Adaptive algorithms for receivers employing antenna arrays have recently received significant attention for radar systems applications. In the majority of these algorithms, the covariance matrix for the clutter-plus-noise is characterized by using samples taken from range cells surrounding the test cell. If the underlying covariance matrix of the test cell is different from the average covarian...

RÉSUMÉ. Ce papier décrit l’intérêt de l’apport des processus SIRV (processus gaussiens composés) pour la détection et l’estimation dans le cadre de la détection de cibles mobiles (STAP). Ces processus permettent de manière élégante et efficace d’étendre au problème STAP la théorie de la détection et de l’estimation dans un cadre de bruit additif (fouillis) hétérogène et/ou non gaussien. Nous pr...

Non-cooperative moving target appear defocused in SAR image due to the lack of knowledge of the relative motion between radar platform and moving target. The spreading effect induced by uncompensated target motion leads to a low detection capabilities especially in the case of ground moving target where the target returns is lower compared to the clutter return. Moreover in the case of bistatic...

This paper proposes an extended version of the Maximum Likelihood Estimation Detector (MLED) that can operate in severe heterogeneous environment for slow moving target detection in ground clutter using space-time adaptive processing (STAP). Unlike the MLED, the extended version called StopP-Band APES does not suffer from the high Doppler resolution properties of the MLED leading to severe extr...

In this paper, we introduce a new noise robust representation of speech signal obtained by locating points of potential importance in the spectrogram, and parameterizing the activity of time-frequency pattern around those points. These features are referred to as Spectro-Temporal Activity Pattern (STAP) features. The suitability of these features for noise robust speech recognition is examined ...

(Les applications militaires du traitement adaptatif espace-temps) The material in this publication was assembled to support a Lecture Series under the Single copies of this publication or of a part of it may be made for individual use only. The approval of the RTA Information Management and Systems Branch is required for more than one copy to be made or an extract included in another publicati...

A direct data-domain (D3) least-squares space-time adaptive-processing (STAP) approach is presented for adaptively enhancing signals in a non-homogeneous environment of jammers, clutter, and thermal noise, utilizing a circular antenna array. The non-homogeneous environment may consist of non-stationary clutter. The D3 approach is applied directly to the data collected by a circular antenna arra...