Results 71 to 80 of about 217,902 (307)

Non-parametric linear time-invariant system identification by discrete wavelet transforms

, 2006
We describe the use of the discrete wavelet transform (DWT) for non-parametric linear time-invariant system identification. Identification is achieved by using a test excitation to the system under test (SUT) that also acts as the analyzing function for ...
Luk, RWP, Luk, R. W.-P., Damper, R. I., Damper, RI   +3 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Trends in Adaptive Array Processing

International Journal of Antennas and Propagation, 2012
Enormous progress has been made during the past five decades in the area of adaptive array processing. Increased computational power has resulted in many practical applications of optimum algorithms.
Hema Singh, Rakesh Mohan Jha
doaj   +1 more source

A New Approach to Adaptive Signal Processing

Indonesian Journal of Electrical Engineering and Informatics (IJEEI), 2015
A unified linear algebraic approach to adaptive signal processing (ASP) is presented. Starting from just Ax=b, key ASP algorithms are derived in a simple, systematic, and integrated manner without requiring any background knowledge to the field. Algorithms covered are Steepest Descent, LMS, Normalized LMS, Kaczmarz, Affine Projection, RLS, Kalman ...
openaire   +2 more sources

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

A novel sparse recovery space‐time adaptive processing algorithm using the log‐sum penalty to approximate the ℓ0 − norm penalty

IET Radar, Sonar & Navigation
Applying the sparse recovery (SR) technique to airborne radar space‐time adaptive processing (STAP) can greatly reduce the number of required training samples, which is advantageous in detecting targets in non‐homogeneous and non‐stationary clutter ...
Kun Liu, Tong Wang
doaj   +1 more source

A hybrid method for the design of oversampled uniform DFT filter banks

, 2006
Subband adaptive filters have been proposed to speed up the convergence and to lower the computational complexity of time domain adaptive filters.
Grbiä , N, Teo, Kok Ley, Teo, KL, Nordholm, Sven, Teo, Kok, Teo, K.L., Nordholm, S, Grbić, N, Yiu, Ka Fai Cedric, Yiu, Ka, Yiu, KFC, Grbic, Nedelko, Yui, K.F.C   +12 more
core   +1 more source

Signal waveform estimation in the presence of uncertainties about the steering vector [PDF]

, 2004
We consider the problem of signal waveform estimation using an array of sensors where there exist uncertainties about the steering vector of interest. This problem occurs in many situations, including arrays undergoing deformations, uncalibrated arrays ...
Chalus, Christophe, Monakov, Andrei, Besson, Olivier   +2 more
core   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Adaptive interference mitigation space‐time array reconfiguration by joint selection of antenna and delay tap

IET Radar, Sonar & Navigation
Space‐time adaptive processing (STAP) array has found extensive use in the global navigation satellite system for interference suppression. Nevertheless, the conventional space‐time array necessitates multiple antennas and time delay taps, resulting in a
Yandong Sun, Jian Xie, Yanyun Gong, Zhaolin Zhang, Ling Wang   +4 more
doaj   +1 more source