CN108631859A - A kind of telecommunication satellite star catalogue equipment field strength predictor method and system - Google Patents
A kind of telecommunication satellite star catalogue equipment field strength predictor method and system Download PDFInfo
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- CN108631859A CN108631859A CN201810805957.1A CN201810805957A CN108631859A CN 108631859 A CN108631859 A CN 108631859A CN 201810805957 A CN201810805957 A CN 201810805957A CN 108631859 A CN108631859 A CN 108631859A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B7/00—Radio transmission systems, i.e. using radiation field
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- H04B7/15—Active relay systems
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Abstract
Transmitting antenna gap marker matrix is established in a kind of telecommunication satellite star catalogue equipment field strength predictor method and system, including (1)；(2) it carries out pushing away operated in saturation one by one；(3) it determines the value of element in the transmitting antenna gap marker matrix, push away the power of saturation and pushes away the corresponding field intensity probe reading in saturation channel；(4) conversion factor is calculated；(5) minimum and maximum conversion factor is determined；(6) minimum and maximum field intensity value when the corresponding all channels of transponder of each transmitting antenna push away saturation is calculated；(7) the minimum and maximum field intensity value at star catalogue equipment when the corresponding all channels of all antennas push away saturation is estimated.The present invention had not only solved the problems, such as that test cannot directly obtain real data, but also solved the problems, such as that the accuracy that disengaging test data is completely dependent on simulation result and brings is low, efficiency is low and high-cost.
Description
Technical field
The present invention relates to a kind of telecommunication satellite star catalogue equipment field strength predictor method and systems, belong to satellite technology field.
Background technology
Telecommunication satellite often has multichannel transponder, and the self-compatibility of satellite includes between star catalogue sensitive equipment and transponder
It is compatible.Therefore, when should all road transponders of satellite be pushed away saturation, the field strength at star catalogue equipment is compared with its susceptibility threshold
Compared with to judge the compatibility of sensitive equipment and transponder.However, in order to reduce the latent lesion to satellite borne equipment, reduction pair
The damage of ground checkout equipment, during satellite is from compatibility test, all roads can not be pushed away saturation, Zhi Nenggen by transponder
Passage portion is set to push away saturation according to analysis result.Therefore, it is necessary to push away the test result under saturation state according to passage portion, institute is estimated
There is channel to push away the field strength under saturation state at sensitive equipment.The telecommunication satellite generally existing analysis with multichannel transponder is estimated
Demand needs design to estimate computational methods, meets model application requirement.
Existing field strength predictor method is using the field strength at Electromagnetic Simulation calculating star catalogue equipment, and the accuracy of this method exists
It is largely dependent upon the input datas such as the structural model, antenna model and electrical parameters of antenna of satellite and dummy satellite
Simulation result and test result can all be led to by simplifying many factors, the arbitrary factor deficiencies such as method, the Computational Electromagnetic Methods of selection
There is larger deviation.
The present invention is directed to the above situation, the test data under saturation state is pushed away using passage portion, to all frequencies of transponder
The field strength of star catalogue sensitive equipment position carries out estimating calculating when the standard-sized sheet of the channels Duan Suoyou.
Invention content
Present invention solves the technical problem that being：Overcome the deficiencies of the prior art and provide a kind of telecommunication satellite star catalogue equipment field
Strong predictor method and system act on the field intensity value at lower star catalogue equipment based on passage portion, and star catalogue is sensitive when acting on full tunnel
Field strength predictor method at equipment.
The technical scheme is that：
A kind of telecommunication satellite star catalogue equipment field strength predictor method, including：
(1) transmitting antenna-gap marker matrix Indiactor is establishedAC
(2) it according to constraint of saturation condition is pushed away, to the passage portion of transponder, carries out pushing away operated in saturation successively one by one；
(3) operated in saturation is pushed away according to what step (2) carried out, determines the transmitting antenna-gap marker matrix
IndiactorACThe value of middle element, the power for pushing away saturation and push away saturation channel corresponding field intensity probe reading；
(4) the corresponding transmission power in each channel and field strength of each transmitting antenna for having completed to push away operated in saturation are calculated
Conversion factor；
(5) conversion factor that each channel is corresponded to each transmitting antenna is compared, and determines wherein numerical value minimum and maximum
Conversion factor, be denoted as the minimum of the antenna and maximum conversion factor；
(6) own when the minimum of each transmitting antenna obtained by basis (5) pushes away saturation with maximum conversion factor and the antenna
The power of corresponding channel and, calculate minimum and maximum field strength when all channels of the corresponding transponder of each transmitting antenna push away saturation
Value；
(7) minimum and maximum field when saturation are pushed away according to the corresponding all channels of transponder of each transmitting antenna obtained by (6)
Intensity values estimate the minimum and maximum field intensity value at star catalogue equipment when the corresponding all channels of all antennas push away saturation.
The transmitting antenna-gap marker matrix IndiactorACSpecially：
Wherein IXiIndicate whether corresponding i-th of the channel of transmitting antenna that number is X has pushed away saturation, if pushed away full
With then IXi=1, otherwise IXi=0；If the channel is not present, IXi=0；X=1 ..., N, N are the transponder institute that is arranged on star
There is the quantity of transmitting antenna；I=1 ..., N ', N ' are the largest passages sum that all transmitting antennas correspond to transponder.
The constraint of saturation condition that pushes away includes：
(a) passage portion of the selected transponder covers all transmitting antennas；
(b) it will again be carried out after back-off after pushing away saturation only there are one the operation that channel push away saturation each time
Next channel pushes away the operation of saturation；
(c) during each transmitting antenna corresponding channel pushes away saturation, transmitting antenna itself and transmitting antenna are kept
It is constant with the relative position for measuring the field intensity probe of field strength at star catalogue equipment.
The step (2) pushes away operated in saturation and refers to：Transponder input signal power is adjusted to saturation power state.
The step (4) calculates the corresponding transmitting work(in each channel for each transmitting antenna for having completed to push away operated in saturation
The conversion factor of rate and field strength, specially：
Wherein, FXiFor the transmission power in the transmitting antenna channel and the conversion factor of field strength；
Xi is the channel number for pushing away saturation；X=1 ..., N；N is all transmitting antenna sums of transponder；I=1 ..., N '；
N ' is the total number of channels that the transmitting antenna corresponds to transponder；
EXiThe reading of field intensity probe after saturation is pushed away for the channel；
PXiThe power in saturation channel, I are pushed away for thisXiWhen=0, PXi=0.
The step (6) calculates minimum and maximum field when the corresponding all channels of transponder of each transmitting antenna push away saturation
Intensity values, specially：
Wherein, FXminWith FXmaxIt is minimum and maximum conversion factor；EXminWith EXmaxIt is corresponding all channels of each antenna
Push away minimum and maximum field intensity values when saturation；Be power when the corresponding all channels of the antenna push away saturation and.
The step (7) estimates the minimum and maximum field at star catalogue equipment when the corresponding all channels of all antennas push away saturation
Intensity values, specially：
Wherein, EminWith EmaxBe when the corresponding all channels of all antennas of transponder push away saturation at star catalogue equipment minimum and
Maximum field intensity values.
The field intensity probe is arranged at star catalogue equipment.
A kind of telecommunication satellite star catalogue equipment field strength Prediction System, including：
Identity matrix establishes module：For establishing transmitting antenna-gap marker matrix IndiactorAC；
Push away saturation block：For according to constraint of saturation condition is pushed away, to the passage portion of transponder, carrying out pushing away successively one by one full
And operation, and then according to operated in saturation is pushed away, determine that identity matrix establishes transmitting antenna-gap marker matrix of module foundation
IndiactorACThe value of middle element, the power for pushing away saturation and push away saturation channel corresponding field intensity probe reading；
Conversion factor determining module：Each channel pair for calculating each transmitting antenna for having completed to push away operated in saturation
The conversion factor of the transmission power and field strength answered；
Minimum and maximum conversion factor determining module：It is right for the result of calculation according to the conversion factor determining module
The conversion factor that each transmitting antenna corresponds to each channel is compared, and determines wherein numerical value minimum and maximum conversion factor, note
Minimum for the antenna and maximum conversion factor；
Minimum and maximum field intensity value determining module：Minimum for each transmitting antenna of gained and maximum conversion factor, with
And the antenna push away when saturation the power of all corresponding channels and, calculate all channels of the corresponding transponder of each transmitting antenna push away it is full
With when minimum and maximum field intensity value；
Field strength estimates module：When for pushing away saturation according to the corresponding all channels of transponder of each transmitting antenna of gained most
Small and maximum field intensity values, estimate the minimum and maximum field strength at star catalogue equipment when the corresponding all channels of all antennas push away saturation
Value.
The advantages of the present invention over the prior art are that：
(1) present invention is a kind of test data pushing away saturation based on passage portion, and the data that saturation is pushed away to full tunnel carry out
The computational methods of half object analysis；Its advantage is that not only having solved the problems, such as that test cannot directly obtain real data, but also solution
It has determined and has been detached from test data and is completely dependent on simulation result and the accuracy that brings is low, the low and high-cost problem of efficiency.
(2) when actual test, the factors such as thermal control, terrestrial signal source are limited to, all channels of transponder can not be pushed away
Operated in saturation, the present invention solve the problems, such as this.
Description of the drawings
Fig. 1 is the method for the present invention flow chart.
Specific implementation mode
Below in conjunction with attached drawing, the present invention is described in further detail.
The method of the present invention and system are applied to the telecommunication satellite with multichannel transponder, based on the lower star of passage portion effect
Field intensity value at table equipment, field strength when acting on full tunnel at star catalogue sensitive equipment are estimated.
As shown in Figure 1, a kind of telecommunication satellite star catalogue equipment field strength predictor method proposed by the present invention, steps are as follows：
(1) " transmitting antenna-channel " identity matrix Indiactor is establishedAC
Wherein IXiIndicate whether corresponding i-th of the channel of transmitting antenna that number is X has pushed away saturation, if pushed away full
With then IXi=1, otherwise IXi=0；If the channel is not present, IXi=0.X=1 ..., N, N are all transmitting antennas of transponder
Quantity；I=1 ..., N ', N ' are the largest passages sum that all transmitting antennas correspond to transponder.
(2) it according to constraint of saturation condition is pushed away, to the passage portion of transponder, carries out pushing away operated in saturation successively one by one；
Pushing away operated in saturation refers to：Transponder input signal power is adjusted to saturation power state.
Pushing away constraint of saturation condition includes：
(a) passage portion of the selected transponder covers all transmitting antennas；
(b) it will again be carried out after back-off after pushing away saturation only there are one the operation that channel push away saturation each time
Next channel pushes away the operation of saturation；
(c) during each transmitting antenna corresponding channel pushes away saturation, transmitting antenna itself and transmitting antenna are kept
It is constant with the relative position for measuring the field intensity probe of field strength at star catalogue equipment.
(3) operated in saturation is pushed away according to what step (2) carried out, determines the transmitting antenna-gap marker matrix
IndiactorACThe value of middle element, the power for pushing away saturation and push away saturation channel corresponding field intensity probe reading；
(4) the corresponding transmission power in each channel and field strength of each transmitting antenna for having completed to push away operated in saturation are calculated
Conversion factor.
It is required that during the corresponding channel of each transmitting antenna pushes away saturation, transmitting antenna itself and antenna are visited with field strength
The relative position of head does not all change.Following formula can be used to obtain for the corresponding conversion factor in each channel of each transmitting antenna
：
Wherein FXiFor the transmission power in the transmitting antenna channel and the conversion factor of field strength
Xi is the channel number for pushing away saturation；X=1 ..., N；N is all transmitting antenna sums of transponder；I=1 ..., N '；
N ' is the total number of channels that the transmitting antenna corresponds to transponder；
EXiThe reading of field intentisy meter after saturation, unit are pushed away for the channel：V/m；
PXiThe power in saturation channel, I are pushed away for thisXiWhen=0, PXi=0.
The conversion factor of the transmission power and field strength in each channel of other antennas can similarly be obtained.
(5) conversion factor that each channel is corresponded to each transmitting antenna is compared, and determines wherein numerical value minimum and maximum
Conversion factor, be denoted as the minimum of the antenna and maximum conversion factor；
(6) minimum of each antenna and maximum conversion factor are extracted according to the result of calculation of previous step, and calculate every day
All channels of the corresponding transponder of line push away minimum and maximum field intensity values when saturation.It can be calculated according to following formula：
Wherein, FXminWith FXmaxIt is the minimum extracted in previous step result of calculation and maximum conversion factor；
EXminWith EXmaxIt is minimum and maximum field intensity values when corresponding all channels of each antenna push away saturation, unit：V/m；
Be power when the corresponding all channels of the antenna push away saturation and.
Other antennas are similarly can get, all channels push away minimum and maximum field intensity values when saturation.
(7) maximum and field minimum intensity values at sensitive equipment when the corresponding all channels of all antennas push away saturation are estimated.Root
According to the result of calculation that third walks, final field strength range can be obtained according to following formula：
Wherein, EminWith EmaxIt is minimum and maximum field intensity values when all channels of transponder push away saturation, unit：V/m.
Based on the above method, the present invention also further proposes a kind of telecommunication satellite star catalogue equipment field strength Prediction System,
Be characterized in that include：
Identity matrix establishes module：For establishing transmitting antenna-gap marker matrix IndiactorAC；
Push away saturation block：For according to constraint of saturation condition is pushed away, to the passage portion of transponder, carrying out pushing away successively one by one full
And operation, and then according to operated in saturation is pushed away, determine that identity matrix establishes transmitting antenna-gap marker matrix of module foundation
IndiactorACThe value of middle element, the power for pushing away saturation and push away saturation channel corresponding field intensity probe reading；
Conversion factor determining module：Each channel pair for calculating each transmitting antenna for having completed to push away operated in saturation
The conversion factor of the transmission power and field strength answered；
Minimum and maximum conversion factor determining module：It is right for the result of calculation according to the conversion factor determining module
The conversion factor that each transmitting antenna corresponds to each channel is compared, and determines wherein numerical value minimum and maximum conversion factor, note
Minimum for the antenna and maximum conversion factor；
Minimum and maximum field intensity value determining module：Minimum for each transmitting antenna of gained and maximum conversion factor, with
And the antenna push away when saturation the power of all corresponding channels and, calculate all channels of the corresponding transponder of each transmitting antenna push away it is full
With when minimum and maximum field intensity value；
Field strength estimates module：When for pushing away saturation according to the corresponding all channels of transponder of each transmitting antenna of gained most
Small and maximum field intensity values, estimate the minimum and maximum field strength at star catalogue equipment when the corresponding all channels of all antennas push away saturation
Value.
Embodiment：
Certain telecommunication satellite has five width transponder transmitting antennas, is pushed away for assessment transponder after being saturated to one control device of star catalogue
Electromagnetic radiation, the corresponding Part way of five width transponder transmitting antennas is pushed away into saturation, corresponding transponder saturation power
It is as shown in the table with the field strength that monitors.
Method through the invention, which is estimated to obtain the corresponding all accesses of transponder of five width transponder transmitting antennas, pushes away saturation
Afterwards, the minimum 30.3V/m of electric field strength at the star catalogue control device, is up to 31.7V/m.The method of the present invention and system both solved
The problem of test of having determined cannot directly obtain real data, and solve disengaging test data and be completely dependent on simulation result and bring
Accuracy is low, the low and high-cost problem of efficiency.
The content category ability that description in the present invention is not described in detail is in the known technology of technical staff.
Claims (10)
1. a kind of telecommunication satellite star catalogue equipment field strength predictor method, it is characterised in that including：
(1) transmitting antenna-gap marker matrix Indiactor is establishedAC
(2) it according to constraint of saturation condition is pushed away, to the passage portion of transponder, carries out pushing away operated in saturation successively one by one；
(3) operated in saturation is pushed away according to what step (2) carried out, determines the transmitting antenna-gap marker matrix IndiactorACIn
The value of element, the power for pushing away saturation and push away saturation channel corresponding field intensity probe reading；
(4) the corresponding transmission power in each channel of each transmitting antenna and the changing for field strength for having completed to push away operated in saturation are calculated
Calculate the factor；
(5) conversion factor that each channel is corresponded to each transmitting antenna is compared, and determines that wherein numerical value minimum is changed with maximum
The factor is calculated, the minimum of the antenna and maximum conversion factor are denoted as；
(6) all correspondences when saturation are pushed away with maximum conversion factor and the antenna according to the minimum of each transmitting antenna obtained by (5)
The power in channel and, calculate minimum and maximum field intensity value when all channels of the corresponding transponder of each transmitting antenna push away saturation；
(7) minimum and maximum field intensity values when saturation are pushed away according to the corresponding all channels of transponder of each transmitting antenna obtained by (6),
Estimate the minimum and maximum field intensity value at star catalogue equipment when the corresponding all channels of all antennas push away saturation.
2. a kind of telecommunication satellite star catalogue equipment field strength predictor method according to claim 1, it is characterised in that：The transmitting
Antenna-gap marker matrix IndiactorACSpecially：
Wherein IXiIndicate whether corresponding i-th of the channel of transmitting antenna that number is X has pushed away saturation, if having pushed away saturation,
Then IXi=1, otherwise IXi=0；If the channel is not present, IXi=0；X=1 ..., N, N are all hairs of transponder being arranged on star
Penetrate the quantity of antenna；I=1 ..., N ', N ' are the largest passages sum that all transmitting antennas correspond to transponder.
3. a kind of telecommunication satellite star catalogue equipment field strength predictor method according to claim 1, it is characterised in that：It is described push away it is full
Include with constraints：
(a) passage portion of the selected transponder covers all transmitting antennas；
(b) it will again be carried out after back-off after pushing away saturation next only there are one the operation that channel push away saturation each time
Channel pushes away the operation of saturation；
(c) during each transmitting antenna corresponding channel pushes away saturation, transmitting antenna itself and transmitting antenna and use are kept
It is constant in the relative position for measuring the field intensity probe of field strength at star catalogue equipment.
4. a kind of telecommunication satellite star catalogue equipment field strength predictor method according to claim 1, it is characterised in that：The step
(2) pushing away operated in saturation refers to：Transponder input signal power is adjusted to saturation power state.
5. a kind of telecommunication satellite star catalogue equipment field strength predictor method according to claim 1, it is characterised in that：The step
(4) calculate completed to push away operated in saturation each transmitting antenna the corresponding transmission power in each channel and field strength conversion because
Son, specially：
Wherein, FXiFor the transmission power in the transmitting antenna channel and the conversion factor of field strength；
Xi is the channel number for pushing away saturation；X=1 ..., N；N is all transmitting antenna sums of transponder；I=1 ..., N '；N ' is
The transmitting antenna corresponds to the total number of channels of transponder；
EXiThe reading of field intensity probe after saturation is pushed away for the channel；
PXiThe power in saturation channel, I are pushed away for thisXiWhen=0, PXi=0.
6. a kind of telecommunication satellite star catalogue equipment field strength predictor method according to claim 1, it is characterised in that：The step
(6) minimum and maximum field intensity value when the corresponding all channels of transponder of each transmitting antenna push away saturation is calculated, specially：
Wherein, FXminWith FXmaxIt is minimum and maximum conversion factor；EXminWith EXmaxIt is full to be that corresponding all channels of each antenna push away
With when minimum with maximum field intensity values；Be power when the corresponding all channels of the antenna push away saturation and.
7. a kind of telecommunication satellite star catalogue equipment field strength predictor method according to claim 1, it is characterised in that：The step
(7) the minimum and maximum field intensity value at star catalogue equipment when the corresponding all channels of all antennas push away saturation is estimated, specially：
Wherein, EminWith EmaxIt is minimum and maximum when the corresponding all channels of all antennas of transponder push away saturation at star catalogue equipment
Field intensity value.
8. a kind of telecommunication satellite star catalogue equipment field strength predictor method according to claim 1, it is characterised in that：The field strength
Probe is arranged at star catalogue equipment.
9. a kind of telecommunication satellite star catalogue equipment field strength Prediction System, it is characterised in that including：
Identity matrix establishes module：For establishing transmitting antenna-gap marker matrix IndiactorAC；
Push away saturation block：For according to constraint of saturation condition is pushed away, to the passage portion of transponder, carrying out pushing away saturation behaviour successively one by one
Make, and then according to operated in saturation is pushed away, determines that identity matrix establishes transmitting antenna-gap marker matrix of module foundation
IndiactorACThe value of middle element, the power for pushing away saturation and push away saturation channel corresponding field intensity probe reading；
Conversion factor determining module：Each channel for calculating each transmitting antenna for having completed to push away operated in saturation is corresponding
The conversion factor of transmission power and field strength；
Minimum and maximum conversion factor determining module：For the result of calculation according to the conversion factor determining module, to each
The conversion factor that transmitting antenna corresponds to each channel is compared, and is determined wherein numerical value minimum and maximum conversion factor, is denoted as this
The minimum of antenna and maximum conversion factor；
Minimum and maximum field intensity value determining module：Minimum for each transmitting antenna of gained and maximum conversion factor, and should
Antenna push away when saturation the power of all corresponding channels and, when calculating all channels of the corresponding transponder of each transmitting antenna and pushing away saturation
Minimum and maximum field intensity value；
Field strength estimates module：Minimum when for pushing away saturation according to the corresponding all channels of transponder of each transmitting antenna of gained with
Maximum field intensity values estimate the minimum and maximum field intensity value at star catalogue equipment when the corresponding all channels of all antennas push away saturation.
10. a kind of telecommunication satellite star catalogue equipment field strength Prediction System according to claim 9, it is characterised in that：The hair
Penetrate antenna-gap marker matrix IndiactorACSpecially：
Wherein IXiIndicate whether corresponding i-th of the channel of transmitting antenna that number is X has pushed away saturation, if having pushed away saturation,
Then IXi=1, otherwise IXi=0；If the channel is not present, IXi=0；X=1 ..., N, N are all hairs of transponder being arranged on star
Penetrate the quantity of antenna；I=1 ..., N ', N ' are the largest passages sum that all transmitting antennas correspond to transponder；
The constraint of saturation condition that pushes away includes：
(a) passage portion of the selected transponder covers all transmitting antennas；
(b) it will again be carried out after back-off after pushing away saturation next only there are one the operation that channel push away saturation each time
Channel pushes away the operation of saturation；
(c) during each transmitting antenna corresponding channel pushes away saturation, transmitting antenna itself and transmitting antenna and use are kept
It is constant in the relative position for measuring the field intensity probe of field strength at star catalogue equipment；
The each channel corresponding transmission power and field strength for calculating each transmitting antenna for having completed to push away operated in saturation
Conversion factor, specially：
Wherein, FXiFor the transmission power in the transmitting antenna channel and the conversion factor of field strength；
Xi is the channel number for pushing away saturation；X=1 ..., N；N is all transmitting antenna sums of transponder；I=1 ..., N '；N ' is
The transmitting antenna corresponds to the total number of channels of transponder；
EXiThe reading of field intensity probe after saturation is pushed away for the channel；
PXiThe power in saturation channel, I are pushed away for thisXiWhen=0, PXi=0；
The step calculates minimum and maximum field intensity value when all channels of the corresponding transponder of each transmitting antenna push away saturation, tool
Body is：
Wherein, FXminWith FXmaxIt is minimum and maximum conversion factor；EXminWith EXmaxIt is full to be that corresponding all channels of each antenna push away
With when minimum with maximum field intensity values；Be power when the corresponding all channels of the antenna push away saturation and；
The minimum and maximum field intensity value estimated when the corresponding all channels of all antennas push away saturation at star catalogue equipment, specifically
For：
Wherein, EminWith EmaxIt is minimum and maximum when the corresponding all channels of all antennas of transponder push away saturation at star catalogue equipment
Field intensity value.
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|---|---|
| CN108631859B (en) | 2020-11-20 |
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