Fast inverse covariance matrix computation based on element-order recursive method for space-time adaptive processing
نویسندگان
چکیده
منابع مشابه
Structured covariance estimation for space-time adaptive processing
Adaptive algorithms require a good estimate of the interference covariance matrix. In situations with limited sample support such an estimate is not available unless there is structure to be exploited. In applications such as space-time adaptive processing (STAP) the underlying covariance matrix is structured (e.g., block Toeplitz), and it is possible to exploit this structure to arrive at impr...
متن کاملDesign of MIMO radar waveform covariance matrix for Clutter and Jamming suppression based on space time adaptive processing
This paper studies the optimization of waveform covariance matrix (WCM) for airborne multiple-input-multiple-output (MIMO) radar systems in the presence of clutter and jamming. The goal is to enhance the target detection performance by suppressing the clutter and jamming based on space time adaptive processing (STAP). We employ the signal-to-interference-plus-noise ratio (SINR) as the figure of...
متن کاملAdaptive First-Order Methods for General Sparse Inverse Covariance Selection
In this paper, we consider estimating sparse inverse covariance of a Gaussian graphical model whose conditional independence is assumed to be partially known. Similarly as in [5], we formulate it as an l1-norm penalized maximum likelihood estimation problem. Further, we propose an algorithm framework, and develop two first-order methods, that is, the adaptive spectral projected gradient (ASPG) ...
متن کاملA Modified Fast Approximated Power Iteration Subspace Tracking Method for Space-Time Adaptive Processing
We propose a subspace-tracking-based space-time adaptive processing technique for airborne radar applications. By applying a modified approximated power iteration subspace tracing algorithm, the principal subspace in which the clutter-plus-interference reside is estimated. Therefore, the moving targets are detected by projecting the data on the minor subspace which is orthogonal to the principa...
متن کاملThe fast recursive computation of Tchebichef moment and its inverse transform based on Z-transform
Article history: Available online 15 May 2013
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science China Information Sciences
سال: 2015
ISSN: 1674-733X,1869-1919
DOI: 10.1007/s11432-014-5250-1