Markus Bachmann Daniel Schulze Carlos Ortega-Miguez Donata Polimeni Johannes Böer Jaime Hueso Gonzalez John Mohan Walter Antony Gerhard Krieger Benjamin Bräutigam Marco Schwerdt Manfred Zink TanDEM-X acquisition status and calibration of the interferometric system. 1900-1903 2012 IGARSS https://doi.org/10.1109/IGARSS.2012.6351135 conf/igarss/2012 db/conf/igarss/igarss2012.html#BachmannSOPBGAKBSZ12