CN201837388U - Vertical ground feature height measuring system based on single-chip InSAR (interferometric synthetic aperture radar) images - Google Patents
Vertical ground feature height measuring system based on single-chip InSAR (interferometric synthetic aperture radar) images Download PDFInfo
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- CN201837388U CN201837388U CN2010205804143U CN201020580414U CN201837388U CN 201837388 U CN201837388 U CN 201837388U CN 2010205804143 U CN2010205804143 U CN 2010205804143U CN 201020580414 U CN201020580414 U CN 201020580414U CN 201837388 U CN201837388 U CN 201837388U
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Abstract
The utility model discloses a vertical ground feature height measuring system based on single-chip InSAR (interferometric synthetic aperture radar) images, which comprises a data inputting device, a data processor, a ground feature height conversion module and a display unit. The data inputting device is used for inputting measurement parameters of an onboard InSAR system, the data processor analyzes single-chip InSAR images, which are measured by the onboard InSAR system, of vertical ground features and measures shadow width Lg or layerover width Lg1 of the single-chip InSAR images, the ground feature height conversion module calculates the height h of the ground features by the aid of a formula h = Lg sin theta cos theta or h = Lg 1 tan theta correspondingly according to an incidence angle theta in measurement parameters of the onboard InSAR system and measured shadow width Lg or layerover width Lg1, the display unit is connected with the data processor, and both the data inputting device and the ground feature height conversion module are connected with the data processor. The vertical ground feature height measuring system is reasonable in design, convenient in wiring, simple and convenient in use and operation and high in practical values, and can effectively resolve the problem of height measurement of vertical ground features of existing single-chip InSAR images.
Description
Technical field
The utility model belongs to the radar interference field of measuring technique, especially relates to a kind of vertical object height measuring system based on monolithic InSAR image.
Background technology
InSAR (Interferometric Synthetic Aperture Radar; Be called for short: the interferometer radar measurement) technology comes from the U.S., obtains constantly improving with ripe in American-European developed country, and its application is also constantly promoted.Country for the prosperity of InSAR technology, spatial information industrial technology company as the U.S. and Germany, with the Airborne High-resolution InSAR technology of practicability as a kind of new, advanced technological means, be used for topographic mapping, forest surveying, resource exploration and aspects such as environment drawing, geologic media and disaster monitoring, and along with the fast development of this technology, new application is also progressively being widened.
In recent years, radar interference was measured (InSAR) technology, particularly Airborne High-resolution InSAR technology as a kind of new, advanced technological means, had been applied to topographic mapping gradually.It is in the starting stage in China, and mainly in the development stage of airborne InSAR system, topographic mapping is then at the early-stage, presses for to carry out the applied research of Airborne High-resolution InSAR technology aspect topographic mapping for this reason.
Because the mapping based on monolithic InSAR image is different from stereoplotting, the height or the ratio that can not directly measure vertical atural object on image are high, need be by three-dimensional dem data or open-air artificial the measurement, and so, workload is bigger, operation process is more loaded down with trivial details.
As shown in Figure 1, during actual measurement, because the special side-looking imaging mechanism of monolithic InSAR image for the vertical atural object that exceeds the face of land, can produce shade and the folded phenomenon of covering.Wherein, shade is that radar beam can not arrive part, so this part does not have echo to turn back to radar antenna on the ground, thereby forms shade on image, and the image of shade is rendered as black.The length L of shade
gWith satisfy formula h=L between vertical object height h and the side view angle theta
gSin θ cos θ.Folded covering, be that radar beam arrives the time weak point of the time ratio of vertical atural object top A to vertical atural object bottom B, thereby the top image a of vertical atural object is recorded earlier, be recorded behind the image b of bottom, therefore the position of top image a and bottom image b is not same position (should be same point but actual conditions are orthogonal projection A and 2 of B) in monolithic InSAR image, thereby has produced L in monolithic InSAR image
G1Projection width, and L
G1There is following relation: h=L with the height h of vertical atural object
G1Tan θ.In a word, the height h of vertical atural object and the shade width L of its generation
gOr the folded width L that covers
G1Between all exist certain relation, Here it is based on the ultimate principle of the vertical object height of monolithic InSAR radiographic measurement system.
At present, the data acquisition system (DAS) that China adopts mainly is a digital photogrammetric measurement system, this system mainly is adapted to the data acquisition of stereogram, be not suitable for collection based on monolithic InSAR image, and can't from monolithic InSAR image, directly obtain for the height of vertical atural object, thereby need existing digital photogrammetric measurement system is carried out corresponding improvement, to adapt to the needs of monolithic InSAR image collection.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of vertical object height measuring system based on monolithic I nSAR image is provided, it is reasonable in design, easy-to-connect, use is easy and simple to handle and result of use good, practical value is high, can effectively solve the height problems of measurement of vertical atural object on the existing monolithic InSAR image.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of vertical object height measuring system based on monolithic InSAR image is characterized in that: comprise the measurement parameter that is used to import airborne InSAR system data input device, the monolithic InSAR image of the measured vertical atural object of described airborne InSAR system is analyzed and to existing shade width L on the described monolithic InSAR image
gOr the folded width L that covers
G1The data processor that measures, according to the incident angle θ in the described airborne InSAR systematic survey parameter with measure the shade width L draw
gOr the folded width L that covers
G1And the corresponding formula h=L that utilizes
gSin θ cos θ or h=L
G1Tan θ calculates the object height conversion module of height h of described vertical atural object and the display unit that joins with data processor, and described data input device and object height conversion module are all joined with data processor.
Above-mentioned vertical object height measuring system based on monolithic InSAR image is characterized in that: also comprise the data storage cell that joins with data processor.
Above-mentioned vertical object height measuring system based on monolithic InSAR image, it is characterized in that: described data input device is supervisory keyboard or data interface unit.
Above-mentioned vertical object height measuring system based on monolithic InSAR image, it is characterized in that: described data interface unit is a USB interface.
The utility model compared with prior art has the following advantages:
1, reasonable in design, circuit connection is convenient and input cost is low.
2, realize conveniently, do not need existing InSAR data acquisition system (DAS) is done any change, only need the utility model is attached on the basis of existing InSAR data acquisition system (DAS), can realize the purpose that vertical object height in the monolithic InSAR image is accurately measured.
3, use is easy and simple to handle, workload is few, in the actual mechanical process, the measurement parameter that only needs to import airborne InSAR system by data input device gets final product, data processor of the present utility model afterwards can call object height conversion module automatically and carry out comprehensive analysis processing, and finishes the purpose that vertical object height is accurately measured.
4, result of use is good and practical value is high, measurement data is accurate, the shade width L on the monolithic InSAR image that can utilization records out
gOr the folded width L that covers
G1, easy and more exactly the height of vertical atural object is measured, it can effectively solve the accurate problems of measurement of vertical object height on the existing monolithic InSAR image.Thereby the utility model is realizing fast, accurately gathering the height of vertical atural object or than in high, can effectively improve the mapping precision and the efficient of airborne InSAR system, realized the collection of the airborne InSAR monolithic InSAR of system image, can form the technical manual of gathering by the utility model, promote the business operation of InSAR technology based on monolithic InSAR image data.
In sum, the utility model is reasonable in design, easy-to-connect, use is easy and simple to handle and result of use good, practical value is high, can effectively solve the height problems of measurement of vertical atural object on the existing monolithic I NSAR image.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Side-looking image-forming principle synoptic diagram when Fig. 1 carries out actual measurement for the airborne InSAR of employing system to vertical atural object.
Fig. 2 is a principle of work block diagram of the present utility model.
Description of reference numerals:
The 1-data input device; The 2-data processor; 3-object height conversion module;
The 4-display unit; The 5-data storage cell.
Embodiment
As shown in Figure 2, the utility model comprise the measurement parameter that is used to import airborne InSAR system data input device 1, the monolithic InSAR image of the measured vertical atural object of described airborne InSAR system is analyzed and to existing shade width L on the described monolithic InSAR image
gOr the folded width L that covers
G1The data processor 2 that measures, according to the incident angle θ in the described airborne InSAR systematic survey parameter with measure the shade width L draw
gOr the folded width L that covers
G1And the corresponding formula h=L that utilizes
gSin θ cos θ or h=L
G1Tan θ calculates the object height conversion module 3 of height h of described vertical atural object and the display unit 4 that joins with data processor 2, and described data input device 1 and object height conversion module 3 are all joined with data processor 2.
Simultaneously, the utility model also comprises the data storage cell 5 that joins with data processor 2.In the present embodiment, described data input device 1 is supervisory keyboard or data interface unit.In the actual use, described data interface unit is a USB interface, also can select the data interface unit of other type simultaneously for use.
In the actual use, only need by data input device 1 import airborne InSAR system measurement parameter (as to as described in the incident angle θ of vertical atural object when measuring), just data processor 2 can measure the shade width L that draws on the monolithic InSAR image of the described vertical atural object that described airborne InSAR systematic survey obtains afterwards
gOr the folded width L that covers
G1, the module of object height conversion subsequently 3 is again according to incident angle θ that is imported and shade width L
gOr the folded width L that covers
G1And the corresponding formula h=L that utilizes
gSin θ cos θ or h=L
G1Tan θ calculates the height h of described vertical atural object, and the height h stores synchronized of the described vertical atural object that will calculate is undertaken synchronously, intuitively shown by display unit 4 simultaneously to data storage cell 5.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (4)
1. vertical object height measuring system based on monolithic InSAR image is characterized in that: comprise the measurement parameter that is used to import airborne InSAR system data input device (1), the monolithic InSAR image of the measured vertical atural object of described airborne InSAR system is analyzed and to existing shade width L on the described monolithic InSAR image
gOr the folded width L that covers
G1The data processor that measures (2), according to the incident angle θ in the described airborne InSAR systematic survey parameter with measure the shade width L draw
gOr the folded width L that covers
G1And the corresponding formula h=L that utilizes
gSin θ cos θ or h=L
G1Tan θ calculates the object height conversion module (3) of height h of described vertical atural object and the display unit (4) that joins with data processor (2), and described data input device (1) and object height conversion module (3) are all joined with data processor (2).
2. according to the described vertical object height measuring system of claim 1, it is characterized in that: also comprise the data storage cell (5) that joins with data processor (2) based on monolithic InSAR image.
3. according to claim 1 or 2 described vertical object height measuring systems based on monolithic InSAR image, it is characterized in that: described data input device (1) is supervisory keyboard or data interface unit.
4. according to the described vertical object height measuring system based on monolithic InSAR image of claim 3, it is characterized in that: described data interface unit is a USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205804143U CN201837388U (en) | 2010-10-26 | 2010-10-26 | Vertical ground feature height measuring system based on single-chip InSAR (interferometric synthetic aperture radar) images |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010205804143U CN201837388U (en) | 2010-10-26 | 2010-10-26 | Vertical ground feature height measuring system based on single-chip InSAR (interferometric synthetic aperture radar) images |
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| CN201837388U true CN201837388U (en) | 2011-05-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313537A (en) * | 2011-07-26 | 2012-01-11 | 中煤地航测遥感局有限公司 | Annotation method based on monolithic InSAR (interferometric synthetic aperture radar) orthophoto |
| CN108957454A (en) * | 2018-08-01 | 2018-12-07 | 中国科学院电子学研究所 | The interferometric phase emulation mode of airborne Interference synthetic aperture radar |
| CN111721268A (en) * | 2020-07-22 | 2020-09-29 | 河南大学 | Method and device for accurately inverting building height |
-
2010
- 2010-10-26 CN CN2010205804143U patent/CN201837388U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313537A (en) * | 2011-07-26 | 2012-01-11 | 中煤地航测遥感局有限公司 | Annotation method based on monolithic InSAR (interferometric synthetic aperture radar) orthophoto |
| CN108957454A (en) * | 2018-08-01 | 2018-12-07 | 中国科学院电子学研究所 | The interferometric phase emulation mode of airborne Interference synthetic aperture radar |
| CN111721268A (en) * | 2020-07-22 | 2020-09-29 | 河南大学 | Method and device for accurately inverting building height |
| CN111721268B (en) * | 2020-07-22 | 2021-09-07 | 河南大学 | Method and device for accurately inverting building height |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20151026 |
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| EXPY | Termination of patent right or utility model |