The operational dual-baseline phase unwrapping algorithm for the TanDEM-X mission is based on a combination of separate single-baseline phase unwrapping and a correction procedure of different levels of complexity. It benefits from all the information available from the two TanDEM-X acquisitions

Abstract: TanDEM-X is a mission, proposed in 2003 and now in Phase A (feasibility studies) by DLR and EADS Astrium. It is a SAR satellite formation built by the TerraSAR-X and another new TerraSAR-X like add-on satellite to enable single-pass SAR interferometry with variable baselines. The TanDEM-X

Abstract—In this paper, a method to solve the multichannel phase unwrapping problem is presented. MAP approach together with Markov Random Fields have proved to be effective, allowing to restore the uniqueness of the solution without introducing external constraints to regularize the problem

, commercial DEM production. Secondary mission goals of TanDEM-X are moving target indication with a distributed four aperture displaced phase centre system, the measurement of ocean currents and the detection of ice drift by along-track interferometry, high resolution SAR imaging based on a baseline induced

-based absolute and relative navigation and impulsive orbit and formation control. Daily formation maintenance maneuvers are performed by TanDEM-X to counterbalance natural and artificial disturbances. The paper elaborates on the routine flight dynamics operations and its interactions with mission planning

TanDEM-X is the first bistatic space borne SAR mission [1]. It is formed by adding a second, almost identical spacecraft to TerraSAR-X and flying them in a closely controlled formation with typical distances between 250 m and 500 m. The primary goal of the mission is the derivation of a high

. In order to fulfill the height requirements in general two global coverages are acquired and processed. Besides the final TanDEM-X DEM, an intermediate DEM with reduced accuracy is produced after the first coverage is completed. The last step in the whole workflow for generating the TanDEM-X DEM

Abstract — TanDEM-X is an innovative radar mission which encompasses two formation flying satellites. Its primary goal is the generation of a global Digital Elevation Model (DEM) of unprecedented accuracy. The baseline between the satellites can be flexibly adjusted for single-pass SAR

mission objective is the generation of a consistent global digital elevation model with an unprecedented accuracy according to the HRTI-3 specifications. Beyond that, TanDEM-X provides a highly reconfigurable platform for the demonstration of new SAR techniques and applications. This paper gives

While Earth Observation from space in the past was mainly focused on scientific purposes, today data and the derived information products are increasingly used for various commercial applications. Potential users are planning and