Improving PSI processing of mining induced large deformations with external models
| Autor: | Du, Sen, Mallorquí Franquet, Jordi Joan, Fan, Hongdong |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Doctorat en Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| Popis: | The surface deformation caused by coal mining may cause various geological disasters. Many scholars use for mine monitoring Persistent Scatterer Interferometry (PSI) combined with external models to compensate the phase wrapping when strong gradient deformations are present. In this paper, a method to increase the accuracy of the external model adjustment is presented. The evaluation is carried out by comparing the modeless conventional PSI approach and the proposed method. The results show that the proposed method could better retrieve non-linear deformation. The comparison of PSI results with in-situ leveling data shows that the error on the deformation time-series is reduced by 35.3%. This work has been financially supported by China Scholarship Council (Grant No. 201806420035), the Spanish Ministry of Economy, Industry and Competitiveness (MINECO), the State Research Agency (AEI), the European Funds for Regional Development (EFRD) under project TEC2017-85244-C2-2-P and the CommSensLab. CommSensLab is Unidad de Excelencia Maria de Maeztu MDM-2016-0600 financed by the Agencia Estatal de Investigación, Spain. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|