CN108650012A - It a kind of satellite antenna shake monitoring and influences to eliminate analysis method and system - Google Patents
It a kind of satellite antenna shake monitoring and influences to eliminate analysis method and system Download PDFInfo
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- CN108650012A CN108650012A CN201810310758.3A CN201810310758A CN108650012A CN 108650012 A CN108650012 A CN 108650012A CN 201810310758 A CN201810310758 A CN 201810310758A CN 108650012 A CN108650012 A CN 108650012A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/102—Power radiated at antenna
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
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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
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Abstract
The invention discloses a kind of satellite antenna shake monitoring and influence to eliminate analysis method and system, wherein the method includes：The equivalent isotropically radiated power of satellite antenna is monitored, its variation tendency is obtained；Strength model is generated according to variation tendency, and causes to make judgement to whether Strength Changes state is shaken by satellite antenna；According to court verdict and reaction time model, the theoretical reaction time is calculated；According to the comparison result in theoretical reaction time and real reaction time, the dispelling tactics to match is selected to complete to eliminate the influence that satellite antenna is shaken.The present invention is by monitoring satellite antenna radiation intensity threshold situation of change; calculating reacting time limiting value; with the reaction time of earth station or user the most key technical indicator; in the case where ensureing satellite-signal and user or earth station's parameter is working properly or satellite-signal is with user or earth station's not chain rupture, provides and eliminate antenna and shake the handover scheme affected to signal strength and flow.
Description
Technical field
The invention belongs to technical field of satellite communication more particularly to a kind of satellite antenna shake monitoring and influence to eliminate analysis
Method and system.
Background technology
In satellite communication, antenna is its important component, carries sending and receiving for signal, directly affects terminal
Between signal transmit.Satellite communication is even more so, if carrying out the transformation and transmission of electromagnetic wave without antenna, satellite movement
Communication can not be achieved.But in actual application, on the one hand, the netted large aperture antenna entrained by satellite is by more waves
Shu Zucheng, in order to complete the tasks such as certain tracking or signal relaying, satellite antenna, which has, more and more large-scale to become
Gesture.But due to the limitation of launching condition, antenna generally all shows expansion so that antenna is relatively light and with centainly soft
Property, it can cause certain shake when emitting signal beam or work.On the other hand, satellite in orbit during, it is larger
Flexible antennas can undergo the influence of space environment noise, and the large aperture antenna wave beam of satellite can be made to be likely to the finger for moment occur
To jitter problem.In message transmitting procedure, satellite needs to control spaceborne when establishing communication link with user or earth station
Antenna is accurately directed to receiver, and the shake of satellite antenna can lead to the generation of error, influences the pointing accuracy of satellite antenna,
Small variation can all produce bigger effect user or ground station reception signal strength.When satellite is in work service state
When, it is each that whether the stability of antenna can correctly transmit the link budget, network communication quality, signaling of satellite communication network etc.
Aspect impacts, and antenna is even up to thousands of kilometers since its bore is larger, to the coverage area on ground, once it shakes
Phenomenon may make the earth large area coverage area inaccurately even network interruption of the area of coverage, seriously reduce communication quality.
Invention content
The technology of the present invention solves the problems, such as：Overcome the deficiencies of the prior art and provide a kind of satellite antenna shake monitoring and shadow
It rings and eliminates analysis method and system, by monitoring satellite antenna radiation intensity threshold situation of change, and calculate user or ground
The reaction time limiting value stood is ensureing satellite-signal with the reaction time of earth station or user the most key technical indicator
In the case that user or earth station's parameter be working properly or satellite-signal and user or earth station's not chain rupture, elimination day is provided
Line shakes the handover scheme affected to signal strength and flow.
In order to solve the above-mentioned technical problem, the invention discloses a kind of satellite antenna shake monitorings and influence to eliminate analysis side
Method, including：
The equivalent isotropically radiated power of satellite antenna is monitored, the variation tendency of equivalent isotropically radiated power is obtained；
Strength model is generated according to the variation tendency of equivalent isotropically radiated power, according to strength model to Strength Changes state
Whether cause to make judgement by satellite antenna shake；
According to court verdict and reaction time model, the theoretical reaction time is calculated；
According to the comparison result in theoretical reaction time and real reaction time, the dispelling tactics to match is selected to complete to defending
The influence of star antenna shake is eliminated.
In above-mentioned satellite antenna shakes monitoring and influences to eliminate analysis method, equivalent omnidirectional's spoke to satellite antenna
It penetrates power to be monitored, obtains the variation tendency of equivalent isotropically radiated power, including：
By satellite signal receiver, the signal that satellite antenna is launched is received, and strong to the signal received
Angle value is observed, and continues to track signal strength values with the variation tendency of time, obtains the change of equivalent isotropically radiated power
Change trend.
It is described according to equivalent isotropically radiated power in above-mentioned satellite antenna shakes monitoring and influences to eliminate analysis method
Variation tendency generates strength model, is sentenced to whether Strength Changes state is caused to make by satellite antenna shake according to strength model
Certainly, including：
According to the variation tendency of equivalent isotropically radiated power, antenna coverage areas is divided into increasing intensity region and intensity subtracts
Zonule；
Region is reduced to increasing intensity region and intensity respectively and establishes analysis model；
Cause to make judgement according to whether the analysis model Strength Changes state of foundation is shaken by satellite antenna.
It is described respectively to increasing intensity region and strong in above-mentioned satellite antenna shakes monitoring and influences to eliminate analysis method
Degree reduces region and establishes analysis model, including：
Analysis model is established to increasing intensity region, obtains increasing intensity region shake monitoring model；Wherein, intensity increases
The signal strength in region increases, and signal, which has, to be continued and not disconnected state；
Region is reduced to intensity and establishes analysis model, intensity is obtained and reduces region shake monitoring model；Wherein, intensity reduces
The signal strength in region reduces, and chain rupture may occur for signal.
In above-mentioned satellite antenna shakes monitoring and influences to eliminate analysis method, monitoring model is shaken in increasing intensity region,
For：
If signal strength is less than setting saltus step thresholding in setting transformation period, alternatively, being jumped when signal strength reaches setting
The time for becoming thresholding is unsatisfactory for setting time threshold value, then adjudicates this change in signal strength and caused by satellite antenna shake；
If signal strength meets or exceeds setting saltus step thresholding in setting transformation period, and when duration satisfaction setting
Between threshold value, then adjudicate this change in signal strength not by satellite antenna shake cause.
In above-mentioned satellite antenna shakes monitoring and influences to eliminate analysis method, intensity reduces region and shakes monitoring model,
For：
If later strength variation tendency shows ascendant trend within certain time, the change of this signal strength is adjudicated
Change and is caused by satellite antenna shake；
If signal strength continues to decline in setting transformation period, this change in signal strength is adjudicated not by satellite antenna
Shake causes.
It is described according to court verdict and reaction time in above-mentioned satellite antenna shakes monitoring and influences to eliminate analysis method
The theoretical reaction time is calculated in model, including：
When court verdict indication signal Strength Changes are caused by satellite antenna shake, according to reaction time model, calculate
Obtain the theoretical reaction time.
It is described according to theoretical reaction time and reality in above-mentioned satellite antenna shakes monitoring and influences to eliminate analysis method
The comparison result in reaction time selects the dispelling tactics to match to complete to eliminate the influence that satellite antenna is shaken, including：
When the real reaction time being less than the theoretical reaction time,
For increasing intensity region, power control method is selected to reduce the intensity for the antenna shaken, each parameter is made to work
Normally, realize that effect of jitter is eliminated；
Region is reduced for intensity, nearby covering satellite or same satellite remaining element antenna is searched, enhances this antenna
Gain makes beam coverage and main lobe width increase, and realizes that the antenna effect of jitter of not chain rupture is eliminated.
Correspondingly, the invention also discloses a kind of satellite antenna shake monitoring and influence to eliminate analysis system, including：
Monitoring modular is monitored for the equivalent isotropically radiated power to satellite antenna, obtains equivalent omnidirectional radiation work(
The variation tendency of rate；
Judging module, for generating strength model according to the variation tendency of equivalent isotropically radiated power, according to strength model
Cause to make judgement to whether Strength Changes state is shaken by satellite antenna；
Computing module, for according to court verdict and reaction time model, the theoretical reaction time to be calculated；
Execution module, for the comparison result according to theoretical reaction time and real reaction time, select to match disappears
Except strategy is completed to eliminate the influence that satellite antenna is shaken.
The present invention has the following advantages：
(1) when the signal strength of ground satellite station or user terminal changes its main cause can be adjudicated in time whether
It is shaken for satellite antenna；
(2) the reaction time threshold value of earth station or user terminal can be provided when satellite antenna is shaken；
(3) it can ensure user or earth station with larger probability and while satellite parametric reduction is working properly or not chain rupture
The influence for completing antenna shake is eliminated.
Description of the drawings
Fig. 1 is a kind of satellite antenna shake monitoring and to influence to eliminate the step flow of analysis method in the embodiment of the present invention
Figure；
Fig. 2 is a kind of increasing intensity region shake monitoring model schematic diagram in the embodiment of the present invention；
Fig. 3 is a kind of intensity reduction region shake monitoring model schematic diagram in the embodiment of the present invention；
Fig. 4 is a kind of reaction time model schematic in the embodiment of the present invention；
Fig. 5 is a kind of radiation patterns schematic diagram in the embodiment of the present invention.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to disclosed by the invention
Embodiment is described in further detail.
Referring to Fig.1, it shows a kind of satellite antenna shake monitoring in the embodiment of the present invention and influences to eliminate analysis method
Flow chart of steps.In the present embodiment, analysis method is eliminated in the satellite antenna shake monitoring and influence, including：
Step 101, the equivalent isotropically radiated power of satellite antenna is monitored, obtains the change of equivalent isotropically radiated power
Change trend.
In the present embodiment, the prison to the equivalent isotropically radiated power of satellite antenna can be realized by earth station or user
It surveys.For example, can be carried out to the signal that satellite antenna is launched by (earth station or user side) satellite signal receiver
It receives, and the signal strength values received is observed, and continue to track signal strength values with the variation tendency of time, obtain
To the variation tendency of equivalent isotropically radiated power.
Step 102, strength model is generated according to the variation tendency of equivalent isotropically radiated power, according to strength model to intensity
Whether variable condition is caused to make judgement by satellite antenna shake.
In the present embodiment, antenna coverage areas can be divided by force according to the variation tendency of equivalent isotropically radiated power
Degree increases region and intensity reduces region；Region is reduced to increasing intensity region and intensity respectively and establishes analysis model；According to building
Whether vertical analysis model Strength Changes state is caused to make judgement by satellite antenna shake.
Preferably, analysis model is established to increasing intensity region, obtains increasing intensity region shake monitoring model.Wherein,
The signal strength of increasing intensity region increases, and signal, which has, to be continued and not disconnected state, as shown in Figure 2.
Preferably, region is reduced to intensity and establishes analysis model, obtained intensity and reduce region shake monitoring model.Wherein,
The signal strength that intensity reduces region reduces, and chain rupture may occur for signal, as shown in Figure 3.
Preferably, monitoring model is shaken in increasing intensity region, is used for：It is set if signal strength is less than in setting transformation period
Determine saltus step thresholding, alternatively, when the time that signal strength reaches setting saltus step thresholding is unsatisfactory for setting time threshold value, then adjudicates this time
Change in signal strength is caused by satellite antenna shake；And if signal strength meets or exceeds setting in setting transformation period
Saltus step thresholding, and the duration meet setting time threshold value, then adjudicate this change in signal strength not by satellite antenna shake draw
It rises.
Preferably, intensity reduces region shake monitoring model, is used for：If later strength variation tendency is in certain time range
Ascendant trend is inside showed, then adjudicates this change in signal strength and is caused by satellite antenna shake；And if signal strength is being set
Determine to continue to decline in transformation period, then adjudicates this change in signal strength and do not caused by satellite antenna shake.
Step 103, according to court verdict and reaction time model, the theoretical reaction time is calculated.
In the present embodiment, when court verdict indication signal Strength Changes are caused by satellite antenna shake, according to reaction
The theoretical reaction time is calculated in time model.
Preferably, with reference to Fig. 4, a kind of reaction time model schematic in the embodiment of the present invention is shown.Reaction time mould
The resolving principle of type is as follows：
According to estimation area, estimation antenna shakes angle [alpha], according to the distance R of satellite to the earth, with reference to Fig. 4, estimation variation
Region relative path length L is：
L=α × R
Because terrestrial coverage area is farther out from satellite distance, it is assumed that terrestrial coverage area is circle, and actual area area is small
In using L/2 as the area of a circle of radius, therefore, overlay area estimated value is bigger than actual value.Area reckoning, which is more than actual value, can allow letter
Number of users in number range of receiving increases, can be smaller than actual value when calculating single user's amplitude transformation period.Then change area
For：
By the user distribution rate that earth station is prior, the number of users in shake region can be obtained, the angular speed of antenna shake is ω
When, then can obtain the Strength Changes time in range is：
To sum up, the reaction time threshold value (that is, theoretical reaction time) of earth station or subscriber terminal equipment is obtained.
Step 104, according to the comparison result in theoretical reaction time and real reaction time, the dispelling tactics to match are selected
It completes to eliminate the influence that satellite antenna is shaken.
In the present embodiment, when the real reaction time being less than the theoretical reaction time, for increasing intensity region, work(is selected
Rate control methods reduce the intensity for the antenna shaken, and keep each parameter working properly, realize that effect of jitter is eliminated；Intensity is subtracted
Zonule searches nearby covering satellite or same satellite remaining element antenna, enhances this antenna gain, make beam coverage
Increase with main lobe width, realizes that the antenna effect of jitter of not chain rupture is eliminated.Wherein, the real reaction time refers to：Earth station or use
The time that family is adjusted.
Based on above-described embodiment, illustrated with reference to a specific example.
(1) by earth station or the satellite signal receiver of user, the signal that satellite antenna is launched is received,
Meanwhile the signal strength values received are observed by satellite signal receiver, and continue to track its intensity with the time
Variation tendency.For example, because satellite relative to satellite antenna quality big, volume weight, set satellite body in scheme and do not shake, satellite
Antenna does the rotation that angular speed is gradually reduced about tangential, radial direction or normal orientation so that the bowing of antenna, the elevation angle changes.
Radiation patterns schematic diagram is as shown in Figure 5.If orbit plane is coordinate plane, Z axis is directed toward the earth's core by centroid of satellite, and X-axis is in track
It is vertical with Z axis and be directed toward satellite velocities direction in plane, Y-axis it is orthogonal with X, the Z axis right hand and with orbit plane normal parallel, one
Under fixed condition, orbital coordinate system is consistent with satellite body coordinate system, then region B in Fig. 5 can be obtained and belong to increasing intensity region, and
Region A belongs to intensity and reduces region.
(2) according to variation tendency, antenna coverage areas is divided into increasing intensity region and intensity reduces region, and is right respectively
Increasing intensity region and intensity reduce region and establish analysis model, cause to do to whether Strength Changes state is shaken by satellite antenna
Go out judgement.For example, shaking monitoring model according to increasing intensity region, Fig. 2 illustrates the increment as satellite antenna shake time domain B
Variation, wherein TupIt measures the intensity learnt in advance for system and increases duration threshold, QupMeasured in advance for system learn it is strong
Spend upper limit saltus step thresholding.If intensity value is no more than the saltus step thresholding, or is no more than the time more than the time of the saltus step thresholding
Threshold value illustrates to change caused by the Strength Changes are shaken by satellite antenna.Meanwhile shake monitoring mould in region is reduced according to intensity
Type, Fig. 3 illustrate the decrement variation as satellite antenna shake time domain A, wherein TdownMeasure the intensity learnt in advance for system
Reduce duration threshold, QdownMeasure the low intensity limit saltus step thresholding learnt in advance for system.It should if intensity value is not less than
Saltus step thresholding, or it is no more than time threshold less than the time of the saltus step thresholding, illustrate that the Strength Changes are shaken by satellite antenna
Caused variation.
(3) when change in signal strength judgement is is caused by antenna shake, then according to reaction time model, earth station is calculated
Or the reaction time threshold value of user.For example, according to reaction time model, when the antenna shake angle of geostationary orbit satellite is
At 0.6 degree, region of variation relative path length is：
L0.6=α × R=0.6 × 36000000=2.16 × 107
Its variation area, which can be obtained, is：
Finally, when the angular velocity omega of antenna shake is 6 × 10-10When degrees second, the Strength Changes time can be obtained in range
For：
To sum up, the reaction time threshold value t for obtaining earth station or subscriber terminal equipment is 2.73 × 10-7。
(4) reaction time of actual ground station or user are compared with the threshold value that reaction time model calculates,
The real reaction time is earth station or the time that user is adjusted, and is less than threshold value 2.73 × 10 when the real reaction time-7When, it is right
In increasing intensity region, the methods of power control may be used, reduce the intensity for the antenna shaken, make satellite, earth station
Or the parameters of user are working properly, realize that effect of jitter is eliminated；For intensity reduce region, can take for example search it is attached
Nearly covering satellite or same satellite remaining element antenna, enhance its antenna gain, and beam coverage and main lobe width is made to increase
The methods of add, realize that the antenna effect of jitter of not chain rupture is eliminated.For example, certain region is increasing intensity region, then it can apply and open
Ring power control, earth station's firing order control the transmission power of satellite antenna, make its reduction, then realize that running parameter is normal；
When certain region be formidable opponent reduce region when, then can be arranged by the software of earth station or user, adjust satellite antenna gain or
Person's beam coverage makes the earth station or user be switching to the state covered by uncovered, then can be achieved satellite with
User or earth station's not chain rupture.Later, earth station or user continue to keep the monitoring to signal strength state.
It is as follows that analysis method specific implementation flow totality case is eliminated in classical satellite antenna shake monitoring and influence：
Step 1, certain earth station or certain user are monitored the intensity of certain geostationary orbit satellite antenna, tracker
State of strength variation tendency show that the earth station or user's intensity belong to increasing intensity region；
Step 2 shakes monitoring model according to increasing intensity region, is jumped when the increment variation upper limit value in the region is no more than
Become thresholding Qup, or more than the saltus step thresholding time be no more than time threshold Tup, illustrate that the Strength Changes are trembled by satellite antenna
Variation caused by dynamic can adjudicate the current satellite antenna and be shaken；
Step 3 calculates the reaction time that the region increases region according to reaction time model, and antenna shake angle is
0.6 degree, the angular velocity omega of antenna shake is 6 × 10-10When degrees second, it can be deduced that its Strength Changes time is 2.73 × 10-7；
Step 4, earth station reduce the intensity for the antenna shaken by software using the methods of power control,
While with satellite chain rupture does not occur for earth station or user, keep various functions parameter normal.Later, earth station or user continue
Keep the monitoring to signal strength state.
Conclusion：By step 1, the present invention can monitor the signal strength of satellite antenna in real time, and adjudicate the satellite antenna
Signal strength changed, i.e. intensity enhancing, it is critical that, by step 2, the present invention can adjudicate the satellite antenna
Antenna dither state has occurred, and according to step 3, earth station when satellite antenna is shaken can be obtained in time or user is anti-
Between seasonable, the method that the last present invention can provide power control in time eliminates satellite antenna shake to maximum possible
The influence brought.
In embodiments of the present invention, it also discloses a kind of satellite antenna shake monitoring and influences to eliminate analysis system, including：
Monitoring modular is monitored for the equivalent isotropically radiated power to satellite antenna, obtains the variation of equivalent isotropically radiated power
Trend；Judging module, for generating strength model according to the variation tendency of equivalent isotropically radiated power, according to strength model to strong
Whether degree variable condition is caused to make judgement by satellite antenna shake；Computing module, for according to court verdict and reaction time
The theoretical reaction time is calculated in model；Execution module, for the comparison knot according to theoretical reaction time and real reaction time
Fruit selects the dispelling tactics to match to complete to eliminate the influence that satellite antenna is shaken.
For system embodiments, since it is corresponding with embodiment of the method, so description is fairly simple, correlation
Place referring to embodiment of the method part explanation.
Each embodiment in this explanation is described in a progressive manner, the highlights of each of the examples are with its
The difference of his embodiment, the same or similar parts between the embodiments can be referred to each other.
The above, best specific implementation mode only of the invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.
The content that description in the present invention is not described in detail belongs to the known technology of professional and technical personnel in the field.
Claims (9)
1. analysis method is eliminated in a kind of satellite antenna shake monitoring and influence, which is characterized in that including：
The equivalent isotropically radiated power of satellite antenna is monitored, the variation tendency of equivalent isotropically radiated power is obtained；
According to the variation tendency of equivalent isotropically radiated power generate strength model, according to strength model to Strength Changes state whether
Cause to make judgement by satellite antenna shake；
According to court verdict and reaction time model, the theoretical reaction time is calculated；
According to the comparison result in theoretical reaction time and real reaction time, the dispelling tactics to match is selected to complete to satellite day
The influence of line shake is eliminated.
2. analysis method is eliminated in satellite antenna shake monitoring according to claim 1 and influence, which is characterized in that described right
The equivalent isotropically radiated power of satellite antenna is monitored, and obtains the variation tendency of equivalent isotropically radiated power, including：
By satellite signal receiver, the signal that satellite antenna is launched is received, and the signal strength values to receiving
It is observed, and continues the variation tendency for tracking signal strength values with the time, the variation for obtaining equivalent isotropically radiated power becomes
Gesture.
3. analysis method is eliminated in satellite antenna shake monitoring according to claim 1 and influence, which is characterized in that described
Strength model is generated according to the variation tendency of equivalent isotropically radiated power, according to strength model to Strength Changes state whether by satellite
Antenna shake causes to make judgement, including：
According to the variation tendency of equivalent isotropically radiated power, antenna coverage areas is divided into increasing intensity region and intensity reduces area
Domain；
Region is reduced to increasing intensity region and intensity respectively and establishes analysis model；
Cause to make judgement according to whether the analysis model Strength Changes state of foundation is shaken by satellite antenna.
4. analysis method is eliminated in satellite antenna shake monitoring according to claim 3 and influence, which is characterized in that described point
It is other that analysis model is established to increasing intensity region and intensity reduction region, including：
Analysis model is established to increasing intensity region, obtains increasing intensity region shake monitoring model；Wherein, increasing intensity region
Signal strength increase, signal, which has, to be continued and not disconnected state；
Region is reduced to intensity and establishes analysis model, intensity is obtained and reduces region shake monitoring model；Wherein, intensity reduces region
Signal strength reduce, chain rupture may occur for signal.
5. analysis method is eliminated in satellite antenna shake monitoring according to claim 4 and influence, which is characterized in that intensity increases
Monitoring model is shaken in big region, is used for：
If signal strength is less than setting saltus step thresholding in setting transformation period, alternatively, when signal strength reaches setting saltus step door
The time of limit is unsatisfactory for setting time threshold value, then adjudicates this change in signal strength and caused by satellite antenna shake；
If signal strength meets or exceeds setting saltus step thresholding in setting transformation period, and the duration meets setting time threshold
Value is then adjudicated this change in signal strength and is not caused by satellite antenna shake.
6. analysis method is eliminated in satellite antenna shake monitoring according to claim 4 and influence, which is characterized in that intensity subtracts
Monitoring model is shaken in zonule, is used for：
If later strength variation tendency shows ascendant trend within certain time, adjudicate this change in signal strength by
Satellite antenna shake causes；
If signal strength continues to decline in setting transformation period, adjudicates this change in signal strength and do not shaken by satellite antenna
Cause.
7. analysis method is eliminated in satellite antenna shake monitoring according to claim 1 and influence, which is characterized in that described
According to court verdict and reaction time model, the theoretical reaction time is calculated, including：
When court verdict indication signal Strength Changes are caused by satellite antenna shake, according to reaction time model, it is calculated
The theoretical reaction time.
8. analysis method is eliminated in satellite antenna shake monitoring according to claim 1 and influence, which is characterized in that described
According to the comparison result in theoretical reaction time and real reaction time, the dispelling tactics to match is selected to complete to shake satellite antenna
Influence eliminate, including：
When the real reaction time being less than the theoretical reaction time,
For increasing intensity region, selects power control method to reduce the intensity for the antenna shaken, keeps each parameter working properly,
Realize that effect of jitter is eliminated；
Region is reduced for intensity, nearby covering satellite or same satellite remaining element antenna is searched, enhances this antenna gain,
So that beam coverage and main lobe width is increased, realizes that the antenna effect of jitter of not chain rupture is eliminated.
9. analysis system is eliminated in a kind of satellite antenna shake monitoring and influence, which is characterized in that including：
Monitoring modular is monitored for the equivalent isotropically radiated power to satellite antenna, obtains equivalent isotropically radiated power
Variation tendency；
Judging module, for generating strength model according to the variation tendency of equivalent isotropically radiated power, according to strength model to strong
Whether degree variable condition is caused to make judgement by satellite antenna shake；
Computing module, for according to court verdict and reaction time model, the theoretical reaction time to be calculated；
Execution module selects the elimination plan to match for the comparison result according to theoretical reaction time and real reaction time
It slightly completes to eliminate the influence that satellite antenna is shaken.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112928426A (en) * | 2021-02-25 | 2021-06-08 | 上海卫星工程研究所 | Large-scale deployable satellite antenna profile precision in-orbit active control device and method |
| CN115882980A (en) * | 2023-03-03 | 2023-03-31 | 江苏晨创科技有限公司 | Prediction system for influence on satellite communication signals based on antenna pointing |
| CN117074799A (en) * | 2023-10-18 | 2023-11-17 | 深圳市博格斯通信技术有限公司 | Circularly polarized antenna and real-time detection method thereof |
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| CN115882980B (en) * | 2023-03-03 | 2023-07-18 | 江苏晨创科技有限公司 | Prediction system for influence of antenna pointing on satellite communication signals |
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