搜索结果: 1-5 共查到“信息科学与系统科学 SIGNALS”相关记录5条 . 查询时间(0.081 秒)
Recovery of Sparse 1-D Signals from the Magnitudes of their Fourier Transform
Recovery of Sparse 1-D Signals the Magnitudes their Fourier Transform Information Theory
2012/6/27
The problem of signal recovery from the autocorrelation, or equivalently, the magnitudes of the Fourier transform, is of paramount importance in various fields of engineering. In this work, for one-di...
Sparse approximation property and stable recovery of sparse signals from noisy measurements
Sparse approximation property noisy measurements Information Theory
2011/9/21
Abstract: In this paper, we introduce a sparse approximation property of order $s$ for a measurement matrix ${\bf A}$: $$\|{\bf x}_s\|_2\le D \|{\bf A}{\bf x}\|_2+ \beta \frac{\sigma_s({\bf x})}{\sqrt...
Measurement Design for Detecting Sparse Signals
Sparse Signals Information Theory Measurement Design
2011/8/31
Abstract: We consider the problem of testing for the presence (or detection) of an unknown sparse signal in additive white noise. Given a fixed measurement budget, much smaller than the dimension of t...
Stable Restoration and Separation of Approximately Sparse Signals
Sparse signal recovery signal restoration signal separation deterministic recovery guarantee,
2011/8/23
Abstract: This paper develops new theory and algorithms to recover signals that are approximately sparse in some general (i.e., basis, frame, over-complete, or in-complete) dictionary but corrupted by...
The paper addresses the global output tracking of a class of multi-input multi-output (MIMO) nonlinear systems affected by disturbances, which are generated by a known exosystem. An adaptive controlle...