Baseline estimation and prediction referring to the SRTM. - Stefan Knedlik; Otmar Loffeld (IGARSS, 2002)

Sensitivity of DEMs generated from interferometric cartwheel configurations. - Stefan Knedlik; Otmar Loffeld; Holger Nies (IGARSS, 2003)

Orbit tracking and interpolation using a realistic gravitation model. - Ulrich Gebhardt; Otmar Loffeld; Marc Kalkuhl; Holger Nies; Stefan Knedlik (IGARSS, 2004)

A data fusion approach for distributed orbit estimation. - Holger Nies; Otmar Loffeld; Stefan Knedlik; Ulrich Gebhardt; Wolfgang Wiechert (IGARSS, 2004)

Models and useful relations for bistatic SAR processing. - Otmar Loffeld; Holger Nies; Valerij Peters; Stefan Knedlik (IEEE Trans. Geosci. Remote. Sens., 2004)

Comparison of doppler centroid estimators in bistatic airborne SAR. - Amaya Medrano Ortiz; Otmar Loffeld; Stefan Knedlik; Holger Nies; Koba Natroshvili (IGARSS, 2005)

Clock synchronization protocol for distributed satellite networks. - Pakorn Ubolkosold; Stefan Knedlik; Otmar Loffeld (IGARSS, 2005)

PCRB for Positioning in GSM Networks. - Miao Zhang; Stefan Knedlik; Otmar Loffeld (GI Jahrestagung (1), 2006)

Bistatic Exploration using Spaceborne and Airborne SAR Sensors: A Close Collaboration Between FGAN, ZESS, and FOMAAS. - Joachim H. G. Ender; Jens Klare; Ingo Walterscheid; Andreas R. Brenner; Matthias Weiss; C. Kirchner; Helmut Wilden; Otmar Loffeld; Andreas Kolb 001; Wolfgang Wiechert; Marc Kalkuhl; Stefan Knedlik; et al. (IGARSS, 2006)

Bistatic Space Borne / Airborne Experiment: Geometrical Modeling and Simulation. - Ulrich Gebhardt; Otmar Loffeld; Holger Nies; Koba Natroshvili; Stefan Knedlik (IGARSS, 2006)

On Position and Attitude Determination Requirements for future Bistatic SAR Experiments. - Stefan Knedlik; Otmar Loffeld; Ulrich Gebhardt (IGARSS, 2006)

Data-Aided Timing Acquisition in UWB Differential Transmitted Reference Systems. - Gustave Franck Tchere; Pakorn Ubolkosold; Stefan Knedlik; Otmar Loffeld; Klaus Witrisal (PIMRC, 2006)

Focusing of General Bistatic SAR Configuration Data With 2-D Inverse Scaled FFT. - Koba Natroshvili; Otmar Loffeld; Holger Nies; Amaya Medrano Ortiz; Stefan Knedlik (IEEE Trans. Geosci. Remote. Sens., 2006)

Simple Carrier Frequency Offset Estimators in Frequency Flat-Fading Channels. - Pakorn Ubolkosold; Gustave Franck Tchere; Stefan Knedlik; Otmar Loffeld (ICC, 2007)

Second-order motion compensation in bistatic airborne SAR based on a geometrical approach. - Amaya Medrano Ortiz; Otmar Loffeld; Holger Nies; Stefan Knedlik (IGARSS, 2007)

Constrained-trajectory based GPS/INS integration for reliable position and attitude determination. - Pakorn Ubolkosold; Stefan Knedlik; Ezzaldeen Edwan; Otmar Loffeld (IGARSS, 2007)

Spotlight-mode SAR data focusing using a modified wavenumber domain algorithm. - Yu Wang 031; Otmar Loffeld; Stefan Knedlik (IGARSS, 2007)

Road-Constrained Target Tracking in GSM Networks. - Miao Zhang; Stefan Knedlik; Otmar Loffeld (ISWCS, 2007)

Bit Error Performance of Differential Impulse Radio UWB Systems. - Gustave Franck Tchere; Pakorn Ubolkosold; Stefan Knedlik; Otmar Loffeld (VTC Spring, 2007)

Communication and TOA Estimation with Differential Impulse Radio UWB systems. - Gustave Franck Tchere; Pakorn Ubolkosold; Stefan Knedlik; Otmar Loffeld (WPNC, 2007)

IMM Estimator for Maneuvering Target Tracking in GSM Networks. - Miao Zhang; Stefan Knedlik; Otmar Loffeld (WPNC, 2007)

An adaptive road-constrained IMM estimator for ground target tracking in GSM networks. - Miao Zhang; Stefan Knedlik; Otmar Loffeld (FUSION, 2008)

GPS/INS Integration for Footprint Chasing in Bistatic SAR Experiments. - Stefan Knedlik; Ezzaldeen Edwan; Junchuan Zhou; Zhen Dai; Pakorn Ubolkosold; Otmar Loffeld (IGARSS (3), 2008)

Optimizing the Individual Azimuth Contribution of Transmitter and Receiver Phase terms in Loffeld's Bistatic Formula (LBF) for Bistatic SAR Processing. - Qurat Ul-Ann; Otmar Loffeld; Holger Nies; Robert Wang 001; Stefan Knedlik (IGARSS (3), 2008)

Analysis and Processing of Spaceborne/Airborne Bistatic SAR Data. - Robert Wang 001; Otmar Loffeld; Holger Nies; Qurat Ul-Ann; Amaya Medrano Ortiz; Stefan Knedlik; Ashraf Samarah (IGARSS (3), 2008)

An Improved Frequency Offset Estimator for SIMO-OFDM with Maximum Estimation Range. - Pakorn Ubolkosold; Gustave Franck Tchere; Stefan Knedlik; Otmar Loffeld (VTC Spring, 2008)

A New Closed-Form Frequency Estimator in the Presence of Fading-Induced Multiplicative Noise. - Pakorn Ubolkosold; Gustave Franck Tchere; Stefan Knedlik; Otmar Loffeld (VTC Spring, 2008)

On Nonlinear Road-Constrained Target Tracking in GSM Networks. - Miao Zhang; Stefan Knedlik; Otmar Loffeld (VTC Spring, 2008)

Real-time cycle-slip detection and determination for multiple frequency GNSS. - Zhen Dai; Stefan Knedlik; Otmar Loffeld (WPNC, 2008)

A Method to Extend the Estimation Range of the Existing Time-Domain Doppler Centroid Estimators. - Pakorn Ubolkosold; Stefan Knedlik; Otmar Loffeld (IEEE Geosci. Remote. Sens. Lett., 2008)

Phase Unwrapping for SAR Interferometry - A Data Fusion Approach by Kalman Filtering. - Otmar Loffeld; Holger Nies; Stefan Knedlik; Yu Wang 031 (IEEE Trans. Geosci. Remote. Sens., 2008)

Performance analysis of data fusion for ground target tracking using GSM networks. - Miao Zhang; Stefan Knedlik; Otmar Loffeld (FUSION, 2009)

GPS/INS integration for GF-IMU of twelve mono-axial accelerometers configurations. - Ezzaldeen Edwan; Stefan Knedlik; Junchuan Zhou; Otmar Loffeld (WPNC, 2009)

Chirp-Scaling Algorithm for Bistatic SAR Data in the Constant-Offset Configuration. - Robert Wang 001; Otmar Loffeld; Holger Nies; Stefan Knedlik; Joachim H. G. Ender (IEEE Trans. Geosci. Remote. Sens., 2009)

Low-cost INS/GPS with nonlinear filtering methods. - Junchuan Zhou; Ezzaldeen Edwan; Stefan Knedlik; Otmar Loffeld (FUSION, 2010)

Focus FMCW SAR Data Using the Wavenumber Domain Algorithm. - Robert Wang 001; Otmar Loffeld; Holger Nies; Stefan Knedlik; Manfred Hagelen; Helmut Essen (IEEE Trans. Geosci. Remote. Sens., 2010)

Constrained Angular Motion Estimation in a Gyro-Free IMU. - Ezzaldeen Edwan; Stefan Knedlik; Otmar Loffeld (IEEE Trans. Aerosp. Electron. Syst., 2011)

Angular Motion Estimation Using Dynamic Models in a Gyro-Free Inertial Measurement Unit. - Ezzaldeen Edwan; Stefan Knedlik; Otmar Loffeld (Sensors, 2012)

Development of a deeply-coupled GPS/INS integration algorithm using quaternions. - Yuhong Yang 005; Junchuan Zhou; Holger Nies; Otmar Loffeld; Stefan Knedlik (FUSION, 2013)