CN116961720A - Satellite positioning method and system - Google Patents

Satellite positioning method and system Download PDF

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Publication number
CN116961720A
CN116961720A CN202211688499.0A CN202211688499A CN116961720A CN 116961720 A CN116961720 A CN 116961720A CN 202211688499 A CN202211688499 A CN 202211688499A CN 116961720 A CN116961720 A CN 116961720A
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China
Prior art keywords
areas
array antenna
adjustment
panel array
flat panel
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CN202211688499.0A
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Chinese (zh)
Inventor
袁云辉
陈鹏
余旭涛
张在琛
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Network Communication and Security Zijinshan Laboratory
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Network Communication and Security Zijinshan Laboratory
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Priority to CN202211688499.0A priority Critical patent/CN116961720A/en
Publication of CN116961720A publication Critical patent/CN116961720A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18513—Transmission in a satellite or space-based system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18519—Operations control, administration or maintenance
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

The invention discloses a satellite positioning method and a satellite positioning system. Wherein the method comprises the following steps: determining transmission signals corresponding to a plurality of areas of the flat panel array antenna after rough adjustment; acquiring receiving signals corresponding to a plurality of areas respectively, wherein the receiving signals corresponding to the plurality of areas are obtained by responding to the transmitting signals corresponding to the plurality of areas respectively by a target satellite; and under the condition that the signal difference of the received signals corresponding to any two areas is larger than a preset signal difference threshold value in the received signals corresponding to the areas, performing first adjustment on the flat panel array antenna until the signal difference corresponding to any two areas is smaller than or equal to the signal difference threshold value in the received signals corresponding to the areas, and obtaining a target adjustment state, so that the flat panel array antenna completes positioning processing of a target satellite. The invention solves the technical problems of low accuracy and low efficiency of satellite caused by adjacent satellite interference in the related technology.

Description

Satellite positioning method and system
Technical Field
The invention relates to the technical field of satellite communication, in particular to a satellite positioning method and a satellite positioning system.
Background
At present, due to the fact that satellites are densely deployed, partial satellites are close in working frequency bands and working modes, meanwhile, ground terminal antenna beams have a certain width, and in certain communication application scenes, the satellite time azimuth angle accuracy is low due to the fact that beacons are only used for carrying out satellite time azimuth angle accuracy, interference of adjacent satellites exists, and therefore communication quality is affected. In addition, in the satellite alignment operation, the traditional manual mechanical antenna alignment method has the problems of high satellite operation requirement, long alignment time, unsuccessful satellite alignment and the like, and particularly has low satellite alignment efficiency of ground equipment under the condition of adjacent satellite interference.
In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the invention provides a satellite positioning method and a satellite positioning system, which at least solve the technical problems of low accuracy and low efficiency of satellites caused by adjacent satellite interference in the related technology.
According to an aspect of an embodiment of the present invention, there is provided a satellite positioning method including: determining transmission signals respectively corresponding to a plurality of areas of the flat panel array antenna after rough adjustment processing, wherein the rough adjustment processing is positioning processing based on satellite coordinates corresponding to a target satellite, and the transmission signals respectively corresponding to the plurality of areas are different signals respectively transmitted to the target satellite by the plurality of areas of the flat panel array antenna after rough adjustment processing; acquiring receiving signals corresponding to the multiple areas respectively, wherein the receiving signals corresponding to the multiple areas are obtained by the target satellite responding to the transmitting signals corresponding to the multiple areas respectively; and under the condition that the signal difference of the received signals corresponding to any two areas is larger than a preset signal difference threshold value in the received signals corresponding to the areas respectively, performing first adjustment on the flat panel array antenna until the signal difference corresponding to any two areas is smaller than or equal to the signal difference threshold value in the received signals corresponding to the areas respectively, and obtaining a target adjustment state, so that the flat panel array antenna completes positioning processing on the target satellite.
According to another aspect of an embodiment of the present invention, there is provided a satellite positioning system including: the controller is used for determining transmission signals respectively corresponding to a plurality of areas of the flat panel array antenna after rough adjustment processing, wherein the rough adjustment processing is positioning processing based on satellite coordinates corresponding to a target satellite, and the transmission signals respectively corresponding to the plurality of areas are different signals respectively transmitted to the target satellite by the plurality of areas of the flat panel array antenna after rough adjustment processing; the radio frequency unit is connected with the controller and used for acquiring received signals corresponding to the multiple areas respectively, wherein the received signals corresponding to the multiple areas are obtained by the target satellite responding to the transmitted signals corresponding to the multiple areas respectively; and the servo motor is connected with the controller and is used for carrying out first adjustment on the flat panel array antenna under the condition that the signal difference of the received signals corresponding to any two areas is larger than a preset signal difference threshold value in the received signals corresponding to the areas respectively until the signal difference corresponding to any two areas is smaller than or equal to the signal difference threshold value in the received signals corresponding to the areas respectively, so as to obtain a target adjustment state, and the flat panel array antenna is enabled to finish positioning processing on the target satellite.
In the embodiment of the invention, the transmission signals respectively corresponding to the multiple areas of the flat panel array antenna after the rough adjustment processing are determined, wherein the rough adjustment processing is positioning processing based on satellite coordinates corresponding to a target satellite, and the transmission signals respectively corresponding to the multiple areas are different signals respectively transmitted to the target satellite by the multiple areas of the flat panel array antenna after the rough adjustment processing; acquiring receiving signals corresponding to the multiple areas respectively, wherein the receiving signals corresponding to the multiple areas are obtained by the target satellite responding to the transmitting signals corresponding to the multiple areas respectively; and under the condition that the signal difference of the received signals corresponding to any two areas is larger than a preset signal difference threshold value in the received signals corresponding to the areas respectively, performing first adjustment on the flat panel array antenna until the signal difference corresponding to any two areas is smaller than or equal to the signal difference threshold value in the received signals corresponding to the areas respectively, and obtaining a target adjustment state, so that the flat panel array antenna completes positioning processing on the target satellite. The multi-channel multi-region flat-panel array antenna is utilized, the purpose of improving the accuracy of the beacons to the satellites is achieved, the accuracy of the beacons to the satellites is improved, the technical effect of improving the efficiency of the satellites is improved, and further the technical problems of low accuracy of the satellites and low efficiency of the satellites caused by adjacent satellite interference in the related technology are solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a flow chart of an alternative satellite positioning method provided in accordance with an embodiment of the present application;
fig. 2 is a schematic view of a ground mobile terminal according to an alternative satellite positioning method according to an embodiment of the present application;
FIG. 3 is a flow chart of an alternative satellite positioning method according to an embodiment of the present application;
FIG. 4 is a schematic illustration of an alternative satellite positioning method according to an embodiment of the present application;
FIG. 5 is a communication diagram of an alternative satellite positioning method according to an embodiment of the present application;
FIG. 6 is a schematic diagram of an alternative satellite positioning device provided in accordance with an embodiment of the present application;
fig. 7 is a schematic diagram of an alternative satellite positioning system according to an embodiment of the application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For convenience of description, the following will describe some terms or terminology involved in the embodiments of the present application:
a flat array antenna refers to an antenna system in which antennas propagating in only one specific direction are arranged by a plurality of identical single antennas in a regular manner.
GPS (Global positioning System), a positioning system of high-precision radio navigation system based on artificial earth satellites, can provide accurate geographic location anywhere in the world as well as near-earth space.
At present, with the rapid development of satellite technology, satellite orbit resources are occupied in a large amount, and taking geosynchronous orbit satellites as an example, the orbit resources of the geosynchronous orbit satellites are very precious. Due to the advantages of wide satellite-to-ground communication coverage area, no need of real-time tracking, continuous 24-hour communication and the like of the satellite on the geosynchronous orbit, the method has wide application in the fields of real-time communication, television broadcasting, weather prediction, national defense and the like. Because of the scarcity of synchronous orbit resources, the deployment longitude interval of synchronous orbit satellites is reduced (the minimum of 0.1 degree), part of satellite working frequency bands and working modes are close, meanwhile, the ground terminal antenna beam has a certain width, and in certain communication application scenes, the interference of adjacent satellites can exist when the accuracy of the azimuth angle of the satellite is not high by using beacons, so that the communication quality is affected. In addition, in the star alignment operation, the traditional manual mechanical antenna alignment method has the disadvantages of higher requirements on the star operation, long alignment time, unsuccessful star alignment and the like, so that the technical problem that how to finish high-precision automatic satellite alignment under the condition of adjacent star interference so as to ensure the communication quality is needed to be solved at present is urgent.
In view of the foregoing, it will be appreciated that embodiments of the present invention provide a method embodiment for satellite positioning, where the steps illustrated in the flowcharts of the figures may be performed in a computer system, such as a set of computer executable instructions, and where a logical sequence is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in a different order than that illustrated herein.
Fig. 1 is a flowchart of a satellite positioning method according to an embodiment of the present invention, as shown in fig. 1, the method includes the steps of:
step S102, determining transmission signals corresponding to a plurality of areas of the flat panel array antenna after the rough adjustment process, wherein the rough adjustment process is a positioning process based on satellite coordinates corresponding to a target satellite, and the transmission signals corresponding to the plurality of areas are different signals transmitted to the target satellite by the plurality of areas of the flat panel array antenna after the rough adjustment process.
It can be understood that the flat-panel array antenna after the rough adjustment process is partitioned, and the transmission signals corresponding to the multiple areas are determined, and each of the multiple areas transmits different signals to the target satellite. It should be noted that, since the accuracy of the rough adjustment process based on the satellite coordinates corresponding to the target satellite is limited, further positioning process is required for the preliminary satellite alignment process. The method adopts the regional coordinates and the satellite coordinates to determine the angle adjustment information, is a simple means, can quickly help the flat array antenna to perform preliminary satellite alignment during coarse adjustment, and is used for determining the approximate azimuth only when the target satellite is not aligned during coarse adjustment.
It should be noted that, the multiple areas of the flat panel array antenna correspond to different signal transmission channels, for example: a radio frequency channel.
In an alternative embodiment, the determining the transmission signals corresponding to the multiple areas of the flat panel array antenna after the coarse adjustment processing includes: determining the spread spectrum code sequences corresponding to the multiple areas respectively, wherein the spread spectrum code sequences corresponding to the multiple areas are different; based on a preset calibration signal, a spread spectrum code sequence corresponding to each of the plurality of areas is adopted to generate a transmission signal corresponding to each of the plurality of areas of the flat panel array antenna after the rough adjustment processing.
It will be appreciated that in order to fine-tune a star using multiple partitions of a flat array antenna, it is necessary to determine spreading code sequences corresponding to multiple regions respectively, where the spreading code sequences corresponding to the multiple regions respectively are different, and different spreading code sequences are used to generate different transmission signals. Based on a preset calibration signal, a spread spectrum code sequence corresponding to each of a plurality of areas is adopted to generate a transmission signal corresponding to each of the plurality of areas of the flat panel array antenna after rough adjustment processing. By the processing, spread spectrum communication technology is introduced into satellite-to-satellite operation, and the spread spectrum communication has the excellent characteristics of wide frequency band, strong anti-interference and the like, so that normal communication is not influenced in the satellite-to-satellite process, the satellite-to-satellite efficiency is improved, and the communication efficiency is guaranteed.
Optionally, the spreading code sequences respectively corresponding to the plurality of regions have the same sequence length. The spread code sequences with the same sequence length have the same spread gain and the same operation complexity, and in order to compare the received signals corresponding to the multiple areas under the condition of control variable, different spread code sequences with the same sequence length are needed.
Step S104, receiving signals corresponding to the plurality of areas respectively are obtained, wherein the receiving signals corresponding to the plurality of areas respectively are obtained by the target satellite responding to the sending signals corresponding to the plurality of areas respectively.
It will be appreciated that the target satellite may obtain the reception signals corresponding to the plurality of regions in response to the transmission signals corresponding to the plurality of regions, respectively.
And step S106, under the condition that the signal difference of the received signals corresponding to the plurality of areas is larger than a preset signal difference threshold value, the flat panel array antenna is subjected to first adjustment until the signal difference corresponding to the plurality of areas is smaller than or equal to the signal difference threshold value in the received signals corresponding to the plurality of areas, and a target adjustment state is obtained, so that the flat panel array antenna completes positioning processing of the target satellite.
It can be understood that the received signals corresponding to the multiple areas respectively can be used for determining the state of the flat panel array antenna, and when the signal difference of the received signals corresponding to any two areas respectively is greater than a preset signal difference threshold value in the received signals corresponding to the multiple areas respectively, the flat panel array antenna is regarded as not being aligned with the target satellite, and the flat panel array antenna is subjected to first adjustment until the signal difference corresponding to any two areas respectively is less than or equal to the signal difference threshold value in the received signals corresponding to the multiple areas respectively, and the alignment is regarded as completed after the adjustment is performed, so that the target adjustment state is obtained. Through the processing, the star alignment is performed based on the signal difference of different areas, the signal transmission, the signal reception and the signal comparison are rapid, and the alignment fine adjustment is performed automatically, so that the accuracy of the star alignment and the alignment efficiency are improved on the basis of rough adjustment.
In an alternative embodiment, the signal difference includes: signal peak difference, the signal difference threshold includes: a peak difference threshold; and performing first adjustment on the planar array antenna when the signal difference between the received signals corresponding to any two areas is greater than a preset signal difference threshold in the received signals corresponding to the areas respectively, until the signal difference between any two areas is less than or equal to the signal difference threshold in the received signals corresponding to the areas respectively, to obtain a target adjustment state, so that the planar array antenna completes positioning processing on the target satellite, where the first adjustment includes: when the peak difference of the received signals corresponding to any two areas is larger than the peak difference threshold, determining a target area with the strongest received signal peak value in the areas; and controlling the planar array antenna to adjust the azimuth of the target area until the peak value difference corresponding to any two areas is smaller than or equal to the peak value difference threshold value in the received signals corresponding to the areas respectively, so as to obtain the target adjustment state.
It will be appreciated that there are a number of ways in which the signal difference may be described, where the signal difference comprises a signal peak difference, and the signal difference threshold comprises: in the case of the peak difference threshold, when the peak difference of the received signals corresponding to any two areas is greater than the peak difference threshold, the received signals corresponding to the areas are considered to be different in signal peak value, which is caused by that the flat panel array antenna is not aligned with the target satellite, the received signals of each of the areas should be the same peak intensity in the case of alignment, and the positioning of the area with strong received signal peak intensity on the target satellite is more accurate than the positioning of the area with weak received signal peak intensity in the case of misalignment, so that the target area with strongest received signal peak value in the areas is determined. And controlling the planar array antenna to adjust the azimuth of the target area until the peak difference corresponding to any two areas is smaller than or equal to the peak difference threshold in the received signals corresponding to the areas respectively, and obtaining the target adjusting state after the adjustment.
On the basis of coarse adjustment, the comparison between the signal peaks is adopted to conduct adjustment guidance to serve as fine adjustment, and the coarse adjustment and the fine adjustment are combined, so that the demand on computing hardware is reduced under the condition of reducing occupied computing resources, the adjustment precision is guaranteed through fine adjustment, and the star alignment efficiency is improved.
For ease of understanding, specific examples are: the coarse-tuned flat panel array antenna is divided into a left partition and a right partition. In the peak values of the received signals corresponding to the left and right partitions, respectively, two received signals: and under the condition that the signal peak difference is larger than the peak difference threshold, the coarse adjustment is regarded as not completing alignment directly, and the target area with the largest received signal peak value in the left partition and the right partition is determined. If the target area is a left partition, that is, the maximum received signal peak value corresponding to the left partition is regarded as the best signal intensity, the distribution azimuth of the left partition can guide the flat panel array antenna to adjust, the distribution azimuth of the left partition is determined to be the left side, and the corresponding adjustment direction is left adjustment. And obtaining a target adjustment state until the peak value difference corresponding to any two areas is smaller than or equal to the peak value difference threshold value in the received signals corresponding to the areas respectively, so that the flat panel array antenna finishes positioning processing of the target satellite.
In an alternative embodiment, the signal difference includes: peak position differences, the signal difference threshold includes: a position difference threshold; in the case where the peak difference of the received signals corresponding to any two regions is greater than the peak difference threshold, before determining the target region in which the received signal peak is strongest among the plurality of regions, the method further includes: and judging whether the peak value difference of the received signals corresponding to any two areas is larger than the peak value difference threshold value or not when the peak value position difference of the received signals corresponding to any two areas is smaller than or equal to the position difference threshold value.
It will be appreciated that there are a number of ways in which the signal differences may be described, including: peak position differences, the signal difference threshold includes: under the condition of the position difference threshold, the peak position difference can describe the distance difference between a plurality of areas and a target satellite, because the propagation speed of electromagnetic waves is fixed (namely, the speed of light) and the peak value of a received signal close to the target satellite appears earlier, in other words, the distance between the plurality of areas and the target satellite respectively can be represented by the peak position, and the peak position difference of the received signal corresponding to any two areas is smaller than or equal to the position difference threshold, and is regarded as the same distance between each area in the plurality of areas and the target satellite, and the satellite positioning judgment can be assisted. And then, considering the peak difference, and judging whether the peak difference of the received signals corresponding to any two areas is larger than a peak difference threshold. Through the processing, the peak value position is introduced into star fine adjustment, so that the star accuracy is further improved.
It should be noted that, the peak position is understood to be the concept that the round trip distance from the panel of the flat panel array antenna to the target satellite divided by the speed of light is time, and the difference in azimuth angle affects the distance from the target satellite, specifically, in the case of misalignment, the distances from different partitions to the target satellite are different, that is, the peak positions of the received signals of different partitions are different. Therefore, the peak position can be used as a judgment basis for fine adjustment.
In an alternative embodiment, the method further comprises: and when the peak position difference of the received signals corresponding to any two areas is larger than the position difference threshold, performing new rough adjustment processing on the flat panel array antenna to obtain the flat panel array antenna after the new rough adjustment processing.
It can be understood that, when the peak position difference of the received signals corresponding to any two areas is greater than the position difference threshold, the distances between the two areas and the target satellite are considered to be different, and a new coarse adjustment process needs to be performed on the flat panel array antenna, so as to obtain a new flat panel array antenna after the coarse adjustment process. It should be noted that, after there may be one coarse adjustment for positioning the target satellite, a plurality of first adjustments are performed based on the received signal. Since the relative position of the satellite operation and the earth may vary, it is determined whether the coarse tuning process needs to be re-performed or not through the peak position difference.
In an alternative embodiment, the target satellite communicates with the flat panel array antenna using linear polarization; and adjusting the planar array antenna until the signal difference between the received signals corresponding to the plurality of areas is less than or equal to the signal difference threshold value, to obtain a target adjustment state, where the signal difference between the received signals corresponding to any two areas is greater than a preset signal difference threshold value, where the signal difference between the received signals corresponding to the plurality of areas is less than or equal to the signal difference threshold value, where the target adjustment state includes: performing second adjustment on the flat panel array antenna until the signal difference of the received signals corresponding to the multiple areas is smaller than or equal to the signal difference threshold value, so as to obtain multiple adjustment states corresponding to the flat panel array antenna, wherein the second adjustment adjusts the current polarization angle corresponding to the flat panel array antenna; determining a region from the plurality of regions; determining test signals respectively transmitted by the one area in the plurality of adjustment states, wherein the test signals respectively transmitted by the plurality of adjustment states are the same signals respectively transmitted by the one area to the target satellite in the plurality of adjustment states; acquiring feedback signals respectively received by the one area in a plurality of adjustment states, wherein the feedback signals respectively received by the plurality of adjustment states are obtained by the target satellite responding to the test signals respectively corresponding to the one area in the plurality of adjustment states; determining a first adjustment state in which the feedback signal is strongest in the plurality of adjustment states for the one region; the first adjustment state is set as the target adjustment state.
It can be understood that, when the target satellite communicates with the flat panel array antenna in a linear polarization manner, it is further required to perform adjustment of a polarization angle until signal differences of received signals corresponding to the multiple areas are less than or equal to a signal difference threshold, and perform second adjustment on the flat panel array antenna to obtain multiple adjustment states corresponding to the flat panel array antenna, where the second adjustment adjusts a current polarization angle corresponding to the flat panel array antenna. And determining one area in the plurality of areas, and finishing adjustment to ensure that the received signal of each area in the plurality of areas is the same as the received signal of each area in the plurality of areas because the signal difference of the received signals respectively corresponding to the plurality of areas is smaller than or equal to a signal difference threshold value, and optionally carrying out subsequent polarization angle adjustment in one area in the plurality of areas. And determining test signals respectively transmitted by one area in a plurality of adjustment states, wherein the test signals respectively transmitted by the plurality of adjustment states are the same signals respectively transmitted by one area to the target satellite in the plurality of adjustment states. And acquiring feedback signals respectively received by one area in a plurality of adjustment states, wherein the feedback signals respectively received by the plurality of adjustment states are obtained by responding to test signals respectively corresponding to the one area in the plurality of adjustment states by a target satellite, and the feedback signals respectively corresponding to the plurality of areas can be used for describing the influence of the plurality of adjustment states on the flat panel array antenna. And determining a first regulation state with the strongest feedback signal in a plurality of regulation states of one area, regarding the first regulation state with the strongest feedback signal as the best regulation state of the polarization angle of the flat panel array antenna, and taking the first regulation state as a target regulation state. Under the condition that the target satellite adopts linear polarization, different polarization angles have close influence on signal intensity, and through the processing, the regulation state of the polarization angles is favorable for the strongest received signal of the flat panel array antenna, and is favorable for improving communication quality.
The second adjustment is performed in the plane of the panel of the flat panel array antenna, i.e., the direction angle and pitch angle of the flat panel array antenna are not changed.
In an alternative embodiment, before determining the transmission signals corresponding to the multiple areas of the flat panel array antenna after the coarse adjustment processing, the method further includes: acquiring region coordinates corresponding to the flat panel array antenna and satellite coordinates corresponding to the target satellite; determining an adjustment azimuth angle for adjusting the flat panel array antenna to a target direction based on the regional coordinates and the satellite coordinates, and adjusting a pitch angle; and carrying out the coarse adjustment on the flat panel array antenna by adopting the azimuth angle adjustment and the pitch angle adjustment to obtain the flat panel array antenna after the coarse adjustment.
It can be understood that the regional coordinates corresponding to the flat panel array antenna and the satellite coordinates corresponding to the target satellite are obtained. The coordinates between the ground satellites are directly adopted for calculation, so that preliminary positioning adjustment is facilitated. And determining an adjustment azimuth angle for adjusting the flat panel array antenna to the target direction based on the regional coordinates and the satellite coordinates, and adjusting the pitch angle. And adopting the azimuth angle adjustment and the pitch angle adjustment to perform rough adjustment treatment on the flat array antenna, and obtaining the flat array antenna after rough adjustment treatment. The target satellite is not aligned during rough adjustment, and is used only to determine the approximate azimuth.
In an alternative embodiment, the target satellite communicates with the flat panel array antenna using linear polarization; the adjusting azimuth angle and the adjusting pitch angle by the above method, the rough adjusting process is performed on the flat panel array antenna, including: determining an adjusting polarization angle corresponding to the flat panel array antenna based on the polarization direction of the target satellite; and performing the coarse adjustment process on the planar array antenna by using the azimuth adjustment and the pitch adjustment and the polarization adjustment.
It will be appreciated that in the case where the target satellite communicates with the flat panel array antenna using linear polarization, the state of the polarization angle also affects the communication quality, and therefore, adjustment of the polarization angle of the flat panel array antenna is required. And determining an adjusted polarization angle corresponding to the flat panel array antenna based on the polarization direction of the target satellite. And adjusting azimuth angle, pitch angle and polarization angle to perform rough adjustment treatment on the flat panel array antenna. By the above processing, degradation of communication quality due to insufficient polarization direction can be avoided.
Alternatively, the polarization direction may be various, for example: under on-line polarization, there are two directions of horizontal polarization and vertical polarization.
In an alternative embodiment, the performing the coarse adjustment on the flat panel array antenna by using the azimuth adjustment and the pitch adjustment to obtain the flat panel array antenna after the coarse adjustment includes: adopting the azimuth angle adjustment, carrying out azimuth angle adjustment on the flat panel array antenna to obtain a feedback azimuth angle corresponding to the flat panel array antenna; under the condition that the error between the adjustment azimuth angle and the feedback azimuth angle is smaller than a preset first threshold value, adopting the adjustment pitch angle to adjust the pitch angle of the flat-panel array antenna, and obtaining a feedback pitch angle corresponding to the flat-panel array antenna; and under the condition that the error between the adjustment pitch angle and the feedback pitch angle is smaller than a preset second threshold value, obtaining the flat array antenna after the rough adjustment processing.
It will be appreciated that in performing coarse adjustments, subsequent adjustments may be meaningless due to the fact that the adjustment instructions may not be fully executed. Therefore, the adjusting azimuth angle is adopted to adjust the flat-panel array antenna, and the feedback azimuth angle corresponding to the flat-panel array antenna is obtained. And under the condition that the error between the adjusting azimuth angle and the feedback azimuth angle is smaller than a preset first threshold value, the adjusting azimuth angle is adjusted in place according to the adjusting azimuth angle, the adjusting pitch angle is continuously adopted, the flat panel array antenna is adjusted, and the feedback pitch angle corresponding to the flat panel array antenna is obtained. And under the condition that the error between the adjustment pitch angle and the feedback pitch angle is smaller than a preset second threshold value, the adjustment is considered to be in place according to the adjustment pitch angle, and the flat array antenna after rough adjustment is obtained. Through the processing, the problem that the adjustment of the flat panel array antenna and the instruction of the angle adjustment information have deviation due to faults or larger errors of equipment for executing actual operation is prevented, the feedback azimuth angle and the feedback pitch angle are adopted for checking, the flat panel array antenna is determined to be successfully adjusted in place, and further the star efficiency is improved and the star process is guaranteed.
Optionally, the flat panel array antenna is adjusted by using a driving servo motor, and the adjustment state of the flat panel array antenna is fed back by using an attitude sensor.
Through the steps S102 to S106, the purpose of improving the accuracy of the beacon to the star by utilizing the multi-channel multi-region flat array antenna can be achieved, the technical effect of improving the accuracy of the star and the efficiency of the star is achieved, and further the technical problems of low accuracy of the star and low efficiency of the star caused by adjacent star interference in the related technology are solved.
Based on the foregoing embodiments and optional embodiments, an optional implementation manner is provided in the present invention, and fig. 2 is a schematic diagram of a ground mobile terminal according to an optional satellite positioning method provided in an embodiment of the present invention, as shown in fig. 2, a ground mobile terminal is used to perform satellite alignment operation on a satellite, where the ground mobile terminal at least includes: the device comprises a controller, a flat panel array antenna, a 9-axis attitude sensor, a GPS positioning unit, a servo system, a radio frequency unit and a baseband processing module. And (3) carrying out satellite alignment processing based on the ground movable terminal, and controlling each functional module to carry out processing by adopting a controller. The method mainly comprises the following steps:
The planar array antenna in the ground mobile terminal is divided into two array surfaces with the same area A and the same area B, the area A and the area B are respectively positioned at the left side and the right side, and the area A and the area B are respectively butted with two radio frequency receiving and transmitting channels.
The ground movable terminal firstly acquires the current GPS geographical position information of the ground movable terminal, namely the longitude and latitude of the coordinates of the ground movable terminal, and calculates the azimuth angle, the pitching angle and the polarization angle of the antenna panel to be adjusted according to the target satellite beacons to be aligned, namely the longitude and latitude of the coordinates of the satellites. In the case of the satellite adopting linear polarization as the polarization mode of the flat panel array antenna, the polarization mode is divided into two polarization directions, horizontal polarization or vertical polarization. The first polarization angle is determined based on the polarization mode of the flat panel array antenna and the polarization direction.
The servo motor in the ground movable terminal is used for executing adjustment operation, and the 9-axis attitude sensor is used for feeding back whether the adjustment of the position state is correctly completed or not and is used for guaranteeing the adjustment precision.
The method comprises the steps of firstly coarsely adjusting an initial azimuth angle of the flat panel array antenna to a calculated adjustment azimuth angle, then adjusting an initial pitching angle of the flat panel array antenna to a calculated adjustment pitch angle, and finally coarsely adjusting a polarization angle of the flat panel array antenna to a calculated first polarization angle. Adjacent satellite interference exists in the space where the flat-panel array antenna is located, and the flat-panel array antenna is initially adjusted in direction by a coarse adjustment mode, so that the flat-panel array antenna faces to a target satellite.
The baseband processing module of the ground mobile terminal is used for transmitting broadband spread spectrum signals of different spread spectrum codes to an A area and a B area in the flat panel array antenna, wherein the broadband spread spectrum signals of the different spread spectrum codes are respectively used as transmitting signals corresponding to the A area and the B area in the flat panel array antenna. The transmit signal from the flat panel array antenna is transmitted to a target satellite, which responds to the transmit signal.
And the baseband processing module performs despreading processing on the received signals received by the A area and the B area respectively to obtain the respective correlation peak positions and sizes of the A area and the B area, and the difference values of the correlation peak values and the positions represent azimuth angle deviation values. When the peak positions of the correlation peaks corresponding to the region a and the region B in the flat panel array antenna are the same and the peak sizes are the same, the alignment target satellite state is regarded.
And under the condition of misalignment, continuously fine-adjusting the azimuth angle by a servo motor until the correlation peak positions of the area A and the area B in the flat panel array antenna are the same.
Under the condition that the adopted polarization mode of the satellite to the flat panel array antenna is linear polarization, the flat panel array antenna is driven by a servo motor to rotate in the plane where the panel of the flat panel array antenna is located, the polarization angle adjusting range is 90 degrees, and received signals respectively corresponding to different second polarization angles in rotation and the magnitude of correlation peaks of the received signals are recorded in the polarization angle adjusting range. And determining the maximum peak angle in the polarization angle adjusting range, and adjusting the flat panel array antenna to be regarded as the alignment target satellite state.
Fig. 3 is a flow chart of an alternative satellite positioning method according to an embodiment of the present invention, and as shown in fig. 3, in the case that the satellite to be aligned is a geosynchronous orbit satellite, the method specifically includes the following steps:
step S1, automatically acquiring current GPS position information after the ground mobile terminal is electrified, marking the current coordinate longitude as N, marking the coordinate latitude as L, selecting a geosynchronous orbit satellite which needs to be connected with the ground mobile terminal, marking the longitude of an acquisition target satellite as S, and only needing to determine an accuracy interval when the latitude on the geosynchronous orbit satellite is the same.
And S2, calculating the relative position of the target satellite and the ground movable terminal according to the longitude and latitude coordinate information and N, L, S obtained in the step S1, and obtaining the angle adjustment information of the ground movable terminal, which is required to be roughly adjusted by the flat panel array antenna. The angle adjustment information includes: the adjustment azimuth is denoted as a, the adjustment pitch is denoted as E, and the first polarization is denoted as θ.
And S3, the ground movable terminal controller firstly drives the servo motor to adjust the azimuth angle of the flat panel array antenna until the feedback azimuth angle returned by the 9-axis attitude sensor is close to the adjustment azimuth angle A, and the adjustment operation is considered to be completed correctly under the condition that the error between the feedback azimuth angle and the adjustment azimuth angle is smaller than a preset first threshold value. And similarly, driving the servo motor to adjust the pitch angle of the flat-panel array antenna until the feedback pitch angle returned by the 9-axis attitude sensor approaches to the adjustment pitch angle E, and considering that the adjustment operation is correctly completed under the condition that the error between the adjustment pitch angle and the feedback pitch angle is smaller than a preset second threshold value. The satellite adopts horizontal polarization in a linear polarization mode to the flat panel array antenna, and drives the servo motor to enable the flat panel array antenna to be adjusted in the plane where the panel of the flat panel array antenna is located, and the first polarization angle is recorded as theta.
In step S4, fig. 4 is a schematic diagram of an alternative satellite positioning method according to an embodiment of the present invention, as shown in fig. 4, a flat panel array antenna radiates signals with a certain beam width, where beams are directed to multiple satellites. The baseband processing module of the ground mobile terminal adopts a spread spectrum sequence with the same sequence length as SN and a spread spectrum sequence as KN to generate self-loop spread spectrum signal data streams which are respectively sent into an A-area radio frequency channel and a B-area radio frequency channel, modulated and converted by the radio frequency channels and radiated by a panel of the panel array antenna. And after receiving the spread spectrum signal sent by the ground mobile terminal, the satellite transponder sends the spread spectrum signal after frequency conversion back to the ground mobile terminal.
The A area and the B area respectively correspond to the radio frequency channels, digital streams after down-converting and sampling the signals received by the A area and the B area respectively are sent to a baseband processing module, and the baseband processing module respectively carries out correlation operation on the A area and the B area received signals and the respective spread spectrum sequences to obtain a correlation peak value of the A area, wherein the correlation peak value is recorded as Acorr peak The peak position is recorded as Acorr pointer The correlation peak value of the B region is recorded as Bcor peak Peak position Is denoted as Bcor pointer . The baseband processing module sends the relevant peak value size and peak value position information to the controller.
Step S5, the controller of the ground movable terminal judges whether the correlation peak values corresponding to the A area and the B area are the same, namely Acorr peak With Bcor peak Whether the peak positions of the A area and the B area are the same, namely Acorr pointer With Bcor pointer Whether or not the same. Fig. 5 is a schematic communication diagram of an alternative satellite positioning method according to an embodiment of the present invention, as shown in fig. 5, path lengths of signals received by an on-board transponder for a zone a and a zone B are different, so that peak positions of different zones are also different in the case of misalignment of satellites. If Acorr peak With Bcor peak If the two types of the planar array antenna are different, the panel of the planar array antenna is not completely opposite to the satellite, the controller drives the servo motor to finely adjust the azimuth angle to the larger side of the peak value by a minimum stepping value, and the step S4 is repeated until Acorr peak With Bcor peak Identical, acorr pointer With Bcor pointer The same applies.
Step S6, the target satellite uses horizontal polarization to the antenna, drives the flat panel array antenna to rotate in the plane where the panel of the flat panel array antenna is located through the servo motor, the polarization angle adjusting range is 90 degrees, and the receiving signals respectively corresponding to different second polarization angles of rotation and the magnitude of the correlation peak value of the receiving signals are recorded in the polarization angle adjusting range. And determining the maximum peak angle in the polarization angle adjusting range, and adjusting the flat panel array antenna to be regarded as the alignment target satellite state.
At least the following effects are achieved by the above alternative embodiments: 1. aiming at the problem of adjacent satellite interference in satellite-ground communication of the geosynchronous orbit satellite, the invention uses a double-channel double-area flat-panel array antenna technology, and a synchronous self-loop mode is carried out on the flat-panel array antenna and the satellite to accurately adjust the position state corresponding to the flat-panel array antenna when the satellite is aligned, thereby overcoming the problem of low azimuth angle accuracy in the passive alignment process of the satellite beacon, simultaneously adopting a controller to carry out automatic processing and adjustment, having high automation degree on the satellite and simplifying the alignment process. 2. For the transponder characteristic of the in-orbit synchronous satellite, a spread spectrum communication mode is adopted, and the real-time service of the transponder is not influenced in the satellite process and the satellite communication is not disturbed due to the fact that the frequency bandwidth of the spread spectrum communication is achieved. 3. The two same radio frequency receiving and transmitting channels of the ground movable terminal can be flexibly configured after the satellite is completed, and a larger communication bandwidth is provided, so that hardware system resources are efficiently utilized.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in an order other than that illustrated herein.
The embodiment also provides a satellite positioning device, which is used for implementing the above embodiment and the preferred implementation manner, and is not described in detail. As used below, the terms "module," "apparatus" may be a combination of software and/or hardware that implements a predetermined function. While the means described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.
According to an embodiment of the present invention, there is further provided an embodiment of an apparatus for implementing a satellite positioning method, and fig. 6 is a schematic diagram of an alternative satellite positioning apparatus according to an embodiment of the present invention, as shown in fig. 6, where the satellite positioning apparatus includes: the device is described below as a determining module 602, an obtaining module 604, and an adjusting module 606.
A determining module 602, configured to determine transmission signals corresponding to a plurality of areas of the flat panel array antenna after the coarse adjustment, where the coarse adjustment is a positioning process based on satellite coordinates corresponding to a target satellite, and the transmission signals corresponding to the plurality of areas are different signals transmitted to the target satellite by the plurality of areas of the flat panel array antenna after the coarse adjustment;
An obtaining module 604, coupled to the determining module 602, configured to obtain received signals corresponding to the multiple areas, where the received signals corresponding to the multiple areas are obtained by the target satellite responding to the transmitted signals corresponding to the multiple areas;
and the adjusting module 606 is connected to the acquiring module 604, and is configured to perform a first adjustment on the planar array antenna when a signal difference between the received signals corresponding to any two areas in the received signals corresponding to the plurality of areas is greater than a preset signal difference threshold, until the signal difference between the received signals corresponding to any two areas in the received signals corresponding to the plurality of areas is less than or equal to the signal difference threshold, so as to obtain a target adjustment state, so that the planar array antenna completes positioning processing on the target satellite.
In the satellite positioning device provided by the embodiment of the invention, the determining module 602 is configured to determine the transmission signals corresponding to the multiple areas of the flat panel array antenna after the coarse adjustment processing, where the coarse adjustment processing is positioning processing based on satellite coordinates corresponding to a target satellite, and the transmission signals corresponding to the multiple areas are different signals transmitted to the target satellite by the multiple areas of the flat panel array antenna after the coarse adjustment processing; an obtaining module 604, coupled to the determining module 602, configured to obtain received signals corresponding to the multiple areas, where the received signals corresponding to the multiple areas are obtained by the target satellite responding to the transmitted signals corresponding to the multiple areas; and the adjusting module 606 is connected to the acquiring module 604, and is configured to perform a first adjustment on the planar array antenna when a signal difference between the received signals corresponding to any two areas in the received signals corresponding to the plurality of areas is greater than a preset signal difference threshold, until the signal difference between the received signals corresponding to any two areas in the received signals corresponding to the plurality of areas is less than or equal to the signal difference threshold, so as to obtain a target adjustment state, so that the planar array antenna completes positioning processing on the target satellite. The multi-channel multi-region flat-panel array antenna is utilized, the purpose of improving the accuracy of the beacons to the satellites is achieved, the accuracy of the beacons to the satellites is improved, the technical effect of improving the efficiency of the satellites is improved, and further the technical problems of low accuracy of the satellites and low efficiency of the satellites caused by adjacent satellite interference in the related technology are solved.
It should be noted that each of the above modules may be implemented by software or hardware, for example, in the latter case, it may be implemented by: the above modules may be located in the same processor; alternatively, the various modules described above may be located in different processors in any combination.
It should be noted that, the determining module 602, the obtaining module 604, and the adjusting module 606 correspond to the steps S102 to S106 in the embodiment, and the modules are the same as the examples and the application scenarios implemented by the corresponding steps, but are not limited to the disclosure of the embodiment. It should be noted that the above modules may be run in a computer terminal as part of the apparatus.
It should be noted that, the optional or preferred implementation manner of this embodiment may be referred to the related description in the embodiment, and will not be repeated herein.
The satellite positioning device may further include a processor and a memory, where the determining module 602, the acquiring module 604, the adjusting module 606, etc. are stored as program units, and the processor executes the program units stored in the memory to implement corresponding functions.
The processor includes a kernel, and the kernel fetches the corresponding program unit from the memory. The kernel may be provided with one or more. The memory may include volatile memory, random Access Memory (RAM), and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM), among other forms in computer readable media, the memory including at least one memory chip.
There is further provided, in accordance with an embodiment of the present invention, a system embodiment for implementing a satellite positioning method, and fig. 7 is a schematic diagram of an alternative satellite positioning system according to an embodiment of the present invention, as shown in fig. 7, where the satellite positioning system includes: the system is described below with respect to the controller 702, the rf unit 704, and the servo motor 706.
A controller 702 configured to determine transmission signals corresponding to a plurality of areas of the flat panel array antenna after the rough adjustment process, wherein the rough adjustment process is a positioning process based on satellite coordinates corresponding to a target satellite, and the transmission signals corresponding to the plurality of areas are different signals transmitted to the target satellite by the plurality of areas of the flat panel array antenna after the rough adjustment process;
a radio frequency unit 704, coupled to the controller 702, for acquiring received signals corresponding to the multiple regions, where the received signals corresponding to the multiple regions are obtained by the target satellite in response to the transmitted signals corresponding to the multiple regions;
and a servo motor 706, coupled to the controller 702, configured to perform a first adjustment on the planar array antenna when a signal difference between the received signals corresponding to any two of the plurality of areas is greater than a preset signal difference threshold, until the signal difference between any two of the plurality of areas is less than or equal to the signal difference threshold, so as to obtain a target adjustment state, so that the planar array antenna completes positioning processing on the target satellite.
In the satellite positioning system provided by the embodiment of the invention, the controller 702 is configured to determine the transmission signals corresponding to the multiple areas of the flat panel array antenna after the coarse adjustment, where the coarse adjustment is a positioning process based on the satellite coordinates corresponding to the target satellite, and the transmission signals corresponding to the multiple areas are different signals transmitted to the target satellite by the multiple areas of the flat panel array antenna after the coarse adjustment; a radio frequency unit 704, coupled to the controller 702, for acquiring received signals corresponding to the multiple regions, where the received signals corresponding to the multiple regions are obtained by the target satellite in response to the transmitted signals corresponding to the multiple regions; and a servo motor 706, coupled to the controller 702, configured to perform a first adjustment on the planar array antenna when a signal difference between the received signals corresponding to any two of the plurality of areas is greater than a preset signal difference threshold, until the signal difference between any two of the plurality of areas is less than or equal to the signal difference threshold, so as to obtain a target adjustment state, so that the planar array antenna completes positioning processing on the target satellite. The multi-channel multi-region flat-panel array antenna is utilized, the purpose of improving the accuracy of the beacons to the satellites is achieved, the accuracy of the beacons to the satellites is improved, the technical effect of improving the efficiency of the satellites is improved, and further the technical problems of low accuracy of the satellites and low efficiency of the satellites caused by adjacent satellite interference in the related technology are solved.
The embodiment of the invention provides a nonvolatile storage medium, on which a program is stored, which when executed by a processor, implements a satellite positioning method.
The embodiment of the invention provides an electronic device, which comprises a processor, a memory and a program stored on the memory and capable of running on the processor, wherein the following steps are realized when the processor executes the program: determining transmission signals respectively corresponding to a plurality of areas of the flat panel array antenna after rough adjustment processing, wherein the rough adjustment processing is positioning processing based on satellite coordinates corresponding to a target satellite, and the transmission signals respectively corresponding to the plurality of areas are different signals respectively transmitted to the target satellite by the plurality of areas of the flat panel array antenna after rough adjustment processing; acquiring receiving signals corresponding to the multiple areas respectively, wherein the receiving signals corresponding to the multiple areas are obtained by the target satellite in response to the transmitting signals corresponding to the multiple areas respectively; and under the condition that the signal difference of the received signals corresponding to any two areas is larger than a preset signal difference threshold value in the received signals corresponding to the areas respectively, performing first adjustment on the flat panel array antenna until the signal difference corresponding to any two areas is smaller than or equal to the signal difference threshold value in the received signals corresponding to the areas respectively, and obtaining a target adjustment state, so that the flat panel array antenna completes positioning processing on the target satellite. The device herein may be a server, a PC, etc.
The invention also provides a computer program product adapted to perform, when executed on a data processing device, a program initialized with the method steps of: determining transmission signals respectively corresponding to a plurality of areas of the flat panel array antenna after rough adjustment processing, wherein the rough adjustment processing is positioning processing based on satellite coordinates corresponding to a target satellite, and the transmission signals respectively corresponding to the plurality of areas are different signals respectively transmitted to the target satellite by the plurality of areas of the flat panel array antenna after rough adjustment processing; acquiring receiving signals corresponding to the multiple areas respectively, wherein the receiving signals corresponding to the multiple areas are obtained by the target satellite in response to the transmitting signals corresponding to the multiple areas respectively; and under the condition that the signal difference of the received signals corresponding to any two areas is larger than a preset signal difference threshold value in the received signals corresponding to the areas respectively, performing first adjustment on the flat panel array antenna until the signal difference corresponding to any two areas is smaller than or equal to the signal difference threshold value in the received signals corresponding to the areas respectively, and obtaining a target adjustment state, so that the flat panel array antenna completes positioning processing on the target satellite.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, etc., such as Read Only Memory (ROM) or flash memory (flashRAM). Memory is an example of a computer-readable medium.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The foregoing is merely exemplary of the present invention and is not intended to limit the present invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are to be included in the scope of the claims of the present invention.

Claims (10)

1. A satellite positioning method, comprising:
determining transmission signals respectively corresponding to a plurality of areas of the flat panel array antenna after rough adjustment processing, wherein the rough adjustment processing is positioning processing based on satellite coordinates corresponding to a target satellite, and the transmission signals respectively corresponding to the plurality of areas are different signals respectively transmitted to the target satellite by the plurality of areas of the flat panel array antenna after rough adjustment processing;
Acquiring receiving signals corresponding to the multiple areas respectively, wherein the receiving signals corresponding to the multiple areas are obtained by the target satellite responding to the transmitting signals corresponding to the multiple areas respectively;
and under the condition that the signal difference of the received signals corresponding to any two areas is larger than a preset signal difference threshold value in the received signals corresponding to the areas respectively, performing first adjustment on the flat panel array antenna until the signal difference corresponding to any two areas is smaller than or equal to the signal difference threshold value in the received signals corresponding to the areas respectively, and obtaining a target adjustment state, so that the flat panel array antenna completes positioning processing on the target satellite.
2. The method of claim 1, wherein determining the transmit signals for each of the plurality of areas of the coarse-tuned planar array antenna comprises:
determining spreading code sequences corresponding to the multiple areas respectively, wherein the spreading code sequences corresponding to the multiple areas are different;
based on a preset calibration signal, a spread spectrum code sequence corresponding to each of the plurality of areas is adopted to generate a transmission signal corresponding to each of the plurality of areas of the flat panel array antenna after the rough adjustment processing.
3. The method of claim 1, wherein the signal difference comprises: a signal peak difference, the signal difference threshold comprising a peak difference threshold; under the condition that the signal difference of the received signals corresponding to any two areas is larger than a preset signal difference threshold value in the received signals corresponding to the areas respectively, performing first adjustment on the flat panel array antenna until the signal difference corresponding to any two areas is smaller than or equal to the signal difference threshold value in the received signals corresponding to the areas respectively, so as to obtain a target adjustment state, so that the flat panel array antenna completes positioning processing on the target satellite, and the method comprises the following steps:
determining a target area with the strongest peak value of the received signals in the plurality of areas under the condition that the peak value difference of the received signals corresponding to any two areas is larger than the peak value difference threshold value;
and controlling the flat panel array antenna to adjust the azimuth of the target area until the peak value difference corresponding to any two areas is smaller than or equal to the peak value difference threshold value in the received signals corresponding to the areas respectively, so as to obtain the target adjustment state.
4. A method according to claim 3, wherein the signal difference further comprises: peak position difference, the signal difference threshold further comprising a position difference threshold; before determining the target area with the strongest received signal peak value in the plurality of areas, if the peak value difference of the received signals respectively corresponding to any two areas is greater than the peak value difference threshold value, the method further includes:
and judging whether the peak value difference of the received signals corresponding to any two areas is larger than the peak value difference threshold value or not under the condition that the peak value position difference of the received signals corresponding to any two areas is smaller than or equal to the position difference threshold value.
5. The method according to claim 4, wherein the method further comprises:
and under the condition that the peak position difference of the received signals corresponding to any two areas is larger than the position difference threshold, performing new rough adjustment processing on the flat panel array antenna to obtain the flat panel array antenna after the new rough adjustment processing.
6. The method of claim 1, wherein the target satellite communicates with the flat panel array antenna using linear polarization; and adjusting the planar array antenna under the condition that the signal difference of the received signals corresponding to any two areas is larger than a preset signal difference threshold value in the received signals corresponding to the areas respectively, until the signal difference corresponding to any two areas is smaller than or equal to the signal difference threshold value in the received signals corresponding to the areas respectively, so as to obtain a target adjustment state, so that the planar array antenna completes positioning processing of the target satellite, wherein the method comprises the following steps:
Performing second adjustment on the flat-panel array antenna until the signal difference of the received signals corresponding to the multiple areas is smaller than or equal to the signal difference threshold value, so as to obtain multiple adjustment states corresponding to the flat-panel array antenna, wherein the second adjustment adjusts the current polarization angle corresponding to the flat-panel array antenna;
determining a region among the plurality of regions;
determining test signals respectively transmitted by the area in the plurality of adjustment states, wherein the test signals respectively transmitted by the plurality of adjustment states are the same signals respectively transmitted by the area to the target satellite in the plurality of adjustment states;
acquiring feedback signals respectively received by the area in a plurality of adjustment states, wherein the feedback signals respectively received by the plurality of adjustment states are obtained by the target satellite responding to the test signals respectively corresponding to the area in the plurality of adjustment states;
determining a first adjustment state in which the feedback signal is strongest in the plurality of adjustment states for the one region;
and taking the first regulation state as the target regulation state.
7. The method of claim 1, wherein prior to said determining the transmit signals for each of the plurality of areas of the flat panel array antenna after the coarse tuning process, the method further comprises:
obtaining region coordinates corresponding to the flat-panel array antenna and satellite coordinates corresponding to the target satellite;
determining an adjustment azimuth angle for adjusting the flat panel array antenna to a target direction based on the regional coordinates and the satellite coordinates, and adjusting a pitch angle;
and adopting the azimuth angle adjustment and the pitch angle adjustment to perform the rough adjustment treatment on the flat panel array antenna to obtain the flat panel array antenna after the rough adjustment treatment.
8. The method of claim 7, wherein the target satellite communicates with the flat panel array antenna using linear polarization; the adopting the azimuth angle adjustment and the pitch angle adjustment, the coarse adjustment processing is performed on the flat panel array antenna, including:
determining an adjusting polarization angle corresponding to the flat panel array antenna based on the polarization direction of the target satellite; and adopting the azimuth angle adjustment and the pitch angle adjustment, wherein the polarization angle adjustment is performed on the flat panel array antenna in a rough adjustment mode.
9. The method of claim 7, wherein said performing said coarse tuning of said planar array antenna using said adjusted azimuth angle and said adjusted elevation angle to obtain said coarse tuned planar array antenna comprises:
adopting the azimuth angle adjustment to adjust the azimuth angle of the flat-panel array antenna to obtain a feedback azimuth angle corresponding to the flat-panel array antenna;
under the condition that the error between the adjustment azimuth angle and the feedback azimuth angle is smaller than a preset first threshold value, adopting the adjustment pitch angle to adjust the pitch angle of the flat-panel array antenna to obtain a feedback pitch angle corresponding to the flat-panel array antenna;
and under the condition that the error between the adjustment pitch angle and the feedback pitch angle is smaller than a preset second threshold value, obtaining the flat array antenna after coarse adjustment.
10. A satellite positioning system, comprising:
the controller is used for determining transmission signals respectively corresponding to a plurality of areas of the flat panel array antenna after rough adjustment processing, wherein the rough adjustment processing is positioning processing based on satellite coordinates corresponding to a target satellite, and the transmission signals respectively corresponding to the plurality of areas are different signals respectively transmitted to the target satellite by the plurality of areas of the flat panel array antenna after rough adjustment processing;
The radio frequency unit is connected with the controller and used for acquiring received signals corresponding to the multiple areas respectively, wherein the received signals corresponding to the multiple areas are obtained by the target satellite responding to the transmitted signals corresponding to the multiple areas respectively;
and the servo motor is connected with the controller and is used for carrying out first adjustment on the flat panel array antenna under the condition that the signal difference of the received signals corresponding to any two areas is larger than a preset signal difference threshold value in the received signals corresponding to the areas respectively until the signal difference corresponding to any two areas is smaller than or equal to the signal difference threshold value in the received signals corresponding to the areas respectively, so as to obtain a target adjustment state, and the flat panel array antenna is enabled to finish positioning processing on the target satellite.
CN202211688499.0A 2022-12-27 2022-12-27 Satellite positioning method and system Pending CN116961720A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211688499.0A CN116961720A (en) 2022-12-27 2022-12-27 Satellite positioning method and system

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Application Number Priority Date Filing Date Title
CN202211688499.0A CN116961720A (en) 2022-12-27 2022-12-27 Satellite positioning method and system

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Publication Number Publication Date
CN116961720A true CN116961720A (en) 2023-10-27

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