David Ramírez

Publication Activity (10 Years)

Years Active: 2006-2024
Publications (10 Years): 41

Top Topics

Factor Analysis

Cognitive Radio

Poisson Processes

Spectrum Sensing

Top Venues

IEEE Trans. Signal Process.

Publications

Pei-Wen Wu, Lei Huang, David Ramírez, Yu-Hang Xiao, Hing Cheung So
One-Bit Spectrum Sensing for Cognitive Radio. IEEE Trans. Signal Process. 72 (2024)
Stefanie Horstmann, David Ramírez, Peter J. Schreier
Multistatic Passive Detection of Cyclostationary Signals. ICASSP (2024)
David Ramírez, Ignacio Santamaría, Louis L. Scharf
Passive Detection of a Random Signal Common to Multi-Sensor Reference and Surveillance Arrays. IEEE Trans. Veh. Technol. 73 (7) (2024)
Gray Stanton, David Ramírez, Ignacio Santamaría, Louis L. Scharf, Haonan Wang
Identifiability in Multi-Channel Factor Analysis. ACSSC (2023)
Yu-Hang Xiao, Lei Huang, David Ramírez, Cheng Qian, Hing Cheung So
Covariance Matrix Recovery From One-Bit Data With Non-Zero Quantization Thresholds: Algorithm and Performance Analysis. IEEE Trans. Signal Process. 71 (2023)
David Ramírez, Ignacio Santamaría, Louis L. Scharf
Passive Detection of Rank-One Gaussian Signals for Known Channel Subspaces and Arbitrary Noise. ICASSP (2023)
Jesús Pérez, Javier Vía, Luis Vielva, David Ramírez
Online Detection and SNR Estimation in Cooperative Spectrum Sensing. IEEE Trans. Wirel. Commun. 21 (4) (2022)
Yu-Hang Xiao, David Ramírez, Peter J. Schreier, Cheng Qian, Lei Huang
One-Bit Target Detection in Collocated MIMO Radar and Performance Degradation Analysis. IEEE Trans. Veh. Technol. 71 (9) (2022)
Vaibhav Garg, David Ramírez, Ignacio Santamaría
Sparse Subspace Averaging for Order Estimation. SSP (2021)
Pablo Moreno-Muñoz, David Ramírez, Antonio Artés-Rodríguez
Change-point detection in hierarchical circadian models. Pattern Recognit. 113 (2021)
David Ramírez, Antonio G. Marques, Santiago Segarra
Graph-signal Reconstruction and Blind Deconvolution for Structured Inputs. Signal Process. 188 (2021)
Pablo Bonilla-Escribano, David Ramírez, Antonio Artés-Rodríguez
Modeling Phone Call Durations via Switching Poisson Processes with Applications in Mental Health. MLSP (2020)
Yu-Hang Xiao, David Ramírez, Peter J. Schreier
A General Test for the Linear Structure of Covariance Matrices of Gaussian Populations. ICASSP (2020)
Stefanie Horstmann, David Ramírez, Peter J. Schreier
Two-Channel Passive Detection of Cyclostationary Signals. IEEE Trans. Signal Process. 68 (2020)
Ignacio Santamaría, Louis L. Scharf, David Ramírez
Scale-Invariant Subspace Detectors Based on First- and Second-Order Statistical Models. IEEE Trans. Signal Process. 68 (2020)
David Ramírez, Ignacio Santamaría, Louis L. Scharf, Steven Van Vaerenbergh
Multi-Channel Factor Analysis With Common and Unique Factors. IEEE Trans. Signal Process. 68 (2020)
Pablo Moreno-Muñoz, David Ramírez, Antonio Artés-Rodríguez
Continual Learning for Infinite Hierarchical Change-Point Detection. ICASSP (2020)
Pablo Bonilla-Escribano, David Ramírez, Alba Sedano-Capdevila, Juan José Campaña-Montes, Enrique Baca-García, Philippe Courtet, Antonio Artés-Rodríguez
Assessment of e-Social Activity in Psychiatric Patients. IEEE J. Biomed. Health Informatics 23 (6) (2019)
Vaibhav Garg, Ignacio Santamaría, David Ramírez, Louis L. Scharf
Subspace Averaging and Order Determination for Source Enumeration. IEEE Trans. Signal Process. 67 (11) (2019)
Stefanie Horstmann, David Ramírez, Peter J. Schreier, Aaron Pries
Two-channel passive detection of cyclostationary signals in noise with spatio-temporal structure. ACSSC (2019)
Pablo Moreno-Muñoz, David Ramírez, Antonio Artés-Rodríguez
Continual Learning for Infinite Hierarchical Change-Point Detection. CoRR (2019)
Stefanie Horstmann, David Ramírez, Peter J. Schreier
Two-Channel Passive Detection Exploiting Cyclostationarity. EUSIPCO (2019)
Alma Eguizabal, Christian Lameiro, David Ramírez, Peter J. Schreier
Source Enumeration in the Presence of Colored Noise. IEEE Signal Process. Lett. 26 (3) (2019)
David Ramírez, Daniel Romero, Javier Vía, Roberto López-Valcarce, Ignacio Santamaría
Locally Optimal Invariant Detector for Testing Equality of Two Power Spectral Densities. ICASSP (2018)
Alma Eguizabal, Peter J. Schreier, David Ramírez
Model-order Selection in Statistical Shape Models. MLSP (2018)
David Ramírez, Ignacio Santamaría, Steven Van Vaerenbergh, Louis L. Scharf
An alternating optimization algorithm for two-channel factor analysis with common and uncommon factors. ACSSC (2018)
Fernando Jose Iglesias Garcia, Santiago Segarra, Samuel Rey-Escudero, Antonio G. Marques, David Ramírez
Demixing and Blind Deconvolution of Graph-Diffused Sparse Signals. ICASSP (2018)
Aaron Pries, David Ramírez, Peter J. Schreier
LMPIT-Inspired Tests for Detecting a Cyclostationary Signal in Noise With Spatio-Temporal Structure. IEEE Trans. Wirel. Commun. 17 (9) (2018)
Stefanie Horstmann, David Ramírez, Peter J. Schreier
Joint Detection of Almost-Cyclostationary Signals and Estimation of Their Cycle Period. IEEE Signal Process. Lett. 25 (11) (2018)
Alma Eguizabal, Peter J. Schreier, David Ramírez
Model-order selection in statistical shape models. CoRR (2018)
David Ramírez, Daniel Romero, Javier Vía, Roberto López-Valcarce, Ignacio Santamaría
Testing Equality of Multiple Power Spectral Density Matrices. IEEE Trans. Signal Process. 66 (23) (2018)
Pablo Moreno-Muñoz, David Ramírez, Antonio Artés-Rodríguez
Change-Point Detection on Hierarchical Circadian Models. CoRR (2018)
Ignacio Santamaría, David Ramírez, Louis L. Scharf
Subspace Averaging for Source Enumeration in Large Arrays. SSP (2018)
David Ramírez, Antonio G. Marques, Santiago Segarra
Graph-signal reconstruction and blind deconvolution for diffused sparse inputs. ICASSP (2017)
Stefanie Horstmann, David Ramírez, Peter J. Schreier
Detection of almost-cyclostationarity: An approach based on a multiple hypothesis test. ACSSC (2017)
Aaron Pries, David Ramírez, Peter J. Schreier
Detection of cyclostationarity in the presence of temporal or spatial structure with applications to cognitive radio. ICASSP (2016)
Tanuj Hasija, Yang Song, Peter J. Schreier, David Ramírez
Bootstrap-based detection of the number of signals correlated across multiple data sets. ACSSC (2016)
Yang Song, Tanuj Hasija, Peter J. Schreier, David Ramírez
Determining the number of signals correlated across multiple data sets for small sample support. EUSIPCO (2016)
Yang Song, Peter J. Schreier, David Ramírez, Tanuj Hasija
Canonical correlation analysis of high-dimensional data with very small sample support. CoRR (2016)
Tanuj Hasija, Yang Song, Peter J. Schreier, David Ramírez
Detecting the dimension of the subspace correlated across multiple data sets in the sample poor regime. SSP (2016)
Yang Song, Peter J. Schreier, David Ramírez, Tanuj Hasija
Canonical correlation analysis of high-dimensional data with very small sample support. Signal Process. 128 (2016)
David Ramírez, Peter J. Schreier, Javier Vía, Ignacio Santamaría, Louis L. Scharf
Detection of Multivariate Cyclostationarity. IEEE Trans. Signal Process. 63 (20) (2015)
David Ramírez, Peter J. Schreier, Javier Vía, Ignacio Santamaría, Louis L. Scharf
An asymptotic LMPI test for cyclostationarity detection with application to cognitive radio. ICASSP (2015)
Sven Dähne, Vadim V. Nikulin, David Ramírez, Peter J. Schreier, Klaus-Robert Müller, Stefan Haufe
Optimizing spatial filters for the extraction of envelope-coupled neural oscillations. PRNI (2014)
Sadiq Ali, David Ramírez, Magnus Jansson, Gonzalo Seco-Granados, José A. Lopez-Salcedo
Multi-antenna spectrum sensing by exploiting spatio-temporal correlation. EURASIP J. Adv. Signal Process. 2014 (2014)
Sven Dähne, Vadim V. Nikulin, David Ramírez, Peter J. Schreier, Klaus-Robert Müller, Stefan Haufe
Finding brain oscillations with power dependencies in neuroimaging data. NeuroImage 96 (2014)
David Ramírez, Louis L. Scharf, Javier Vía, Ignacio Santamaría, Peter J. Schreier
An asymptotic GLRT for the detection of cyclostationary signals. ICASSP (2014)
David Ramírez, Peter J. Schreier, Javier Vía, Ignacio Santamaría
Testing blind separability of complex Gaussian mixtures. Signal Process. 95 (2014)
Sofia Charlotta Olhede, David Ramírez, Peter J. Schreier
Detecting Directionality in Random Fields Using the Monogenic Signal. IEEE Trans. Inf. Theory 60 (10) (2014)
David Ramírez, Peter J. Schreier, Javier Vía, Ignacio Santamaría, Louis L. Scharf
A regularized maximum likelihood estimator for the period of a cyclostationary process. ACSSC (2014)
J. Manco-Vasquez, Miguel Lázaro-Gredilla, David Ramírez, Javier Vía, Ignacio Santamaría
A Bayesian approach for adaptive multiantenna sensing in cognitive radio networks. Signal Process. 96 (2014)
Sofia C. Olhede, David Ramírez, Peter J. Schreier
Measuring Directionality in Random Fields Using the Monogenic Signal CoRR (2013)
David Ramírez, Peter J. Schreier, Javier Vía, Vadim V. Nikulin
Power-CCA: Maximizing the correlation coefficient between the power of projections. ICASSP (2013)
David Ramírez, Javier Vía, Ignacio Santamaría, Louis L. Scharf
Locally Most Powerful Invariant Tests for Correlation and Sphericity of Gaussian Vectors. IEEE Trans. Inf. Theory 59 (4) (2013)
J. Manco-Vasquez, Miguel Lázaro-Gredilla, David Ramírez, Javier Vía, Ignacio Santamaría
Bayesian multiantenna sensing for cognitive radio. SAM (2012)
Sofia C. Olhede, David Ramírez, Peter J. Schreier
The random monogenic signal. ICIP (2012)
David Ramírez, Javier Vía Rodríguez, Ignacio Santamaría
The locally most powerful test for multiantenna spectrum sensing with uncalibrated receivers. ICASSP (2012)
David Ramírez, Jorge Iscar, Javier Vía, Ignacio Santamaría, Louis L. Scharf
The locally most powerful invariant test for detecting a rank-P Gaussian signal in white noise. SAM (2012)
David Ramírez, Javier Vía, Ignacio Santamaría, Louis L. Scharf
Locally Most Powerful Invariant Tests for Correlation and Sphericity of Gaussian Vectors CoRR (2012)
David Ramírez, Peter J. Schreier, Javier Vía, Ignacio Santamaría
GLRT for testing separability of a complex-valued mixture based on the Strong Uncorrelating Transform. MLSP (2012)
Gonzalo Vazquez-Vilar, David Ramírez, Roberto López-Valcarce, Javier Vía, Ignacio Santamaría
Spatial rank estimation in cognitive radio networks with uncalibrated multiple antennas. CogART (2011)
Óscar González, David Ramírez, Ignacio Santamaría, José Antonio García-Naya, Luis Castedo
Experimental validation of Interference Alignment techniques using a multiuser MIMO testbed. WSA (2011)
David Ramírez, Gonzalo Vazquez-Vilar, Roberto López-Valcarce, Javier Vía, Ignacio Santamaría
Detection of Rank- P Signals in Cognitive Radio Networks With Uncalibrated Multiple Antennas. IEEE Trans. Signal Process. 59 (8) (2011)
José Antonio García-Naya, Luis Castedo, Oscar Gonzalez, David Ramírez, Ignacio Santamaría
Experimental evaluation of Interference Alignment under imperfect channel state information. EUSIPCO (2011)
David Ramírez, Javier Vía, Ignacio Santamaría, Louis L. Scharf
Multiple-channel detection of a Gaussian time series over frequency-flat channels. ICASSP (2011)
Jesús Gutiérrez, Oscar Gonzalez, Jesús Pérez, David Ramírez, Luis Vielva, Jesús Ibáñez, Ignacio Santamaría
Frequency-Domain Methodology for Measuring MIMO Channels Using a Generic Test Bed. IEEE Trans. Instrum. Meas. 60 (3) (2011)
David Ramírez, Gonzalo Vazquez-Vilar, Roberto López-Valcarce, Javier Vía, Ignacio Santamaría
Multiantenna detection under noise uncertainty and primary user's spatial structure. ICASSP (2011)
David Ramírez, Javier Vía, Ignacio Santamaría, Roberto López-Valcarce, Louis L. Scharf
Multiantenna spectrum sensing: Detection of spatial correlation among time-series with unknown spectra. ICASSP (2010)
Javier Vía, David Ramírez, Ignacio Santamaría, Luis Vielva
Widely and semi-widely linear processing of quaternion vectors. ICASSP (2010)
David Ramírez, Javier Vía, Ignacio Santamaría, Louis L. Scharf
Detection of spatially correlated Gaussian time series. IEEE Trans. Signal Process. 58 (10) (2010)
Javier Vía, David Ramírez, Ignacio Santamaría
Properness and widely linear processing of quaternion random vectors. IEEE Trans. Inf. Theory 56 (7) (2010)
David Ramírez, Javier Vía, Ignacio Santamaría, Pedro M. Crespo
Entropy and Kullback-Leibler divergence estimation based on Szegö's theorem. EUSIPCO (2009)
David Ramírez, Javier Vía, Ignacio Santamaría
A generalization of the magnitude squared coherence spectrum for more than two signals: definition, properties and estimation. ICASSP (2008)
Ignacio Santamaría, Victor Elvira, Javier Vía, David Ramírez, Jesús Pérez, Jesús Ibáñez, R. Eickoff, Frank Ellinger
Optimal MIMO transmission schemes with adaptive antenna combining in the RF path. EUSIPCO (2008)
David Ramírez, Ignacio Santamaría, Jesús Pérez, Javier Vía, José Antonio García-Naya, Tiago M. Fernández-Caramés, Héctor J. Pérez-Iglesias, Miguel González-López, Luis Castedo, José M. Torres-Royo
A comparative study of STBC transmissions at 2.4 GHz over indoor channels using a 2 × 2 MIMO testbed. Wirel. Commun. Mob. Comput. 8 (9) (2008)
David Ramírez, Ignacio Santamaría, Jesús Pérez, Javier Vía, Antonio Tazón, José Antonio García-Naya, Tiago M. Fernández-Caramés, M. Gonzalez Lopez, Héctor Pérez-Iglesias, Luis Castedo
A Flexible Testbed for the Rapid Prototyping of MIMO Baseband Modules. ISWCS (2006)
Javier Vía, Ignacio Santamaría, Jesús Pérez, David Ramírez
Blind Decoding of MISO-OSTBC Systems Based on Principal Component Analysis. ICASSP (4) (2006)