Systematic model and errors analysis for distributed satellites SAR system based on three-dimensional reconstruction model

doi:10.7523/j.issn.2095-6134.2011.4.010

›› 2011, Vol. 28 ›› Issue (4): 489-497.DOI: 10.7523/j.issn.2095-6134.2011.4.010

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Systematic model and errors analysis for distributed satellites SAR system based on three-dimensional reconstruction model

Hu Ji-Wei^1,2,3, HONG Jun^1,2

1. Key Laboratory of Spatial Information Processing and Application System Technology, Chinese Academy of Sciences, Beijing 100190, China;
2. Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;
3. Graduate University, Chinese Academy of Sciences, Beijing 100049, China

Received:2010-07-23 Revised:2010-11-12 Online:2011-07-15

Abstract

Abstract:

We analyse the systematic model and working principle of distributed satellites SAR system based on three-dimensional reconstruction principle of InSAR system and present a complete closed-form solution to the three-dimensional geo-location of targets. Meanwhile we analyse the main error sources, baseline error and interferometric phase error, which influence the precision of digital elevation models (DEM) acquisition. Finally, simulations are made for analyses of the characteristics of baseline error and interferometric phase error, which provides a basis for calibration and correction of systematic parameters.

Key words: distributed satellites, three-dimensional reconstruction, baseline error, interferometric phase error

CLC Number:

TN957.5

Hu Ji-Wei, HONG Jun. Systematic model and errors analysis for distributed satellites SAR system based on three-dimensional reconstruction model[J]. , 2011, 28(4): 489-497.

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Systematic model and errors analysis for distributed satellites SAR system based on three-dimensional reconstruction model

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