A narrow-beam antenna wide-range fast alignment method

Abstract

The application discloses a narrow-beam antenna wide-range fast alignment method, and belongs to the technical field of communication. The method comprises the following steps: 1) a master station antenna and a slave station antenna acquire geographical position information of an opposite end antenna by means of an auxiliary alignment system, auxiliary alignment of the two end antennas is completed, and basic communication is established; 2) the master station antenna is coarsely aligned in the elevation direction; 3) the slave station antenna is coarsely aligned in the elevation direction and finely aligned in the elevation direction; 4) the master station antenna is finely aligned in the elevation direction and finely aligned in the horizontal direction; and 5) the slave station antenna is finely aligned in the horizontal direction. In order to solve the contradiction between the scanning angle range of the narrow-beam antenna and the time length and improve the alignment accuracy, the application increases the continuous scanning process in the elevation direction and utilizes the parabolic distribution of signals in the independent one-dimensional space to obtain the optimal scattering angle of the antenna, and has the advantages of wide scanning range, short alignment time, high precision and the like, and can be applied to antenna alignment of a scattering communication system and other systems.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of communication technology, and particularly relates to a method for wide-range fast alignment of a narrow-beam antenna. BACKGROUND

[0002] The accuracy and alignment time of automatic alignment of the narrow-beam antenna are crucial for improving the communication quality and equipment use experience of a scattering communication system. The rough alignment process of automatic alignment of the scattering antenna uses an auxiliary alignment system to obtain the positioning and orientation information of both communication parties, calculates the initial azimuth angle of the earth of the communication opposite end, and completes the rough alignment process of the azimuth of the narrow-beam antenna. The rough alignment of the azimuth can only establish basic communication, and the quality of the scattering communication is far from the requirement, so it is necessary to find the best scattering area of communication through the fine alignment process of the antenna. The fine alignment process of the antenna is completed by finding the antenna attitude angle with the maximum received signal power in the space through signal scanning in the two-dimensional space of the azimuth and the elevation.

[0003] Since the erection position of the scattering antenna is uncertain, the scanning angle range of the antenna under the inclination of the antenna carrier limits the accuracy and alignment time of the automatic alignment of the antenna. Therefore, it is necessary to find a narrow-beam antenna alignment method which is less affected by the antenna carrier and can quickly complete the alignment. The present application reduces the influence of the antenna carrier on the automatic alignment process by increasing the continuous rough scanning process of the elevation and combining the fine alignment of the elevation, so as to achieve the goal of wide scanning range and short alignment time. SUMMARY

[0004] The technical problem to be solved by the present application is to avoid the deficiencies in the background art and provide a method for wide-range fast alignment of a narrow-beam antenna, which analyzes and processes the sampling data and improves the alignment process to obtain the best scattering area of the narrow-beam antenna.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0006] A method for wide-range fast alignment of a narrow-beam antenna, specifically comprising the following steps:

[0007] Step 1: Both communication parties use satellite positioning and orientation information to complete the auxiliary alignment of both communication parties; when the auxiliary alignment cannot establish basic communication, step 2 is performed, and when the auxiliary alignment establishes communication, step 3 is performed;

[0008] Step 2: The alignment opposite ends of both communication parties are a master station and a slave station, and the master station is the master. The master station single-point scanning period covers the total number of points scanned by the slave station. When the alignment opposite ends establish basic communication, step 3 is performed;

[0009] Step 3, keeping the slave station or master station antenna static and constant power transmitting signal, the other antenna scans the full range at a set scanning speed, continuously sampling the antenna attitude angle and the signal strength corresponding to the attitude angle during the scanning, respectively obtaining the relative optimal attitude angle information of the slave station antenna and the relative optimal attitude angle information of the master station antenna;

[0010] Step 4, keeping the slave station or master station antenna static and constant power transmitting signal, scanning 3 points on the basis of the relative optimal pitch angle of the other antenna, according to the parabolic distribution of the signal strength in the pitch one-dimensional space of the receiving antenna, respectively calculating the optimal scattering angle of the master station antenna and the slave station antenna in the pitch direction, completing the pitch fine alignment;

[0011] Step 5, keeping the slave station or master station antenna static and constant power transmitting signal, scanning 3 points on the basis of the relative optimal pitch angle of the other antenna, according to the parabolic distribution of the signal strength in the pitch one-dimensional space of the receiving antenna, respectively calculating the optimal scattering angle of the master station antenna and the slave station antenna in the pitch direction, completing the pitch fine alignment.

[0012] Further, in the auxiliary alignment process, the scanning speed of the antenna pitch, the pitch fine alignment step, the horizontal fine alignment step, the continuous scanning speed and the fine alignment step value are set according to the antenna beam angle size, the alignment time length and the error range to be compensated; the initial pitch angle is set according to the inclination degree of the antenna carrier.

[0013] The beneficial effects of the present application are:

[0014] The present application preliminarily determines the optimal scattering area by increasing the wide-range continuous scanning in the pitch, solves the contradiction that the scanning angle range of the antenna limits the accuracy and alignment time length of the antenna automatic alignment due to the uncertainty of the scattering antenna erection position and the inclination of the antenna carrier itself, that is, the alignment process can be quickly completed and the influence of the antenna carrier attitude on the accuracy and alignment time length of the alignment is reduced. And the data analysis and the distribution of the signal in the space are used for the fine alignment of the antenna, which increases the adaptability and reliability of the scattering communication system. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The alignment flowchart realized by the computer medium of the embodiment of the present application. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings and examples, but the embodiments described herein are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the present application.

[0017] A narrow-beam antenna wide-range fast alignment method, comprising the following steps:

[0018] Step 1: the communication parties complete the auxiliary alignment of the communication parties by using the satellite positioning orientation information; when the basic communication cannot be established after the auxiliary alignment, step 2 is performed, and when the communication is established after the auxiliary alignment, step 3 is performed;

[0019] Step 2: the alignment ends of the communication parties are a master station and a slave station, the master station is the main one, the master station single-point scanning period covers the total number of points of the slave station scanning, when the alignment ends establish the basic communication, step 3 is performed;

[0020] Step 3: keep the slave station or the master station antenna static and constant power signal transmission, the other antenna scans the whole range at a set scanning speed, continuously samples the antenna attitude angle and the signal strength corresponding to the attitude angle during the scanning, and the relative optimal attitude angle information of the slave station antenna and the relative optimal attitude angle information of the master station antenna are obtained respectively;

[0021] Step 4: keep the slave station or the master station antenna static and constant power signal transmission, scan 3 points on the basis of the relative optimal pitch angle of the other antenna, according to the parabolic distribution of the signal strength in the pitch one-dimensional space of the receiving antenna, the optimal scattering angles of the master station antenna and the slave station antenna in the pitch direction are calculated respectively, and the pitch fine alignment is completed;

[0022] Step 5: keep the slave station or the master station antenna static and constant power signal transmission, scan 3 points on the basis of the relative optimal pitch angle of the other antenna, according to the parabolic distribution of the signal strength in the azimuth one-dimensional space of the receiving antenna, the optimal scattering angles of the master station antenna and the slave station antenna in the azimuth direction are calculated respectively, and the azimuth fine alignment is completed.

[0023] Further, in the auxiliary alignment process, the antenna pitch continuous scanning speed, the pitch fine alignment step, the horizontal fine alignment step, the continuous scanning speed and the fine alignment step value are set according to the antenna beam angle size, the alignment time length and the error range to be compensated; the initial pitch angle is set according to the inclination degree of the antenna carrier.

[0024] The following is a more specific description:

[0025] (I) The antenna pitch continuous scanning speed, the pitch fine alignment step, the horizontal fine alignment step, the initial pitch angle, the continuous scanning speed and the fine alignment step value are set according to the antenna beam angle size, and the initial pitch angle is roughly set according to the inclination degree of the antenna carrier.

[0026] (ii) The two communicating parties use satellite positioning and orientation information to complete the auxiliary alignment process. After the process is completed, the two communicating parties can establish basic scatter communication through the scattering channel.

[0027] (III) Pitch Pre-scan:

[0028] This process is used when basic communication cannot be established after assisted alignment is completed.

[0029] Since the azimuth angle is basically accurate after the assisted alignment, the reason for the inability to establish communication is that the elevation angle deviation is too large. Therefore, the problem of initial elevation misalignment can be compensated for by adding a pre-scanning process in the elevation direction. Because basic communication between the scattering systems has not been established, this process is a blind alignment process between the two parties.

[0030] The system is divided into a master station and a slave station at both ends. A point-by-point scanning method is adopted based on a certain initial elevation angle. The scanning principle is: the master station is the primary focus, and the master station's single-point scanning cycle covers the total number of points scanned by the slave station. The goal is to establish basic communication between the two ends. Once basic communication is established, the process ends. The total number of scanned points can be set according to specific time requirements and antenna beam angle.

[0031] (iv) Antenna elevation coarse scan alignment:

[0032] This process is performed after the auxiliary alignment is completed. The slave antenna remains stationary and maintains a constant power transmission signal. The master antenna performs a full-range scan at a set scanning speed, continuously sampling the antenna attitude angle and the corresponding signal strength during the scan. The slave antenna repeats the master antenna's scanning process while the master antenna remains stationary and maintains a constant power transmission signal.

[0033] (V) Precise Antenna Elevation and Azimuth Alignment:

[0034] Antenna elevation fine alignment: Keeping the slave antenna stationary and transmitting signals at constant power, scan three points based on the relatively optimal elevation angle obtained after the master antenna's coarse elevation scan. Calculate the optimal scattering angle in the elevation direction based on the parabolic distribution of signal strength in the one-dimensional elevation space of the receiving antenna. Keeping the master antenna stationary and transmitting signals at constant power, the slave antenna repeats the above process to complete the elevation fine alignment.

[0035] Antenna azimuth fine alignment: Keeping the slave antenna stationary and transmitting signals at constant power, scan three points based on the relatively optimal azimuth angle obtained after the auxiliary alignment of the master antenna. Calculate the optimal scattering angle in azimuth by considering the parabolic distribution of signal strength in the one-dimensional azimuth space of the receiving antenna. Repeat the above process at the slave station to complete the azimuth fine alignment, keeping the master antenna stationary and transmitting signals at constant power.

[0036] In order to improve the reliability of the automatic alignment process, the process of step (1) is increased, and in order to compensate for the error caused by the continuous scanning sampling process and the scattering channel fading in step (3), an inputtable correction angle is set, which depends on the sampling error and the signal fading error.

[0037] In this embodiment, a computer readable storage medium has computer program instructions stored thereon, which are executed by a processor to implement the steps of the above method, and the specific process is referred to Figure 1 .

[0038] In this embodiment, the wide-range fast alignment method of the narrow-beam antenna is applied in antenna alignment.

[0039] It should be further explained that the initial pitch angle of the scattering system, the pitch fine alignment correction, and the fine alignment sampling duration can be set according to the actual system.

[0040] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by a computer program instructing related hardware, and the program can be stored in a computer readable storage medium. When the program is executed, it can include the processes of the above-mentioned embodiments of each method. The storage medium can 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.

[0041] The preferred embodiments of the present application are described in detail above, but the present application is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application. It is not necessary or possible to describe all embodiments here. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A method for wide range fast alignment of narrow beam antennas, characterized by, Specifically comprising the following steps: Step 1, the communication parties complete the auxiliary alignment of the communication parties by using satellite positioning orientation information; when the basic communication cannot be established after the auxiliary alignment, step 2 is performed, and when the auxiliary alignment and the communication are established, step 3 is performed; Step 2, the alignment of the communication parties is performed by the master station and the slave station, the master station is the main station, the master station single-point scanning period covers the total number of points scanned by the slave station, when the basic communication is established between the two ends of the alignment, step 3 is performed; Step 3, keeping the slave station or the master station antenna static and constant power signal transmission, the other antenna scans the full range at a set scanning speed, continuously sampling the antenna attitude angle and the signal strength corresponding to the attitude angle during the scanning, and the relative optimal attitude angle information of the slave station antenna and the relative optimal attitude angle information of the master station antenna are obtained respectively; Step 4, keeping the slave station or the master station antenna static and constant power signal transmission, scanning 3 points based on the relative optimal pitch angle of the other antenna, according to the parabolic distribution of the signal strength in the elevation one-dimensional space of the receiving antenna, the optimal scattering angle of the master station antenna and the slave station antenna in the elevation direction is calculated respectively, and the elevation fine alignment is completed; Step 5, keeping the slave station or the master station antenna static and constant power signal transmission, scanning 3 points based on the relative optimal pitch angle of the other antenna, according to the parabolic distribution of the signal strength in the azimuth one-dimensional space of the receiving antenna, the optimal scattering angle of the master station antenna and the slave station antenna in the azimuth direction is calculated respectively, and the azimuth fine alignment is completed.

2. The method of claim 1, wherein, In the auxiliary alignment process, the speed of the continuous scanning of the antenna pitch, the pitch fine alignment step, the horizontal fine alignment step, the speed of the continuous scanning and the fine alignment step value are set according to the antenna beam angle size, the alignment time length and the error range of compensation; the initial pitch angle is set according to the inclination degree of the antenna carrier.

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