CN106156472A - A kind of remote sensing satellite covering power over the ground analyzes method - Google Patents
A kind of remote sensing satellite covering power over the ground analyzes method Download PDFInfo
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- CN106156472A CN106156472A CN201510185733.1A CN201510185733A CN106156472A CN 106156472 A CN106156472 A CN 106156472A CN 201510185733 A CN201510185733 A CN 201510185733A CN 106156472 A CN106156472 A CN 106156472A
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Abstract
A kind of space remote sensing satellite covering power over the ground towards arbitrary shape polygon administrative region analyzes method.Cannot improve on the basis of any administrative region of covering analyzing in original conventional mesh point method, by the algorithm after improving, go for the administrative region of arbitrary shape.The present invention changes target area scope into polygon administrative region, and is no longer the longitude and latitude scope of rectangular shape；Target area stress and strain model adds and judges that whether grid is at the algorithm within administrative region；Pass by covering analyzing at satellite, threshold value is set, add discontinuous judgement of passing by；Covering tuple figure, visual means such as redrawing figure of passing by is added in quality overview display covering.It is that later remote sensing satellite covers over the ground and provides more favorable application foundation by the method for covering analyzing over the ground of the present invention.
Description
Technical field
The present invention relates to space remote sensing satellite fields, espespecially a kind of remote sensing satellite covering power over the ground
Analysis field.
Background technology
Along with developing rapidly of space technology, the quantity of remote sensing satellite gets more and more in the world, distant
The sense satellite data application in each field is wider, but, according to " world is planned as a whole, assisted
With build " thought, the ecology potential of space remote sensing satellite system must to ground system and application system
The construction of system is had higher requirement, build the many extensive and ground system of disposal ability and
Application system becomes the problem needed demonstration badly and solve.Space remote sensing satellite covering power over the ground
Analyze effective way and the method for this problem of solving just, in the early stage of satellite launch to satellite
Covering power effectively analyze and assess and can predict the data acquisition scale of satellite, product
Kind, specification and ageing, provide sufficient foundation for ground system and the application system construction index.
But, traditional satellite covering power analytic method and numerical computations fado exist computational accuracy the highest,
Take that computer resource is big, cannot calculate repeatedly to pass by and record overlapping and multiple satellite and run simultaneously
To shortcomings such as same target area covering analyzings, particularly can not meet for specific administrative region
Carry out the application demand of covering analyzing, also thus result in the massive losses of time and economic aspect.
Summary of the invention
Space remote sensing satellite cannot be met for existing user task target area is carried out quick essence
The really problem of covering analyzing, the invention provides a kind of can be for the net of arbitrary shape administrative region
Lattice covering analyzing method.The method, under the plane map projected coordinate system of the whole world, utilizes space number
According to treatment technology, according to certain yardstick, target area polygon is divided, form target
Region overlay analyzes grid, and then the grid that ground is covered by calculating satellite arbitrary moment of passing by
Number, it is achieved the accurate covering analyzing to target administrative region, solves conventional mesh cladding process
Factor data and algorithmic issue can only be to rectangular target areas covering analyzings in the range of specific longitude and latitude
Bottleneck and drawback.
The present invention proposes a kind of remote sensing satellite covering power over the ground and analyzes method, it is characterised in that
Comprise the following steps:
A. target administrative region polygon is built；
B. described target administrative region is carried out stress and strain model；
C. carry out satellite to pass by covering power analysis；
D. quality overview display is covered.
Further, it is characterised in that the object of covering power analysis is that arbitrary shape polygon is administrative
Region.
Further, it is characterised in that step a is particularly as follows: collect polygon longitude and latitude point set
Longitude and latitude point set (lat, lon) data are converted into planar complete by (lat, lon) data
Under ball map coordinates system (x, y) numerical value, according to clockwise or counterclockwise by polygon
(x, y) point set conspires to create mutual disconnected closed polygon.
Further, it is characterised in that step b: build territory, target line administrative division boundary rectangle Intranet
Lattice, judge one by one by grid in the boundary rectangle of territory, target line administrative division, filter out and belong to target administration
Grid in region.
Further, it is characterised in that step c is particularly as follows: set up plane base map right angle, the whole world and sit
Mark system, by fabric width two spot projection to coordinate system, sets up linear equation, by judging and straight line
The grid belonging to target administrative region intersected is to judge the grid that the instantaneous fabric width of satellite is inswept.
Further, it is characterised in that judge satellite pass by every time to target area cover process
In whether continuous, process as discontinuously then arranged threshold value.
Further, it is characterised in that step d is: make use of covering tuple figure, passing by redraws
Figure carries out visual presentation.
Further, it is characterised in that described covering tuple figure is used for distinguishing in target administrative region
The degree of covering of different piece, described in pass by and redraw figure for redrawing all previous passing by.
The present invention has the advantage that based on administrative region remote sensing satellite covering analyzing method over the ground
1, broken in the range of conventional mesh point cladding process can only analyze certain rectangle longitude and latitude and covered spy
Property limitation, any administrative region coverage property can be analyzed, range of application and suitable
More extensive by situation.
2, whole world plane base map rectangular coordinate system is set up by map projection, by fabric width two spot projection
In coordinate system, set up linear equation, by judging that the grid with straight line intersection covers
Judgement, complicated latitude and longitude value is converted for the ranks number under plane right-angle coordinate, meter
Calculate and judge more convenient, improve speed and the efficiency of covering analyzing.
3, the target area coverage property visualization of number of ways presents, and more single than tradition is overall
Cover ratio more directly perceived.
4, report generation, coverage property form be generated as ground system and the application system construction person
Foundation is provided.
Accompanying drawing explanation
Fig. 1 remote sensing satellite based on administrative region covering analyzing flow chart over the ground
Fig. 2 target line administrative division is overseas connects rectangle net trrellis diagram (as a example by china administration region)
Fig. 3 is target administrative region grid chart (as a example by china administration region)
Fig. 4 satellite passes by and covers display figure in real time
Fig. 5 satellite passes by instantaneous Covering judgment figure
Fig. 6 covers tuple figure
Detailed description of the invention
The space remote sensing satellite covering power over the ground towards administrative region of the present invention analyzes method bag
Include structure target administrative region polygon polygon, target area stress and strain model, satellite pass by
Covering analyzing and covering quality overview display.
Further, described structure target administrative region polygon polygon, including polygon warp
Longitude and latitude point set (lat, lon) data are converted by latitude point set (lat, lon) data collection
For under planar global map coordinate system (x, y) numerical value, according to clockwise or counterclockwise
By polygon, (x, y) point set conspires to create mutual disconnected closed polygon polygon in direction.
Further, described target area stress and strain model, including building, target line administrative division is overseas connects square
Grid in shape, judges grid in the boundary rectangle of territory, target line administrative division one by one, filters out and belong to mesh
Grid in mark administrative region.
Further, described satellite passes by covering analyzing, sits including setting up plane base map right angle, the whole world
Mark system, by fabric width two spot projection to coordinate system, sets up linear equation, by judging and straight line
Intersect the grid belonging to target administrative region to judge the grid that the instantaneous fabric width of satellite is inswept,
And pass by disruption by setting threshold process.
Further, described covering quality overview display, including cover tuple figure, pass by redraw figure,
Coverage property forms etc., coverage property form is the two-dimemsional number that every satellite represents coverage property
Group carries out real-time or non real-time statistical analysis, and by every satellite in mixed mulch characteristic in emulation
Pass by region number of times, beginning and ending time, last and add up to last and the index such as percentage of coverage
Quantify display.
As it is shown in figure 1, the method for the present invention needs structure target administrative region polygon in force
Shape polygon, target area stress and strain model, satellite pass by covering analyzing and cover quality comprehensive
Show four steps.
Collect target line administrative division numeric field data to be received by data file or self-defined two ways
Collection.Data file i.e. has SHP file or the KML file etc. of zone boundary, can directly read
Take these files to use, it is also possible to be processed as required to the data of these files
Use again after data.Self-defined mode the most manually takes all of target administrative region
Boundary point or the mode being manually entered are collected, and store.Build target administrative region polygon
Polygon is exactly that longitude and latitude point set (lat, the lon) data collected are converted into planar
Under global map coordinate system (x, y) numerical value, according to clockwise or counterclockwise by polygon
(x, y) point set conspires to create mutual disconnected closed polygon polygon to shape.
As it is shown on figure 3, target area stress and strain model, the institute to target line political affairs region of out bound rectangle
There is grid as in figure 2 it is shown, be circulated judgement, if several in target administrative region of grid
Mutual disjunct region is inside any one, then arrange this grid is masked as true, if
This grid the most not in mutual disjunct region, then arranges this grid and is masked as fasle.Finally
By being set to all grid drawings of true out, it is the grid of target administrative region.
As shown in Figure 4, satellite passes by real-time covering analyzing, straight by setting up whole world plane base map
Angle coordinate system, if the upper left corner is initial point (0,0), as it is shown in figure 5, arrived by fabric width two spot projection
In coordinate system, set up linear equation, when the grid of straight line with target administrative region intersects (from
The left point of fabric width judges to right point to intersect the identifying whether as in target administrative region of grid successively
Grid), beginning of the most once passing by, after step-length several times, satellite fabric width over the ground does not covers
Cover any grid and then represent end of this time passing by.If for the such target of longitude and latitude scope
Region, then do not have problem, but for arbitrary shape polygonal target administrative region,
Then need to process the problem of the process discontinuous coverage lattice that once pass by, be now accomplished by setting one
Individual threshold value, in threshold range, discontinuous coverage lattice still believe that as with once passing by.Threshold value
Select according to the size of target area and the step-length of satellite.
Covering quality overview display utilizes coverage property table, covering tuple figure etc. to carry out visualization exhibition
Show.Satellite is repeatedly passed by record coverage property by coverage property table visual presentation out.
As shown in Figure 6, by satellite to target administrative region Multi folds coverage situation by Multi folds coverage figure,
Difference according to color distinguishes degree of covering visual presentation out.By all previous covering feelings of passing by
Condition, is passed by record by click, repaints the mulching method that this time passes by the coverage diagram that passes by
Visual presentation is out.
Above example, is only technical characteristic and the embodiment of the explanation present invention, its objective is
Will appreciate that present disclosure in making person skilled in art and be embodied as.Thus, all
Conversion that design according to the present invention is made and modification, be all contained in the claim model of the present invention
In enclosing, file an application according to Patent Law.
Claims (8)
1. a remote sensing satellite covering power over the ground analyzes method, it is characterised in that include following
Step:
A. target administrative region polygon is built；
B. described target administrative region is carried out stress and strain model；
C. carry out satellite to pass by covering power analysis；
D. quality overview display is covered.
2. the method for claim 1, it is characterised in that the object of covering power analysis is
Arbitrary shape polygon administrative region.
3. the method for claim 1, it is characterised in that step a is particularly as follows: collect
Polygon longitude and latitude point set (lat, lon) data, by longitude and latitude point set (lat, lon) data
Be converted under planar global map coordinate system (x, y) numerical value, according to clockwise or inverse
By polygon, (x, y) point set conspires to create mutual disconnected closed polygon to clockwise.
4. the method for claim 1, it is characterised in that step b: build target line
Grid in the boundary rectangle of territory, administrative division, judges one by one by grid in the boundary rectangle of territory, target line administrative division,
Filter out the grid belonged in target administrative region.
5. the method for claim 1, it is characterised in that step c is particularly as follows: set up
Whole world plane base map rectangular coordinate system, by fabric width two spot projection to coordinate system, sets up straight line side
Journey, by judging that the grid belonging to target administrative region with straight line intersection judges that satellite is instantaneous
The grid that fabric width is inswept.
6. method as claimed in claim 5, it is characterised in that judge that satellite passes by every time right
Target area is the most continuous during covering, and processes as discontinuously then arranged threshold value.
7. the method for claim 1, it is characterised in that step d is: make use of and covers
Lid tuple figure, passing by redraws figure and carries out visual presentation.
8. method as claimed in claim 7, it is characterised in that described covering tuple figure is used for
Distinguish the degree of covering of different piece in target administrative region, described in pass by and redraw figure for redrawing
All previous pass by.
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| CN201510185733.1A CN106156472A (en) | 2015-04-20 | 2015-04-20 | A kind of remote sensing satellite covering power over the ground analyzes method |
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Cited By (3)
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| CN106248346A (en) * | 2015-06-12 | 2016-12-21 | 中国科学院遥感与数字地球研究所 | A kind of high accuracy remote sensing satellite covering analyzing method over the ground based on geometric topology |
| CN107860400A (en) * | 2017-09-22 | 2018-03-30 | 上海卫星工程研究所 | Remote sensing satellite image positions whole star Synthetical Optimization and analysis method |
| CN109145835A (en) * | 2018-08-28 | 2019-01-04 | 中国人民解放军63789部队 | Quick calculation method of the satellite in orbit to specific region target observation |
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| CN106248346A (en) * | 2015-06-12 | 2016-12-21 | 中国科学院遥感与数字地球研究所 | A kind of high accuracy remote sensing satellite covering analyzing method over the ground based on geometric topology |
| CN107860400A (en) * | 2017-09-22 | 2018-03-30 | 上海卫星工程研究所 | Remote sensing satellite image positions whole star Synthetical Optimization and analysis method |
| CN107860400B (en) * | 2017-09-22 | 2021-03-09 | 上海卫星工程研究所 | Whole-satellite-level comprehensive optimization design and analysis method for remote sensing satellite image positioning |
| CN109145835A (en) * | 2018-08-28 | 2019-01-04 | 中国人民解放军63789部队 | Quick calculation method of the satellite in orbit to specific region target observation |
| CN109145835B (en) * | 2018-08-28 | 2021-06-08 | 中国人民解放军63789部队 | Rapid calculation method for observing specific region target by on-orbit satellite |
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