Modulation spaces: looking back and ahead

HG Feichtinger - Sampling Theory in Signal and Image Processing, 2006 - Springer
This note provides historical perspective and background on the motivations which led to the
invention of the modulation spaces by the author almost 25 years ago, as well as comments …

Identification of parametric underspread linear systems and super-resolution radar

WU Bajwa, K Gedalyahu… - IEEE Transactions on …, 2011 - ieeexplore.ieee.org
Identification of time-varying linear systems, which introduce both time-shifts (delays) and
frequency-shifts (Doppler-shifts), is a central task in many engineering applications. This …

Time-frequency foundations of communications: Concepts and tools

G Matz, H Bolcskei, F Hlawatsch - IEEE Signal Processing …, 2013 - ieeexplore.ieee.org
Hitherto communication theory was based on two alternative methods of signal analysis.
One is the description of the signal as a function of time; the other is Fourier analysis. Both …

Super-resolution radar

R Heckel, VI Morgenshtern… - … and Inference: A …, 2016 - academic.oup.com
In this paper, we study the identification of a time-varying linear system from its response to a
known input signal. More specifically, we consider systems whose response to the input …

Linear independence of Gabor systems in finite dimensional vector spaces

J Lawrence, GE Pfander, D Walnut - Journal of Fourier Analysis and …, 2005 - Springer
We discuss the linear independence of systems ofmvectors in n-dimensional complex vector
spaces where the m vectors are time-frequency shifts of one generating vector. Such …

Pseudodifferential operators and Banach algebras in mobile communications

T Strohmer - Applied and Computational Harmonic Analysis, 2006 - Elsevier
We study linear time-varying operators arising in mobile communication using methods from
time–frequency analysis. We show that a wireless transmission channel can be modeled as …

Measurement of time-variant linear channels

GE Pfander, DF Walnut - IEEE transactions on information …, 2006 - ieeexplore.ieee.org
The goal of channel measurement or operator identification is to obtain complete knowledge
of a channel operator by observing the image of a finite number of input signals. In this …

Sub-Nyquist radar: Principles and prototypes

KV Mishra, YC Eldar, AD Maio… - Compressed sensing in …, 2019 - books.google.com
Radar remote sensing has advanced tremendously since 1950 and is now applied to
diverse areas such as military surveillance, meteorology, geology, collision avoidance, and …

Identification of matrices having a sparse representation

GE Pfander, H Rauhut, J Tanner - IEEE Transactions on Signal …, 2008 - ieeexplore.ieee.org
We consider the problem of recovering a matrix from its action on a known vector in the
setting where the matrix can be represented efficiently in a known matrix dictionary …

Finite-rate-of-innovation-sampling-based super-resolution radar imaging

S Rudresh, CS Seelamantula - IEEE Transactions on Signal …, 2017 - ieeexplore.ieee.org
We address the problem of estimating target locations that are sparse in a pulse-Doppler
radar's unambiguous region by sampling the received signal at sub-Nyquist rates. The …