5 citations · 6 across the 5 of their papers we have counts for
5 papers
First steps to bistatic focusing
K Natroshvili, O Loffeld, H Nies +1
Although this work is a bit theoretical and contains lots of derivations, it leads to very explicit practical results in bistatic focusing. Our approach is based on Loffelds bistat…
Some New Results on l1-Minimizing Nullspace Kalman Filtering for Remote Sensing Applications
Otmar Loffeld, Dunja Alexandra Hage, Miguel Heredia Conde +1
This paper describes some new results on recursive l_1-minimizing by Kalman filtering. We consider the l_1-norm as an explicit constraint, formulated as a nonlinear observation of…
Are good local minima wide in sparse recovery?
Michael Moeller, Otmar Loffeld, Juergen Gall +1
The idea of compressed sensing is to exploit representations in suitable (overcomplete) dictionaries that allow to recover signals far beyond the Nyquist rate provided that they ad…
Fast Approximate Construction of Best Complex Antipodal Spherical Codes
Miguel Heredia Conde, Otmar Loffeld
Compressive Sensing (CS) theory states that real-world signals can often be recovered from much fewer measurements than those suggested by the Shannon sampling theorem. Nevertheles…
Norm minimized Scattering Data from Intensity Spectra
A. Seel, A. Davtyan, U. Pietsch +1
We apply the minimizing technique of compressive sensing (CS) to non-linear quadratic observations. For the example of coherent X-ray scattering we provide the formulae for a…