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ORCIDNicholas K. Spencer
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Journal Articles
- 2021
[j19]Will Abramson
, Nicky Hickman, Nick Spencer:
Evaluating Trust Assurance in Indy-Based Identity Networks Using Public Ledger Data. Frontiers Blockchain 4: 622090 (2021)- 2011
- [j18]Yuri I. Abramovich, Muralidhar Rangaswamy, Ben A. Johnson, Phillip M. Corbell, Nicholas K. Spencer:
Performance Analysis of Two-Dimensional Parametric STAP for Airborne Radar using KASSPER Data. IEEE Trans. Aerosp. Electron. Syst. 47(1): 118-139 (2011) - 2008
- [j17]Yuri I. Abramovich, Ben A. Johnson, Nicholas K. Spencer:
Two-Dimensional Multivariate Parametric Models for Radar Applications - Part I: Maximum-Entropy Extensions for Toeplitz-Block Matrices. IEEE Trans. Signal Process. 56(11): 5509-5526 (2008) - [j16]Yuri I. Abramovich, Ben A. Johnson, Nicholas K. Spencer:
Two-Dimensional Multivariate Parametric Models for Radar Applications - Part II: Maximum-Entropy Extensions for Hermitian-Block Matrices. IEEE Trans. Signal Process. 56(11): 5527-5539 (2008) - 2007
- [j15]Yuri I. Abramovich, Nicholas K. Spencer, Alexei Y. Gorokhov:
GLRT-Based Threshold Detection-Estimation Performance Improvement and Application to Uniform Circular Antenna Arrays. IEEE Trans. Signal Process. 55(1): 20-31 (2007) - [j14]Yuri I. Abramovich, Nicholas K. Spencer, Michael D. E. Turley:
Time-Varying Autoregressive (TVAR) Models for Multiple Radar Observations. IEEE Trans. Signal Process. 55(4): 1298-1311 (2007) - [j13]Yuri I. Abramovich, Nicholas K. Spencer, Michael D. E. Turley:
Order Estimation and Discrimination Between Stationary and Time-Varying (TVAR) Autoregressive Models. IEEE Trans. Signal Process. 55(6-2): 2861-2876 (2007) - 2005
- [j12]Yuri I. Abramovich, Nicholas K. Spencer, Alexei Y. Gorokhov:
Bounds on maximum likelihood ratio-Part II: application to antenna array detection-estimation with imperfect wavefront coherence. IEEE Trans. Signal Process. 53(6): 2046-2058 (2005) - 2004
- [j11]Yuri I. Abramovich, Nicholas K. Spencer, Pavel Turcaj:
Two-set adaptive detection-estimation of Gaussian sources in Gaussian noise. Signal Process. 84(9): 1537-1560 (2004) - [j10]Yuri I. Abramovich, Nick Spencer, Alexei Y. Gorokhov:
Bounds on maximum likelihood ratio-part I: application to antenna array detection-estimation with perfect wavefront coherence. IEEE Trans. Signal Process. 52(6): 1524-1536 (2004) - 2003
- [j9]Yuri I. Abramovich, Nicholas K. Spencer, Alexei Y. Gorokhov:
Detection-estimation of more uncorrelated Gaussian sources than sensors in nonuniform linear antenna arrays. II. Partially augmentable arrays. IEEE Trans. Signal Process. 51(6): 1492-1507 (2003) - [j8]Yuri I. Abramovich, Nicholas K. Spencer, Alexei Y. Gorokhov:
Detection-estimation of more uncorrelated Gaussian sources than sensors in nonuniform linear antenna arrays - part III: detection-estimation nonidentifiability. IEEE Trans. Signal Process. 51(10): 2483-2494 (2003) - 2001
- [j7]Yuri I. Abramovich, Nicholas K. Spencer, Alexei Y. Gorokhov:
Detection-estimation of more uncorrelated Gaussian sources than sensors in nonuniform linear antenna arrays .I. Fully augmentable arrays. IEEE Trans. Signal Process. 49(5): 959-971 (2001) - 2000
- [j6]Yuri I. Abramovich, Nicholas K. Spencer:
Design of Nonuniform Linear Antenna Array Geometry and Signal Processing Algorithm for DOA Estimation of Gaussian Sources. Digit. Signal Process. 10(4): 340-354 (2000) - [j5]Yuri I. Abramovich, Nicholas K. Spencer, Stuart J. Anderson:
Stochastic-constraints method in nonstationary hot-clutter cancellation. II. Unsupervised training applications. IEEE Trans. Aerosp. Electron. Syst. 36(1): 132-150 (2000) - [j4]Yuri I. Abramovich, Nicholas K. Spencer, Alexei Y. Gorokhov:
DOA estimation for noninteger linear antenna arrays with more uncorrelated sources than sensors. IEEE Trans. Signal Process. 48(4): 943-955 (2000) - 1999
- [j3]Yuri I. Abramovich, Nicholas K. Spencer, Alexei Y. Gorokhov:
Positive-definite Toeplitz completion in DOA estimation for nonuniform linear antenna arrays. II. Partially augmentable arrays. IEEE Trans. Signal Process. 47(6) (1999) - [j2]Yuri I. Abramovich, Nicholas K. Spencer, Alexei Y. Gorokhov:
Resolving manifold ambiguities in direction-of-arrival estimation for nonuniform linear antenna arrays. IEEE Trans. Signal Process. 47(10): 2629-2643 (1999) - 1998
- [j1]Yuri I. Abramovich, Douglas A. Gray, Alexei Y. Gorokhov, Nicholas K. Spencer:
Positive-definite Toeplitz completion in DOA estimation for nonuniform linear antenna arrays. I. Fully augmentable arrays. IEEE Trans. Signal Process. 46(9): 2458-2471 (1998)
Conference and Workshop Papers
- 2009
- [c20]Yuri I. Abramovich, Ben A. Johnson, Nicholas K. Spencer:
Statistical nonidentifiability of close emitters: Maximum-likelihood estimation breakdown. EUSIPCO 2009: 1968-1972 - [c19]Yuri I. Abramovich, Ben A. Johnson, Nick Spencer:
Statistical nonidentifiability of close emitters: Maximum-likelihood estimation breakdown and its GSA analysis. ICASSP 2009: 2133-2136 - 2007
- [c18]Yuri I. Abramovich, Nicholas K. Spencer:
Diagonally Loaded Normalised Sample Matrix Inversion (LNSMI) for Outlier-Resistant Adaptive Filtering. ICASSP (3) 2007: 1105-1108 - 2004
- [c17]Yuri I. Abramovich, Nick Spencer:
Performance breakdown of subspace-based methods in arbitrary antenna arrays: GLRT-based prediction and cure. ICASSP (2) 2004: 117-120 - [c16]Nicholas K. Spencer, Yuri I. Abramovich:
Performance analysis of DOA estimation using uniform circular antenna arrays in the threshold region. ICASSP (2) 2004: 233-236 - 2002
- [c15]Yuri I. Abramovich, Nicholas K. Spencer:
DOA estimation performance breakdown: A new approach to prediction and cure. EUSIPCO 2002: 1-4 - [c14]Yuri I. Abramovich, Nicholas K. Spencer, Alexei Y. Gorokhov:
A lower bound for the maximum likelihood ratio: Sparse antenna array applications. ICASSP 2002: 1145-1148 - 2001
- [c13]Yuri I. Abramovich, Nicholas K. Spencer:
Locally optimal maximum-likelihood estimate of a Toeplitz matrix of given rank. ICASSP 2001: 3113-3116 - [c12]Yuri I. Abramovich, Nicholas K. Spencer:
Detection nonidentifiability for independent Gaussian sources in nonuniform linear antenna arrays. ISSPA 2001: 116-119 - 2000
- [c11]Yuri I. Abramovich, Nicholas K. Spencer:
Detection-estimation of more uncorrelated Gaussian sources than sensors using partially augmentable sparse antenna arrays. EUSIPCO 2000: 1-4 - [c10]Yuri I. Abramovich, Vladimir Gaitsgory, Nicholas K. Spencer:
Stability of manifold ambiguity resolution in DOA estimation with nonuniform linear antenna arrays. ICASSP 2000: 3117-3120 - 1999
- [c9]Yuri I. Abramovich, Nicholas K. Spencer, Alexei Y. Gorokhov:
Identifiability and manifold ambiguity in DOA estimation for nonuniform linear antenna arrays. ICASSP 1999: 2845-2848 - [c8]Yuri I. Abramovich, Nicholas K. Spencer, Vladimir Gaitsgory:
Instability in DOA manifold ambiguity resolution. ISSPA 1999: 893-895 - [c7]Nicholas K. Spencer:
Nonlinear signal processing and nonuniform linear antenna array design for DOA estimation of coherent sources. NSIP 1999: 849-853 - 1998
- [c6]Yuri I. Abramovich, Nicholas K. Spencer:
DOA outlier mitigation for generalised spatial smoothing. EUSIPCO 1998: 1-4 - [c5]Yuri I. Abramovich, Nicholas K. Spencer:
Generalised spatial smoothing using partial arrays for multiple target bearing estimation. ICASSP 1998: 2061-2064 - 1997
- [c4]Yuri I. Abramovich, Nicholas K. Spencer, Alexei Y. Gorokhov:
Generalised augmentation approach for arbitrary linear antenna arrays. ICASSP 1997: 3757-3760 - 1996
- [c3]Yuri I. Abramovich, O. A. Gray, Alexei Y. Gorokhov, Nicholas K. Spencer:
Comparison of DOA estimation performance for various types of sparse antenna array geometries. EUSIPCO 1996: 1-4 - [c2]Yuri I. Abramovich, Douglas A. Gray, Alexei Y. Gorokhov, Nicholas K. Spencer:
Positive-definite Toeplitz completion in DOA estimation for fully-augmentable nonuniform linear antenna arrays. ICASSP 1996: 2551-2554 - [c1]Yuri I. Abramovich, Douglas A. Gray, Nicholas K. Spencer, Alexei Y. Gorokhov:
Ambiguities In Direction-Of-Arrival Estimation for Nonuniform Linear Antenna Arrays. ISSPA 1996: 630-633
Informal and Other Publications
- 2019
- [i1]Thomas R. Etherington, Ben Jolly, Jan Zörner, Nick Spencer:
A research institution framework for publishing open code to enable reproducible science. PeerJ Prepr. 7: e27762 (2019)
Coauthor Index
aka: Alexei Y. Gorokhov
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