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2020 – today
- 2024
[j20]Prithvi Laguduvan Thyagarajan
, Holger Nies, Patrick Berens, Ivo Ihrke:
Performance Analysis of Optical Flow Techniques for Airborne SAR Image Registration. IEEE Trans. Geosci. Remote. Sens. 62: 1-11 (2024)- 2023
- [j19]Reza Mohammadi Asiyabi, Mihai Datcu, Andrei Anghel, Holger Nies:
Complex-Valued End-to-End Deep Network With Coherency Preservation for Complex-Valued SAR Data Reconstruction and Classification. IEEE Trans. Geosci. Remote. Sens. 61: 1-17 (2023) - [d1]Reza Mohammadi Asiyabi, Mihai Datcu, Andrei Anghel, Holger Nies:
S1SLC_CVDL: A Complex-Valued Annotated Single Look Complex Sentinel-1 SAR dataset for Complex-Valued Deep Networks. IEEE DataPort, 2023
- 2022
- [j18]Florian Behner, Simon Reuter, Holger Nies, Juan Manuel Cuerda Muñoz, Marcos García Rodríguez, Otmar Loffeld:
Characterization of the PAZ X-Band SAR Using the HITCHHIKER Ground Receiver. IEEE Geosci. Remote. Sens. Lett. 19: 1-5 (2022) - [c30]Reza Mohammadi Asiyabi, Mihai Datcu, Holger Nies, Andrei Anghel:
Complex-Valued Vs. Real-Valued Convolutional Neural Network for Polsar Data Classification. IGARSS 2022: 421-424 - 2020
- [j17]Xiaoyu Yan, Jie Chen, Holger Nies, Otmar Loffeld:
A Bistatic Analytical Approximation Model for Doppler Rate Estimation Error from Real-Time Spaceborne SAR Onboard Orbit Determination Data. Remote. Sens. 12(19): 3156 (2020)
2010 – 2019
- 2019
- [j16]Xiaoyu Yan, Jie Chen, Holger Nies, Otmar Loffeld:
Analytical Approximation Model for Quadratic Phase Error Introduced by Orbit Determination Errors in Real-Time Spaceborne SAR Imaging. Remote. Sens. 11(14): 1663 (2019) - [j15]Andrei Anghel, Mihai-Liviu Tudose, Remus Cacoveanu, Mihai Datcu, Giovanni Nico, Olimpia Masci, Dongyang Ao, Weiming Tian, Cheng Hu, Zegang Ding, Holger Nies, Otmar Loffeld, David Atencia, Samuel G. Huamán, Aleksander Medella, João Moreira:
Compact Ground-Based Interferometric Synthetic Aperture Radar: Short-range structural monitoring. IEEE Signal Process. Mag. 36(4): 42-52 (2019) - [c29]Xiaoyu Yan, Jie Chen, Holger Nies, Hongcheng Zeng, Otmar Loffeld:
Analysis of Quadratic Phase Error Introduced by Orbit Determination in Spaceborne Trinodal Pendulum Sar Formation Real-Time Imaging with Monte Carlo Simulation. IGARSS 2019: 8582-8585 - 2016
- [j14]Florian Behner, Simon Reuter, Holger Nies, Otmar Loffeld:
Synchronization and Processing in the HITCHHIKER Bistatic SAR Experiment. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 9(3): 1028-1035 (2016) - 2013
- [c28]Yuhong Yang, Junchuan Zhou, Holger Nies, Otmar Loffeld, Stefan Knedlik:
Development of a deeply-coupled GPS/INS integration algorithm using quaternions. FUSION 2013: 1791-1796 - 2012
- [j13]Xiaolan Qiu, Florian Behner, Simon Reuter, Holger Nies, Otmar Loffeld, Lijia Huang, Donghui Hu, Chibiao Ding:
An imaging algorithm based on keystone transform for one-stationary bistatic SAR of spotlight mode. EURASIP J. Adv. Signal Process. 2012: 221 (2012) - 2011
- [j12]Robert Wang, Yunkai Deng, Otmar Loffeld, Holger Nies, Ingo Walterscheid, Thomas Espeter, Jens Klare, Joachim H. G. Ender:
Processing the Azimuth-Variant Bistatic SAR Data by Using Monostatic Imaging Algorithms Based on Two-Dimensional Principle of Stationary Phase. IEEE Trans. Geosci. Remote. Sens. 49(10): 3504-3520 (2011) - 2010
- [j11]Robert Wang, Otmar Loffeld, Yew Lam Neo, Holger Nies, Ingo Walterscheid, Thomas Espeter, Jens Klare, Joachim H. G. Ender:
Focusing Bistatic SAR Data in Airborne/Stationary Configuration. IEEE Trans. Geosci. Remote. Sens. 48(1-2): 452-465 (2010) - [j10]Robert Wang, Otmar Loffeld, Holger Nies, Stefan Knedlik, Manfred Hagelen, Helmut Essen:
Focus FMCW SAR Data Using the Wavenumber Domain Algorithm. IEEE Trans. Geosci. Remote. Sens. 48(4-2): 2109-2118 (2010) - [j9]Ingo Walterscheid, Thomas Espeter, Andreas R. Brenner, Jens Klare, Joachim H. G. Ender, Holger Nies, Robert Wang, Otmar Loffeld:
Bistatic SAR Experiments With PAMIR and TerraSAR-X - Setup, Processing, and Image Results. IEEE Trans. Geosci. Remote. Sens. 48(8): 3268-3279 (2010) - [c27]Holger Nies, Florian Behner, Simon Reuter, Otmar Loffeld, Robert Wang:
Polarimetric and interferometric applications in a bistatic hybrid SAR mode using Terrasar-X. IGARSS 2010: 110-113 - [c26]Simon Reuter, Florian Behner, Holger Nies, Otmar Loffeld, Dietmar Matthes, Joachim Schiller:
Development and experiments of a passive SAR receiver system in a bistatic spaceborne/stationary configuration. IGARSS 2010: 118-121 - [c25]Robert Wang, Otmar Loffeld, Holger Nies, Valerij Peters, Manfred Hagelen, Helmut Essen:
Analysis and compensation for motion errors in FMCW SAR data. IGARSS 2010: 4075-4078 - [c24]Robert Wang, Otmar Loffeld, Holger Nies, Valerij Peters:
Image formation algorithm for bistatic forward-looking SAR. IGARSS 2010: 4091-4094
2000 – 2009
- 2009
- [j8]Robert Wang, Otmar Loffeld, Holger Nies, Stefan Knedlik, Joachim H. G. Ender:
Chirp-Scaling Algorithm for Bistatic SAR Data in the Constant-Offset Configuration. IEEE Trans. Geosci. Remote. Sens. 47(3): 952-964 (2009) - [j7]Robert Wang, Otmar Loffeld, Holger Nies, Joachim H. G. Ender:
Focusing Spaceborne/Airborne Hybrid Bistatic SAR Data Using Wavenumber-Domain Algorithm. IEEE Trans. Geosci. Remote. Sens. 47(7-2): 2275-2283 (2009) - 2008
- [j6]Martin Lambers, Holger Nies, Andreas Kolb:
Interactive Dynamic Range Reduction for SAR Images. IEEE Geosci. Remote. Sens. Lett. 5(3): 507-511 (2008) - [j5]Robert Wang, Otmar Loffeld, Qurat Ul-Ann, Holger Nies, Amaya Medrano Ortiz, Ashraf Samarah:
A Bistatic Point Target Reference Spectrum for General Bistatic SAR Processing. IEEE Geosci. Remote. Sens. Lett. 5(3): 517-521 (2008) - [j4]Otmar Loffeld, Holger Nies, Stefan Knedlik, Yu Wang:
Phase Unwrapping for SAR Interferometry - A Data Fusion Approach by Kalman Filtering. IEEE Trans. Geosci. Remote. Sens. 46(1): 47-58 (2008) - [c23]Holger Nies, Otmar Loffeld, Baki Dönmez, Amina Ben Hammadi, Robert Wang:
Image Registration of TerraSAR-X Data using Different Information Measures. IGARSS (4) 2008: 419-422 - [c22]Qurat Ul-Ann, Otmar Loffeld, Holger Nies, Robert Wang, Stefan Knedlik:
Optimizing the Individual Azimuth Contribution of Transmitter and Receiver Phase terms in Loffeld's Bistatic Formula (LBF) for Bistatic SAR Processing. IGARSS (3) 2008: 455-458 - [c21]Robert Wang, Otmar Loffeld, Holger Nies, Qurat Ul-Ann, Amaya Medrano Ortiz, Stefan Knedlik, Ashraf Samarah:
Analysis and Processing of Spaceborne/Airborne Bistatic SAR Data. IGARSS (3) 2008: 597-600 - [c20]Amaya Medrano Ortiz, Otmar Loffeld, Holger Nies, Robert Wang:
Second-Order Motion Compensation in Bistatic Airborne SAR based on the Windowed Fourier-Transformation. IGARSS (3) 2008: 613-616 - [c19]Holger Nies, Otmar Loffeld, Robert Wang:
Phase Unwrapping using 2D-Kalman Filter - Potential and Limitations. IGARSS (4) 2008: 1213-1216 - 2007
- [j3]Holger Nies, Otmar Loffeld, Koba Natroshvili:
Analysis and Focusing of Bistatic Airborne SAR Data. IEEE Trans. Geosci. Remote. Sens. 45(11-1): 3342-3349 (2007) - [c18]Marc Kalkuhl, Peter Droste, Wolfgang Wiechert, Holger Nies, Otmar Loffeld, Martin Lambers:
Parallel computation of synthetic SAR raw data. IGARSS 2007: 536-539 - [c17]Holger Nies, Otmar Loffeld, Koba Natroshvili, Marc Kalkuhl:
The bistatic aspect of the TanDEM-X mission. IGARSS 2007: 631-634 - [c16]Amaya Medrano Ortiz, Otmar Loffeld, Holger Nies, Stefan Knedlik:
Second-order motion compensation in bistatic airborne SAR based on a geometrical approach. IGARSS 2007: 2126-2129 - [c15]Martin Lambers, Andreas Kolb, Holger Nies, Marc Kalkuhl:
GPu-based framework for interactive visualization of SAR data. IGARSS 2007: 4076-4079 - 2006
- [j2]Koba Natroshvili, Otmar Loffeld, Holger Nies, Amaya Medrano Ortiz, Stefan Knedlik:
Focusing of General Bistatic SAR Configuration Data With 2-D Inverse Scaled FFT. IEEE Trans. Geosci. Remote. Sens. 44(10-1): 2718-2727 (2006) - [c14]Koba Natroshvili, Otmar Loffeld, Holger Nies, Joachim H. G. Ender:
2D Inverse Scaling Bistatic Processing and the focused Image Quality Measurements. IGARSS 2006: 1188-1191 - [c13]Holger Nies, Otmar Loffeld, Koba Natroshvili, Amaya Medrano Ortiz:
A Solution for Bistatic Motion Compensation. IGARSS 2006: 1204-1207 - [c12]Marc Kalkuhl, Peter Droste, Wolfgang Wiechert, Holger Nies, Otmar Loffeld:
Modular SAR Simulator for Bi- and Multistatic Constellations. IGARSS 2006: 1212-1215 - [c11]Joachim H. G. Ender, Jens Klare, Ingo Walterscheid, Andreas R. Brenner, Matthias Weiss, C. Kirchner, Helmut Wilden, Otmar Loffeld, Andreas Kolb, Wolfgang Wiechert, Marc Kalkuhl, Stefan Knedlik, Ulrich Gebhardt, Holger Nies, Koba Natroshvili, S. Ige, Amaya Medrano Ortiz, A. Amankwah:
Bistatic Exploration using Spaceborne and Airborne SAR Sensors: A Close Collaboration Between FGAN, ZESS, and FOMAAS. IGARSS 2006: 1828-1831 - [c10]Ulrich Gebhardt, Otmar Loffeld, Holger Nies, Koba Natroshvili, Stefan Knedlik:
Bistatic Space Borne / Airborne Experiment: Geometrical Modeling and Simulation. IGARSS 2006: 1832-1835 - 2005
- [c9]Holger Nies, Otmar Loffeld, Koba Natroshvili, Ingo Walterscheid, Andreas R. Brenner:
Parameter estimation for bistatic constellations. IGARSS 2005: 1038-1042 - [c8]Koba Natroshvili, Otmar Loffeld, Holger Nies, Amaya Medrano Ortiz:
First steps to bistatic focusing. IGARSS 2005: 1072-1076 - [c7]Amaya Medrano Ortiz, Otmar Loffeld, Stefan Knedlik, Holger Nies, Koba Natroshvili:
Comparison of doppler centroid estimators in bistatic airborne SAR. IGARSS 2005: 1963-1966 - 2004
- [j1]Otmar Loffeld, Holger Nies, Valerij Peters, Stefan Knedlik:
Models and useful relations for bistatic SAR processing. IEEE Trans. Geosci. Remote. Sens. 42(10): 2031-2038 (2004) - [c6]Holger Nies, Otmar Loffeld, Stefan Knedlik, Ulrich Gebhardt, Wolfgang Wiechert:
A data fusion approach for distributed orbit estimation. IGARSS 2004: 3736-3739 - [c5]Ulrich Gebhardt, Otmar Loffeld, Marc Kalkuhl, Holger Nies, Stefan Knedlik:
Orbit tracking and interpolation using a realistic gravitation model. IGARSS 2004: 3767-3769 - 2003
- [c4]Otmar Loffeld, Holger Nies, Valerij Peters, Stefan Knedlik:
Models and useful relations for bistatic SAR processing. IGARSS 2003: 1442-1445 - [c3]Ulrich Gebhardt, Otmar Loffeld, Holger Nies, Valerij Peters:
Orbit modeling related to cartwheel geometry. IGARSS 2003: 3604-3606 - [c2]Holger Nies, Otmar Loffeld, Ulrich Gebhardt, Valerij Peters:
Orbit estimation of the interferometric cartwheel using an extended linearized Kalman filter. IGARSS 2003: 3616-3619 - [c1]Stefan Knedlik, Otmar Loffeld, Holger Nies:
Sensitivity of DEMs generated from interferometric cartwheel configurations. IGARSS 2003: 3805-3807
Coauthor Index
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