High-precision settlement monitoring method and device for SAR data

A settlement monitoring, high-precision technology, applied in the field of data processing, can solve the problems of low monitoring accuracy of linear deformation information, and achieve the effect of solving low monitoring accuracy

Inactive Publication Date: 2020-12-04
BEIJING AEROSPACE HONGTU INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a high-precision settlement monitoring method and device for SAR data, so as to alleviate the low monitoring accuracy of the existing settlement monitoring method for SAR data to the linear deformation information of the monitoring area. question

Method used

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  • High-precision settlement monitoring method and device for SAR data
  • High-precision settlement monitoring method and device for SAR data
  • High-precision settlement monitoring method and device for SAR data

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Embodiment 1

[0026] According to an embodiment of the present invention, an embodiment of a method for high-precision settlement monitoring of SAR data is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be implemented in a computer system such as a set of computer-executable instructions and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0027] figure 1 It is a flow chart of a high-precision settlement monitoring method for SAR data according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0028] Step S102, obtaining the SAR data to be processed input by the user, wherein the SAR data to be processed is SAR data in TOPS mode;

[0029] Step S104, performing high-precision registration processing on the SAR data to be processed to obtain multi-view...

Embodiment 2

[0095] The embodiment of the present invention also provides a high-precision settlement monitoring device for SAR data. The high-precision settlement monitoring device for SAR data is used to implement the high-precision settlement monitoring method for SAR data provided in the above-mentioned content of the embodiment of the present invention. The following is The specific introduction of the high-precision settlement monitoring device for SAR data provided by the embodiment of the present invention.

[0096] Such as image 3 as shown, image 3 It is a schematic diagram of the above-mentioned high-precision settlement monitoring device for SAR data. The high-precision settlement monitoring for SAR data includes: an acquisition unit 10 , a registration unit 20 , a first determination unit 30 , a second determination unit 40 and a processing unit 50 .

[0097] The acquisition unit 10 is configured to acquire the SAR data to be processed input by the user, wherein the SAR data...

Embodiment 3

[0104] An embodiment of the present invention also provides an electronic device, including a memory and a processor, the memory is used to store a program that supports the processor to execute the method described in the first embodiment above, and the processor is configured to execute the program stored in memory.

[0105] see Figure 4 , the embodiment of the present invention also provides an electronic device 100, including: a processor 60, a memory 61, a bus 62 and a communication interface 63, the processor 60, the communication interface 63 and the memory 61 are connected through the bus 62; An executable module, such as a computer program, stored in the execution memory 61 .

[0106] Wherein, the memory 61 may include a high-speed random access memory (RAM, Random Access Memory), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection between the system network element and at least one other ...

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Abstract

The invention provides a high-precision settlement monitoring method and device for SAR data, and relates to the technical field of data processing. The method comprises the steps: obtaining to-be-processed SAR data inputted by a user, and enabling the to-be-processed SAR data to be SAR data in a TOPS mode; performing high-precision registration processing on the to-be-processed SAR data to obtaina multi-scene image; determining a pre-selected point of a scatterer of the multi-scene image by utilizing an amplitude deviation threshold algorithm; performing phase correction processing on the pre-selected point to obtain a target preset point, and determining a target scatterer by using the target preset point; and performing phase unwrapping processing and atmosphere and orbit correction processing sequentially on the target scatterer to obtain linear deformation information of the area corresponding to the to-be-processed SAR data. The technical problem that an existing SAR data settlement monitoring method is low in monitoring precision of the linear deformation information of the monitoring area is solved.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a high-precision settlement monitoring method and device for SAR data. Background technique [0002] In the prior art, "A Method for Estimating Azimuth Offset with Enhanced Spectrum Diversity Based on Double Samples" (Application No.: CN201910597877.6) is disclosed. Geometric registration of wide-format image stacks to obtain single-view complex image stacks, using the prior statistical characteristics of gamma distribution to extract homogeneous pixels in the beam overlapping area under TOPS imaging mode; using double samples to extract homogeneous images Accurate coherence estimation of overlapping beams; use the overlapping area of ​​the adjacent beams of the main and auxiliary images to obtain the interferogram, and continue to perform complex conjugation on the generated two interferograms to obtain the enhanced spectral diversity azimuth offset; use the calculated ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/90G01S7/41G01C5/00
CPCG01C5/00G01S7/418G01S13/90G01S13/9094
Inventor 王宇翔吴岳廖通逵路聚峰付姣
Owner BEIJING AEROSPACE HONGTU INFORMATION TECH
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