Calibration concept for the TerraSAR-X instrument. - Marco Schwerdt; David Hounam; Martin Stangl (IGARSS, 2003)

Individual T/R module characterisation of the TerraSAR-X active phased array antenna by calibration pulse sequences with orthogonal codes. - Benjamin Bräutigam; Marco Schwerdt; Markus Bachmann; Martin Stangl (IGARSS, 2007)

TerraSAR-X calibration - first results. - Marco Schwerdt; Benjamin Bräutigam; Markus Bachmann; Björn Döring (IGARSS, 2007)

Analysis of Atmospheric Propagation Effects in TerraSAR-X Images. - Andreas Danklmayer; Björn Döring; Marco Schwerdt; Madhukar Chandra (IGARSS (2), 2008)

Bistatic spaceborne-airborne experiment TerraSAR-X/F-SAR: data processing and results. - Marc Rodriguez-Cassola; Stefan Valentin Baumgartner; Gerhard Krieger; Anton Nottensteiner; Ralf Horn; Ulrich Steinbrecher; Robert Metzig; Markus Limbach; Pau Prats; Jens Fischer; Marco Schwerdt; Alberto Moreira (IGARSS (3), 2008)

TerraSAR-X Calibration Results. - Marco Schwerdt; Benjamin Bräutigam; Markus Bachmann; Björn Döring; Dirk Schrank; Jaime Hueso Gonzalez (IGARSS (2), 2008)

Innovative and Efficient Strategy of Calibrating Sentinel-1. - Marco Schwerdt; Benjamin Bräutigam; Björn Döring; Manfred Zink (IGARSS (1), 2009)

An Efficient Method for Performance Monitoring of Active Phased Array Antennas. - Benjamin Bräutigam; Marco Schwerdt; Markus Bachmann (IEEE Trans. Geosci. Remote. Sens., 2009)

Assessment of Atmospheric Propagation Effects in SAR Images. - Andreas Danklmayer; Björn Döring; Marco Schwerdt; Madhu Chandra (IEEE Trans. Geosci. Remote. Sens., 2009)

SAR performance monitoring for TerraSAR-X mission. - Benjamin Bräutigam; Paola Rizzoli; Carolina González; Mathias Weigt; Dirk Schrank; Daniel Schulze; Marco Schwerdt (IGARSS, 2010)

Monostatic calibration of both TanDEM-X satellites. - Marco Schwerdt; Jaime Hueso Gonzalez; Markus Bachmann; Dirk Schrank; Clemens Schulz; Björn Döring (IGARSS, 2010)

TerraSAR-X Antenna Calibration and Monitoring Based on a Precise Antenna Model. - Markus Bachmann; Marco Schwerdt; Benjamin Bräutigam (IEEE Trans. Geosci. Remote. Sens., 2010)

TerraSAR-X Instrument Calibration Results and Extension for TanDEM-X. - Benjamin Bräutigam; Jaime Hueso Gonzalez; Marco Schwerdt; Markus Bachmann (IEEE Trans. Geosci. Remote. Sens., 2010)

Final TerraSAR-X Calibration Results Based on Novel Efficient Methods. - Marco Schwerdt; Benjamin Bräutigam; Markus Bachmann; Björn Döring; Dirk Schrank; Jaime Hueso Gonzalez (IEEE Trans. Geosci. Remote. Sens., 2010)

In-orbit calibration of the TanDEM-X system. - Marco Schwerdt; Jaime Hueso Gonzalez; Markus Bachmann; Dirk Schrank; Björn Döring; Nuria Tous-Ramon; John Mohan Walter Antony (IGARSS, 2011)

TanDEM-X acquisition status and calibration of the interferometric system. - 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 (IGARSS, 2012)

Are pixel intensities proportional to radar cross section in sar images? - Björn Döring; Marco Schwerdt (IGARSS, 2012)

Tests of the TanDEM-X DEM calibration performance. - Jaime Hueso Gonzalez; John Mohan Walter Antony; Markus Bachmann; Gerhard Krieger; Marco Schwerdt; Manfred Zink (IGARSS, 2012)

First measurement results of a new highly-accurate active SAR calibration target. - Matthias Jirousek; Björn Döring; Philipp R. Looser; Marco Schwerdt (IGARSS, 2012)

High precision SAR focusing of TerraSAR-X experimental staring spotlight data. - Pau Prats-Iraola; Rolf Scheiber; Marc Rodriguez-Cassola; Steffen Wollstadt; Josef Mittermayer; Benjamin Bräutigam; Marco Schwerdt; Andreas Reigber; Alberto Moreira (IGARSS, 2012)

Reference Target Correction Based on Point-Target SAR Simulation. - Björn Döring; Philipp R. Looser; Matthias Jirousek; Marco Schwerdt (IEEE Trans. Geosci. Remote. Sens., 2012)

Hierarchical Bayesian Data Analysis in Radiometric SAR System Calibration: A Case Study on Transponder Calibration with RADARSAT-2 Data. - Björn J. Döring; Kersten Schmidt; Matthias Jirousek; Daniel Rudolf; Jens Reimann; Sebastian Raab; John Mohan Walter Antony; Marco Schwerdt (Remote. Sens., 2013)

Results of the TanDEM-X Baseline Calibration. - John Mohan Walter Antony; Jaime Hueso Gonzalez; Marco Schwerdt; Markus Bachmann; Gerhard Krieger; Manfred Zink (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2013)

The Radiometric Measurement Quantity for SAR Images. - Björn Döring; Marco Schwerdt (IEEE Trans. Geosci. Remote. Sens., 2013)

On the Processing of Very High Resolution Spaceborne SAR Data. - Pau Prats-Iraola; Rolf Scheiber; Marc Rodriguez-Cassola; Josef Mittermayer; Steffen Wollstadt; Francesco De Zan; Benjamin Bräutigam; Marco Schwerdt; Andreas Reigber; Alberto Moreira (IEEE Trans. Geosci. Remote. Sens., 2014)

Independent Verification of the Sentinel-1A System Calibration. - Marco Schwerdt; Kersten Schmidt; Nuria Tous-Ramon; Gabriel Castellanos Alfonzo; Björn J. Döring; Manfred Zink; Pau Prats-Iraola (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2016)

The SAR Passband Problem: Analytical Model and Possible Practical Solutions. - Björn J. Döring; Marco Schwerdt (IEEE Trans. Geosci. Remote. Sens., 2016)

Independent System Calibration of Sentinel-1B. - Marco Schwerdt; Kersten Schmidt; Nuria Tous-Ramon; Patrick Klenk; Nestor Yague-Martinez; Pau Prats-Iraola; Manfred Zink; Dirk Geudtner (Remote. Sens., 2017)

Geometric Accuracy of Sentinel-1A and 1B Derived from SAR Raw Data with GPS Surveyed Corner Reflector Positions. - Kersten Schmidt; Jens Reimann; Nuria Tous-Ramon; Marco Schwerdt (Remote. Sens., 2018)

Radiometric Performance of the TerraSAR-X Mission over More Than Ten Years of Operation. - Marco Schwerdt; Kersten Schmidt; Patrick Klenk; Nuria Tous-Ramon; Daniel Rudolf; Sebastian Raab; Klaus Weidenhaupt 001; Jens Reimann; Manfred Zink (Remote. Sens., 2018)

Precise Antenna Pointing Determination in Elevation for Spaceborne SAR Systems Using Coherent Pattern Differences. - Jens Reimann; Marco Schwerdt; Kersten Schmidt; Patrick T. P. Klenk; Ulrich Steinbrecher; Helko Breit (Remote. Sens., 2019)

Technique for Concurrent Internal Calibration during Data Acquisition for SAR Systems. - Jens Reimann; Marco Schwerdt (Remote. Sens., 2020)

Radiometric Comparison within the Sentinel-1 SAR Constellation over a Wide Backscatter Range. - Kersten Schmidt; Marco Schwerdt; Nuno Miranda; Jens Reimann (Remote. Sens., 2020)

Mitigation of Mutual Antenna Coupling Effects for Active Radar Targets in L-Band. - Anna Maria Büchner; Klaus Weidenhaupt 001; Bernd Gabler; Markus Limbach; Marco Schwerdt (Remote. Sens., 2021)

TanDEM-X Long-Term System Performance After 10 Years of Operation. - Allan Bojarski; Markus Bachmann; Johannes Böer; Thomas Kraus; Christopher Wecklich; Ulrich Steinbrecher; Nuria Tous-Ramon; Kersten Schmidt; Patrick Klenk; Christo Grigorov; Marco Schwerdt; Manfred Zink (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2021)

Highly Accurate Radar Cross-Section and Transfer Function Measurement of a Digital Calibration Transponder without Known Reference - Part I: Measurement and Results. - Jens Reimann; Anna Maria Büchner; Sebastian Raab; Klaus Weidenhaupt 001; Matthias Jirousek; Marco Schwerdt (Remote. Sens., 2023)

Radiometric Re-Compensation of Sentinel-1 SAR Data Products for Artificial Biases due to Antenna Pattern Changes. - Kersten Schmidt; Marco Schwerdt; Guillaume Hajduch; Pauline Vincent; Andrea Recchia; Muriel Pinheiro (Remote. Sens., 2023)

Highly Accurate Radar Cross-Section and Transfer Function Measurement of a Digital Calibration Transponder without Known Reference - Part II: Uncertainty Estimation and Validation. - Jens Reimann; Anna Maria Büchner; Sebastian Raab; Klaus Weidenhaupt 001; Matthias Jirousek; Marco Schwerdt (Remote. Sens., 2023)