Long sequence automatic interferometry system and method

A technology of interferometric measurement and timing, which is applied in the direction of radio wave measurement system, measurement device, radio wave reflection/reradiation, etc. It can solve problems such as lack of parallelism, batch processing capability, automatic processing capability, and large learning cost. , to achieve the effect of realizing high efficiency, lowering the threshold of use, and improving processing efficiency

Active Publication Date: 2018-08-14
中科卫星应用德清研究院 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these existing software systems have the following problems: most of them are expert systems, which require a lot of learning costs; do not hav

Method used

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  • Long sequence automatic interferometry system and method
  • Long sequence automatic interferometry system and method
  • Long sequence automatic interferometry system and method

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Embodiment 1

[0063] The invention provides a long-sequence automatic interferometric measurement system, which can be used for long-sequence automatic differential interferometric measurement of surface deformation. This system can be developed using the powerful Python language with many rich standard libraries, which can be applied to the processing of various spaceborne SAR data at home and abroad, and users can view the data information and image information during the processing at any time. figure 1 The module block diagram of the long time series automatic interferometry system provided by the present invention. Such as figure 1 As shown, the system provided by the present invention includes: a memory, an instruction acquisition module, a data preparation module and an automatic processing module;

[0064] The memory is used to store original SAR data and generate product data; the generated product data includes atmospheric phase analysis diagrams, residual terrain phase analysis ...

Embodiment 2

[0091] The invention provides a long-sequence automatic interference measurement method, which can be used for efficient analysis and processing of SAR data. image 3 The flow chart of the long-sequence automatic interferometry method provided by the present invention. Such as image 3 As shown, the method includes:

[0092] Step S101: Obtain the catalog location of the original SAR data, the catalog location of the generated product, and the latitude and longitude range of the target area.

[0093] Step S102: Obtain the original SAR data from the directory location of the original SAR data; the original SAR data includes SAR image data, imaging parameter data, orbit data, spatial data, time data and so on.

[0094] Step S103: The web crawler obtains part of the data, and the part of the data includes orbit data. After obtaining the orbit data through the web crawler, it automatically updates the orbit data in the original SAR data; updating the orbit data can improve the or...

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Abstract

The invention discloses a long sequence automatic interferometry system and method, including a storage, an instruction acquisition module, a data preparation module and an automatic processing module. The data preparation module includes a raw data acquisition module, a crawler module, a data format conversion module and a target area digital elevation model generation module. The automatic processing module includes a main image selection module, a registration resampling module, a permanent scatterer point extraction module, an optimal interference network generation module, an interferencefringe pattern generation module, a target interference fringes generation module and an analysis module. The long sequence automatic interferometry system and method can integrate differential interferometry and permanent scatterer processing, achieve the automatic processing of SAR data through standardized customization for a processing procedure, do not require manual intervention, do not require a complicated learning process when users use, are simple and convenient to operate and reduce threshold of the users. Meanwhile, the long sequence automatic interferometry system and method canachieve parallel computing of various phase analysis and achieve high efficiency in data processing.

Description

technical field [0001] The invention relates to the field of surface deformation monitoring, and more specifically, to a long-sequence automatic interferometric measurement system and method. Background technique [0002] The traditional technical means of surface deformation monitoring include leveling, GPS measurement, 3D laser scanning, and measuring robots. These traditional technical means have high measurement accuracy and sustainable monitoring, but the monitoring process is time-consuming and laborious and can only obtain deformation observation results at several independent points. The DInSAR (differential interferometry) and PSInSAR (permanent scatterer synthetic aperture radar interferometry) technologies are efficient and economical monitoring methods with high spatial resolution of images, and are capable of large-area high-density deformation monitoring. It has good application prospect and practical value in monitoring. [0003] DInSAR uses two interferomet...

Claims

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Application Information

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IPC IPC(8): G01S13/90G06F17/30
CPCG01S13/9023G06F16/9537
Inventor 谢酬邵芸王京田帮森卞小林
Owner 中科卫星应用德清研究院
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