1 Utilization of Parallelization Algorithms in Insar / Ps - Insar Processing

نویسندگان

  • Petar S. Marinkovic
  • Ramon F. Hanssen
  • Bert M. Kampes
چکیده

This study describes a method for InSAR/PS-InSAR processing using parallelization algorithms. The InSAR/PS-InSAR processing chain is analyzed from the aspect of the computational load, which results in a specific parallelization model. The theoretical concept for the porting of Delft Object-oriented Radar Interferometric Software (Doris) into a parallel computational environment is described. The features of the presented parallelization model include efficient interprocessor communications utilized by MPI (Multi Passage Interface) and a “chained” data distribution capability. An example of the mapping process is illustrated for the case of simple InSAR processing.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Characterization of Landslide Deformations in Three Gorges Area Using Multiple InSAR Data Stacks

In the areas with steep topography and vulnerable geological condition, landslide deformation monitoring is an important task for risk assessment and management. Differential Synthetic-Aperture Radar interferometry (D-InSAR) and Persistent Scatterer Interferometry (PS-InSAR) are two advanced SAR Interferometry techniques for detection, analysis and monitoring of slow moving landslides. The tech...

متن کامل

Web-based Framework for Ps-insar Data Interpretation Assisted by Geo-spatial Information Fusion

This study investigates the options of information mining to enhance interpretation of PS-InSAR results of land subsidence analysis. Persistent Scatterer (PS) Interferometric Synthetic Aperture Radar (InSAR) is one of the latest applications of SAR time series data analysis. The detection of coherent point target measurements i.e, persistent scatterers gives an opportunity of measuring sub-cm d...

متن کامل

InSAR Phase Unwrapping by Transforming Sparce Data into a Regular Space

Phase unwrapping is one of the most important parts of InSAR techniques. In order to estimate the grand surface displacements, interferomtric phases modulated between 0 to 2π must be unwrapped. Based on the use of either the conventional method or persistent scatterer (PS), phases will be spread both regularly and irregularly. The phases of PSs can be unwrapped by reducing phases into a regular...

متن کامل

Multi-track Ps-insar: Datum Connection and Reliability Assessment

InSAR data acquired from independent overlapping tracks can be exploited for a reliability assessment of the Persistent Scatterer InSAR (PS-InSAR) technique. Here we present a mathematical framework for the datum connection of multiple tracks, simultaneously evaluating the precision and reliability of PS-InSAR estimates. This datum connection can be subdivided in two steps. Firstly, the PS loca...

متن کامل

Developing High Resolution Atmospheric Phase Screens for Insar Time Series Analysis

The atmospheric artifacts in interferometric synthetic aperture radar (InSAR) measurements are a large error source in accurately estimating terrain deformation signals [1]. For example, the large magnitude, high spatial frequency atmospheric bubbles can easily be misinterpreted as deformation phenomena [2, 3]. Various InSAR time series techniques, such as the Permanent Scatterer (PS) and Small...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004