtained when the antenna plane of the phased array antenna is aligned with the target object. The target azimuth angle = arctan{tan(sg) / sin(u)}, and the target elevation angle = the angle formed by the horizontal line of the ground plane at the receiving station to which the phased array antenna belongs and the center line of the phased array antenna, where g represents the longitude of the location of the phased array antenna, s represents the longitude of the location of the target object, and u represents the latitude of the location of the phased array antenna; The acquired target azimuth angle, target elevation angle, and position coordinates of the target object are represented in a drawn real-time three-dimensional spatial pattern to obtain an electromagnetic wave transmission line. The real-time three-dimensional spatial pattern uses the phase center of the phased array antenna as the coordinate origin. If the electromagnetic wave transmission line is within a lobe in the real-time three-dimensional spatial pattern, then there is no need to adjust the feeding phase of the radiating element in the phased array antenna. If the electromagnetic wave transmission line is partially within the lobe in the real-time three-dimensional spatial pattern or the electromagnetic wave transmission line is outside the lobe in the real-time three-dimensional spatial pattern, then it is necessary to adjust the feeding phase of the radiating element in the phased array antenna. S20: When it is necessary to control the feeding phase of the radiating element in the phased array antenna, a target position point or a target edge point is searched in the real-time three-dimensional spatial pattern, and based on the search result, a control deviation angle of the phased array antenna is predicted; The S20 includes: S201: When it is necessary to adjust the feeding phase of the radiating element in the phased array antenna, a target position point in the lobe is determined according to the length f of the electromagnetic wave transmission line, and the distance between the target position point and the coordinate origin is greater than or equal to the length f of the electromagnetic wave transmission line. S202: If there is a target position point in the lobe, number each target position point in the lobe, and the numbering result is: i = 1, 2, ..., m; m represents the total number, and the direction vector A is set to point from the coordinate origin to the i-th target position point. 1i =(x 1i ,y 1i ,z 1i ), let the coordinate origin point to the direction vector A2=(x2,y2,z2) where the target object is located, then according to For two direction vectors A 1i , A2, and calculate the angle between minγ i The corresponding number is determined, and the determined number is t, t = 1, 2, ..., m, then the control deviation angle of the phased array antenna = γ t ; If the target position point does not exist in the lobe, the maximum distance between the coordinate origin and each edge point of the lobe is calculated according to the three-dimensional distance formula. The edge point corresponding to the maximum distance value is used as the target edge point. The position coordinates of the target edge point are marked in the real-time three-dimensional space direction map. The direction vector A3 pointing from the coordinate origin to the target edge point is set to (x3, y3, z3). according to Calculate the angle between the two direction vectors A3 and A2, and the control deviation angle of the phased array antenna = r; S30: Determine the region where the radiation unit to be controlled in the phased array antenna is located, based on the beam width corresponding to each position point of the phased array antenna. The specific method is as follows: If there is a target point in the lobe, the distance d between the tth target point and the coordinate origin is calculated according to the three-dimensional distance formula. t Calculate according to W t =(kd t ) / (Nbcosγ t ) calculate the beam width of the phased array antenna corresponding to the tth target position point; At this time, the area where the radiation unit to be controlled in the phased array antenna is located is: The horizontal radiation unit number in the phased array antenna is The area within the range, γ 1t Represents the angle between the direction vector coinciding with the positive half axis of the X-axis and the direction vector A2; If the target position point does not exist in the lobe, the distance d1 between the target edge point and the coordinate origin is calculated according to the three-dimensional distance formula, and the beam width corresponding to the target edge point of the phased array antenna is calculated according to W1 = (kd1) / (Nbcosr); At this time, the area where the radiation unit to be controlled in the phased array antenna is located is: The horizontal radiation unit number in the phased array antenna is The area formed by the range, r1 represents the angle between the direction vector coinciding with the positive half axis of the X axis and the direction vector A3, Indicates the rounding symbol. Indicates rounding of (r1*N) / 180°, 0 indicates the number of decimal places is 0; Where k represents the beamwidth factor, N represents the total number of radiating elements in the phased array, b represents the spacing between two adjacent radiating elements, and h represents the width of the radiating element. S40: Analyze the feeding phase control value of the radiating unit to be controlled, and control the feeding phase of the radiating unit to be controlled.
2. The antenna control method based on data analysis according to claim 1, characterized in that: The specific method of analyzing the feed phase control value of the radiating unit to be controlled in S40 is: When there is a target point in the lobe: If d t *s≥f, then the feed phase control value H1 of the unit to be controlled is 0, where f represents the antenna efficiency of the phased array antenna; If d t *s<f, then the feed phase control value of the unit to be controlled H2=(2*π*b*sinγ t ) / (λ*f), at this time the electromagnetic wave emitted by the target object is γ 1t When it arrives, the feeding phase control value of the radiation unit to be controlled is H2, where λ represents the wavelength of the electromagnetic wave emitted by the target object; When there is no target location point in the lobe: The feeding phase control value of the radiating unit to be controlled is predicted according to H3=(2*π*b*sinr) / (λ*f). At this time, when the electromagnetic wave emitted by the target object arrives at r1, the feeding phase control value of the radiating unit to be controlled is H3.
3. An antenna control system based on data analysis applied to the antenna control method based on data analysis according to any one of claims 1 to 2, characterized in that: The system includes a data analysis module, a control deviation angle prediction module, a to-be-controlled area determination module, and an antenna control module; The data analysis module is used to determine whether it is necessary to adjust the feeding phase of the radiating element in the phased array antenna; The control deviation angle prediction module is used to predict the control deviation angle of the phased array antenna; The module for determining the area to be controlled is used to determine the area where the radiation unit to be controlled in the phased array antenna is located; The antenna control module is used to analyze the feeding phase control value of the radiating unit to be controlled and to control the feeding phase of the radiating unit to be controlled.
4. The antenna control system based on data analysis according to claim 3, characterized in that: The data analysis module includes a target azimuth angle acquisition unit, a target pitch angle acquisition unit and an analysis and judgment unit; The target azimuth angle acquisition unit calculates the target azimuth angle when the antenna plane of the phased array antenna is aligned with the target object according to the longitude and latitude of the position of the phased array antenna and the longitude of the position of the target object, and acquires the calculation result; The target pitch angle acquisition unit determines the target pitch angle when the antenna plane of the phased array antenna is aligned with the target object based on the angle formed by the horizontal line of the ground plane where the receiving station to which the phased array antenna belongs is located and the center line of the phased array antenna, and acquires the determination result; The analysis and judgment unit obtains an electromagnetic wave transmission line based on the acquired target azimuth angle, target pitch angle and position coordinates of the target object, and judges whether it is necessary to adjust the feeding phase of the radiating unit in the phased array antenna according to the position of the electromagnetic wave transmission line.
5. The antenna control system based on data analysis according to claim 4, characterized in that: The control deviation angle prediction module includes a target position point search unit, a target edge point search unit and a control deviation angle prediction unit; When the feeding phase of the radiating unit in the phased array antenna needs to be regulated, the target position point searching unit searches for the target position point in the lobe according to the length value of the electromagnetic wave transmission line; When there is no target position point in the lobe, the target edge point searching unit searches for the target edge point in the lobe according to the maximum distance between the coordinate origin and each edge point of the lobe; The control deviation angle prediction unit predicts the control deviation angle of the phased array antenna according to the position coordinates of the target position point or the target edge point to be found.
6. The antenna control system based on data analysis according to claim 5, characterized in that: The module for determining the area to be controlled includes a beam width calculation unit and a unit for determining the area to be controlled; The beam width calculation unit calculates the beam width of the phased array antenna at the corresponding target position point or the corresponding target edge point based on the distance between the target position point and the coordinate origin, or the distance between the target origin point and the coordinate origin, and the control deviation angle predicted by the control deviation angle prediction unit; The to-be-controlled area determination unit determines the area where the to-be-controlled radiating units in the phased array antenna are located according to the calculation result transmitted by the beam width calculation unit and the setting of the radiating units in the phased array antenna.
7. The antenna control system based on data analysis according to claim 6, characterized in that: The antenna control module comprises a first control and analysis unit, a second control and analysis unit, a third control and analysis unit and an antenna control unit; The first control and analysis unit determines the feeding phase control value of the unit to be controlled when there is a target position point in the lobe and the electromagnetic wave emitted by the target object at this time can be received by the phased array antenna; When there is a target position point in the lobe and the electromagnetic waves emitted by the target object at this time cannot be received by the phased array antenna, the second control and analysis unit predicts the feeding phase control value of the unit to be controlled according to the constructed prediction module; When there is a target edge point in the lobe, the third control analysis unit predicts the feeding phase control value of the unit to be controlled according to the constructed prediction formula; The antenna control unit controls the feeding phase control value of the to-be-controlled radiating unit of the phased array antenna according to the control analysis results of the first control analysis unit, the second control analysis unit, and the third control analysis unit.
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