CN111342233B - Rapid and accurate alignment method of narrow-beam antenna - Google Patents
Rapid and accurate alignment method of narrow-beam antenna Download PDFInfo
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- CN111342233B CN111342233B CN202010185679.1A CN202010185679A CN111342233B CN 111342233 B CN111342233 B CN 111342233B CN 202010185679 A CN202010185679 A CN 202010185679A CN 111342233 B CN111342233 B CN 111342233B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
- H01Q3/10—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation to produce a conical or spiral scan
Abstract
The invention discloses a fast fine alignment method of a narrow beam antenna, which relates to the technical field of communication and comprises the following steps: 1) determining an antenna scanning stepping angle; 2) fine antenna azimuth alignment and fine antenna pitch alignment. In order to solve the problem that the received signal is influenced by various external factors to generate errors and improve the fine alignment effect, the method obtains the optimal scattering area of the antenna by utilizing data analysis and related algorithms, has the advantages of short alignment time, high precision and the like, and can be applied to fine alignment of the antenna of a scattering communication system and other systems.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a fast and accurate alignment method of a narrow beam antenna.
Background
Because the antenna beam is narrow and the communication distance is long, the accuracy of the automatic alignment of the antenna plays a crucial role in ensuring and improving the communication quality of the scattering communication system. The antenna coarse alignment process mainly calculates the corresponding azimuth angle of the antenna according to the longitude and latitude information reported by the Beidou, so that the purpose of coarse alignment is achieved. The antenna fine alignment process mainly includes two-dimensional scanning of the antenna direction and the pitching so as to obtain the antenna attitude angle when the received signal is maximum, and therefore the purpose of fine alignment is achieved.
Because the received signal measured during fine alignment is susceptible to various external factors, immeasurable errors exist between the received signal and the ideal condition, the fine alignment result is seriously affected, and the communication quality of the whole scattering communication system is poor. Therefore, it is desirable to design a fast fine alignment method for a narrow beam antenna that can resist deviation of fine alignment results due to various factors.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a fast and precise alignment method for narrow beam antenna to solve the above problems in the background art, and to obtain the optimal scattering area of the antenna by using data analysis and related algorithm.
In order to achieve the purpose, the invention provides the following technical scheme:
a fast fine alignment method for narrow beam antenna includes the following steps:
(1) determining an antenna scanning stepping angle: selecting a scanning stepping angle according to the size of the beam angle;
(2) fine aligning the pitch angle and the azimuth angle of the antenna;
and (3) precisely aligning the pitch angle of the antenna: keeping the transmitting end antenna still, scanning 3 points respectively above and below the pitch angle position of the receiving end antenna when the coarse alignment is finished, and calculating the received signal intensity of each point; taking the size of a sliding window as 3, calculating the sum of the signal intensity of every adjacent 3 points to obtain a window with the maximum sum of the signal intensity, wherein the center of the window is the optimal scattering position of the antenna; wherein a pitch stepping angle is formed between every two points;
and (3) fine alignment of an antenna azimuth angle: keeping the transmitting end antenna still, scanning 3 points respectively on the left and right sides of the azimuth position of the receiving end antenna when the coarse alignment is finished, and calculating the received signal strength of each point; and taking the size of the sliding window as 3, calculating the sum of the signal intensity of every adjacent 3 points to obtain a window with the maximum sum of the signal intensity, wherein the center of the window is the optimal scattering position of the antenna, and an azimuth stepping angle is formed between every two points.
If the window with the maximum sum of the signal intensities in the fine antenna pitch angle alignment and the fine antenna azimuth angle alignment in the step (2) appears at the left edge position and the right edge position, continuing scanning 1 point outside the edge to generate a new window, and if the sum of the signal intensities of the new window is reduced, selecting the center of the window with the maximum edge position before as the optimal scattering position of the antenna; if the sum of the signal intensity of the new window is larger, the outward scanning is continued until the optimal scattering position of the antenna is obtained.
A computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the method.
Compared with the prior art, the invention has the beneficial effects that:
the invention carries out the antenna fine alignment by utilizing the data analysis and the related algorithm, and solves the problem that the communication quality of the whole scattering communication system is poor because the received signal measured during the fine alignment is influenced by various external factors, so that the received signal directly generates an immeasurable error under an ideal condition, and the fine alignment result is seriously influenced.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to specific examples. The following examples are presented to assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any manner. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
A method for fast fine alignment of a narrow beam antenna, comprising the steps of:
(1) antenna scanning step angle: and selecting a proper scanning stepping angle according to the size of the beam angle, wherein the proper scanning stepping angle comprises an azimuth stepping angle and a pitching stepping angle.
Wherein the azimuth step angle and the pitch step angle may not be the same.
(2) Fine aligning the pitch angle and the azimuth angle of the antenna;
and (3) precisely aligning the pitch angle of the antenna: keeping the transmitting end antenna still, scanning 3 points respectively above and below the pitch angle position of the receiving end antenna when the coarse alignment is finished, and calculating the received signal intensity of each point; taking the size of a sliding window as 3, calculating the sum of the signal intensity of every adjacent 3 points to obtain a window with the maximum sum of the signal intensity, wherein the center of the window is the optimal scattering position of the antenna; wherein a pitch stepping angle is formed between every two points;
the number of times of detecting the signal intensity of each scanning point is not less than 10, abnormal value detection is carried out on each measurement result, the abnormal value is deleted, and then the normal data are summed and the average value is calculated to be used as the received signal intensity of the position.
And (3) fine alignment of an antenna azimuth angle: keeping the transmitting end antenna still, scanning 3 points respectively on the left and right sides of the azimuth position of the receiving end antenna when the coarse alignment is finished, and calculating the received signal strength of each point; taking the size of a sliding window as 3, calculating the sum of the signal intensity of every adjacent 3 points to obtain a window with the maximum sum of the signal intensity, wherein the center of the window is the optimal scattering position of the antenna, and an azimuth stepping angle is formed between every two points;
the number of times of detecting the signal intensity of each scanning point is not less than 10, abnormal value detection is carried out on each measurement result, the abnormal value is deleted, and then the normal data are summed and the average value is calculated to be used as the received signal intensity of the position.
If the window with the maximum sum of the signal intensities during the fine alignment of the pitch angle and the azimuth angle of the antenna appears at the left edge position and the right edge position, continuing scanning 1 point outside the edge to generate a new window, and if the sum of the signal intensities of the new window is reduced, selecting the center of the window with the maximum sum of the front edge position as the optimal scattering position of the antenna; if the sum of the signal intensity of the new window is larger, the outward scanning is continued until the optimal scattering position of the antenna is obtained.
In this embodiment, a computer readable storage medium has stored thereon computer program instructions which, when executed by a processor, implement the steps of the above-described method.
In this embodiment, the fast and precise alignment method for the narrowband beam antenna is applied to antenna alignment.
It should be further noted that the number of scanning points and the size of the sliding window may be adjusted accordingly according to the actual application environment.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a random access memory, a flash memory, a read only memory, a programmable read only memory, an electrically erasable programmable memory, a register, etc.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. All embodiments need not be, and cannot be, described here. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (3)
1. A method for fast fine alignment of a narrow beam antenna, comprising the steps of:
(1) determining an antenna scanning stepping angle: selecting scanning stepping angles including an azimuth stepping angle and a pitching stepping angle according to the size of the beam angle;
(2) fine aligning the pitch angle and the azimuth angle of the antenna;
and (3) precisely aligning the pitch angle of the antenna: keeping the transmitting end antenna still, scanning 3 points respectively above and below the pitch angle position of the receiving end antenna when the coarse alignment is finished, and calculating the received signal intensity of each point; taking the size of a sliding window as 3, calculating the sum of the signal intensity of every adjacent 3 points to obtain a window with the maximum sum of the signal intensity, wherein the center of the window is the optimal scattering position of the antenna; wherein a pitch stepping angle is formed between every two points;
and (3) fine alignment of an antenna azimuth angle: keeping the transmitting end antenna still, scanning 3 points respectively on the left and right sides of the azimuth position of the receiving end antenna when the coarse alignment is finished, and calculating the received signal strength of each point; and taking the size of the sliding window as 3, calculating the sum of the signal intensity of every adjacent 3 points to obtain a window with the maximum sum of the signal intensity, wherein the center of the window is the optimal scattering position of the antenna, and an azimuth stepping angle is formed between every two points.
2. The method according to claim 1, wherein in step (2), if the window with the largest sum of signal strengths during the fine pitch alignment and the fine azimuth alignment of the antenna occurs at an edge position, the scanning is continued for 1 point outside the edge to generate a new window, and if the sum of signal strengths of the new window becomes smaller, the center of the window with the largest sum of signal strengths at the edge position is selected as the optimal scattering position of the antenna; if the sum of the signal intensity of the new window is larger, the outward scanning is continued until the optimal scattering position of the antenna is obtained.
3. A computer-readable storage medium, on which computer program instructions are stored, which program instructions, when executed by a processor, carry out the steps of the method according to any one of claims 1-2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010185679.1A CN111342233B (en) | 2020-03-17 | 2020-03-17 | Rapid and accurate alignment method of narrow-beam antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010185679.1A CN111342233B (en) | 2020-03-17 | 2020-03-17 | Rapid and accurate alignment method of narrow-beam antenna |
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| CN111342233A CN111342233A (en) | 2020-06-26 |
| CN111342233B true CN111342233B (en) | 2021-12-07 |
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| CN109742542B (en) * | 2019-01-08 | 2020-11-17 | 北京慧清科技有限公司 | Rapid automatic alignment method for narrow beam antenna with static intermediate pass |
| CN110764119B (en) * | 2019-11-07 | 2020-06-16 | 中国人民解放军火箭军工程大学 | Satellite antenna autonomous measurement and control method and system independent of satellite navigation information |
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