Results 51 to 60 of about 213,281 (332)

Gravitational Wave Burst Source Direction Estimation using Time and Amplitude Information [PDF]

, 2008
In this article we study two problems that arise when using timing and amplitude estimates from a network of interferometers (IFOs) to evaluate the direction of an incident gravitational wave burst (GWB).
Carroll, E. Katsavounidis, J. Kraus, J. Markowitz, K. S. Thorne, L. Cadonati, M. Zanolin, Thompson   +7 more
core   +3 more sources

Robust prior-based Direction of Arrival estimation

2012 IEEE Statistical Signal Processing Workshop (SSP), 2012
In certain Direction of Arrival (DOA) scenarios some of the sources are approximately known a priori. It is then desirable to be able to exploit this prior knowledge when estimating the DOAs of the unknown sources. In this paper we modify an estimator utilizing exact angular prior knowledge of some sources such that the estimator is able to exploit ...
Petter Wirfält, Magnus Jansson
openaire   +3 more sources

Controlling AoA Estimation Errors in Rician Fading via Measurement Quality Classification

IEEE Access
Angle of Arrival (AoA) estimation plays a crucial role in modern positioning systems but is often affected by errors in multipath channels. Existing methods typically lack a direct mechanism to assess the quality of the estimates, while full channel ...
Pedro Lemos, Glauber Brante, Ohara Kerusauskas Rayel, Richard Demo Souza   +3 more
doaj   +1 more source

Robust direction of arrival estimation in non-Gaussian noise [PDF]

, 1998
Cataloged from PDF version of article.In this correspondence, a nonlinearly weighted least-squares method is developed for robust modeling of sensor array data.
Cadzow, J. A., Cetin, A. E., Yardimci, Y.   +2 more
core   +1 more source

Source power estimation for array processing applications under low sample size constraints [PDF]

, 2007
Copyright © 2008 IEEE. All Rights Reserved.This paper proposes a new power estimation technique for array processing applications in the low sample size regime.
Abramovich, Yuri, Johnson, Ben A., Mestre, Xavier   +2 more
core   +1 more source

Prior knowledge-based direction of arrival estimation

2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2011
In a number of direction of arrival (DOA) estimation applications there exists prior knowledge about the sources whose bearings are to be determined. We study the case when this prior information concerns some of the source positions and their correlation state, which is a relevant case in, for example, RADAR scenarios where stationary objects exists ...
Petter Wirfält, Magnus Jansson, Guillaume Bouleux, Petre Stoica   +3 more
openaire   +3 more sources

Adherence to Protocol Recommendations for Children With Wilms Tumour in Two Consecutive Studies in the United Kingdom and Ireland—Does Variation Matter?

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background and Aims Wilms tumour (WT) has excellent event‐free and overall survival (OS). However, small differences exist between countries participating in the same international study. This led us to examine variation in adherence to protocol recommendations as a potential contributing factor.
Suzanne Tugnait, R. Al‐Saadi, A. Lopez‐Cortes, K. Dzhuma, M. Oostveen, J. Brok, S. Irtan, M. Weeks, J. Bate, S. Baker, R. Williams, M. Powis, D. Saunders, O. Olsen, T. Watson, S. Shelmerdine, S. Vaidya, L. Howell, C. Duncan, G. M. Vujanic, C. Stiller, G. P. Balchin, T. Chowdhury, K. Pritchard‐Jones   +23 more
wiley   +1 more source

Comparative study for broadband direction of arrival estimation techniques [PDF]

, 2012
This paper reviews and compares three different linear algebraic signal subspace techniques for broadband direction of arrival estimation --- (i) the coherent signal subspace approach, (ii) eigenanalysis of the parameterised spatial correlation matrix ...
Alrmah, Mohamed Abubaker, Hussin, Mohammed Nuri, Lambotharan, Sangarapillai, Weiss, Stephan   +3 more
core  

‘They Need to Hear You Say It’: Healthcare Professionals’ Perspectives on Barriers and Enablers to End‐of‐Life Discussions With Adolescents and Young Adults With Cancer

Pediatric Blood &Cancer, EarlyView.
ABSTRACT End‐of‐life conversations with adolescents and young adults (AYAs) with cancer rarely occur without the guidance of healthcare professionals. As a part of the ‘Difficult Discussions’ study, focused on palliative care and advance care planning discussions with AYAs with cancer, we investigated the factors that healthcare professionals identify ...
Justine Lee, Holly Evans, Claire E. Wakefield, Antoinette Anazodo, Richard J. Cohn, Brittany C. McGill, Elizabeth A. Lobb, Lori Wiener, Madeleine L. Juhrmann, Ursula M. Sansom‐Daly   +9 more
wiley   +1 more source

Comparative Study between Several Direction of Arrival Estimation Methods

Journal of Telecommunications and Information Technology, 2014
In this paper a comparative study, restricted to one-dimensional stationary case, between several Direction of Arrival (DOA) estimation algorithms of narrowband signals is presented.
Youssef Khmou, Said Safi, Miloud Frikel
doaj   +1 more source