#### Filter Results:

- Full text PDF available (8)

#### Publication Year

1996

2011

- This year (0)
- Last 5 years (0)
- Last 10 years (10)

#### Publication Type

#### Co-author

#### Journals and Conferences

Learn More

- Yuri I. Abramovich, Nicholas K. Spencer, Alexei Gorokhov
- IEEE Trans. Signal Processing
- 1998

This paper considers the problem of direction-ofarrival (DOA) estimation for multiple uncorrelated plane waves incident on so-called “fully augmentable” sparse linear arrays. In situations where a… (More)

This paper considers the problem of DOA (direction-ofarrival) estimation for multiple uncorrelated plane waves incident upon so-called "fully-augmentable'' sparse linear arrays. When the number of… (More)

- Yuri I. Abramovich, Nicholas K. Spencer
- 2007 IEEE International Conference on Acoustics…
- 2007

Instead of a "hard" decision on ignoring "outlier" training samples in constructing the covariance matrix estimate, we propose a "softer" method that reduces the impact of such abnormal data samples… (More)

- Yuri I. Abramovich, Nicholas K. Spencer, Michael D. E. Turley
- IEEE Transactions on Signal Processing
- 2007

We consider the adaptive radar problem where the properties of the (nonstationary) clutter signals can be estimated using multiple observations of radar returns from a number of sufficiently… (More)

Order Estimation and Discrimination Between Stationary and Time-Varying (TVAR) Autoregressive Models

- Yuri I. Abramovich, Nicholas K. Spencer, Michael D. E. Turley
- IEEE Transactions on Signal Processing
- 2007

For a set of T independent observations of the same N-variate correlated Gaussian process, we derive a method of estimating the order of an autoregressive (AR) model of this process, regardless of… (More)

- Yuri I. Abramovich, Nicholas K. Spencer, Alexei Gorokhov
- IEEE Trans. Signal Processing
- 2001

- Yuri I. Abramovich, Nicholas K. Spencer, Alexei Gorokhov
- IEEE Trans. Signal Processing
- 1999

This paper addresses the problem of ambiguities in direction-of-arrival (DOA) estimation for nonuniform (sparse) linear arrays. Usually, DOA estimation ambiguities are associated with linear… (More)

- Yuri I. Abramovich, O. A. Gray, Alexei Gorokhov, Nicholas K. Spencer
- 1996 8th European Signal Processing Conference…
- 1996

Three subclasses of geometries for nonuniform linear antenna arrays with a fixed number of sensors are compared in the sense of maximum possible direction-of-arrival (DOA) estimation accuracy.… (More)

- Yuri I. Abramovich, Nicholas K. Spencer
- 2004 IEEE International Conference on Acoustics…
- 2004

We continue to develop a technique based on the generalised likelihood-ratio test (GLRT) that is capable of identifying and rectifying direction-of-arrival (DOA) estimation outliers that arise with… (More)

- Yuri I. Abramovich, Ben A. Johnson, Nicholas K. Spencer
- IEEE Transactions on Signal Processing
- 2008

In a series of two papers, a new class of parametric models for two-dimensional multivariate (matrix-valued, space-time) adaptive processing is introduced. This class is based on the maximum-entropy… (More)