Results 41 to 50 of about 1,512,106 (277)

Particle filtering based semi-blind estimation for MIMO-OFDM time-varying channel

Tongxin xuebao, 2007
A semi-blind channel estimation method based on the particle filtering was proposed for the MIMO-OFDM wireless communication system.By optimizing the particles distribution locally,the traditional particle filtering algorithm was modified,and a local ...
JING Yuan, YIN Fu-liang, ZENG Shuo
doaj   +2 more sources

Linear and nonlinear filtering in mathematical finance: a review [PDF]

, 2010
Copyright @ The Authors 2010This paper presents a review of time series filtering and its applications in mathematical finance. A summary of results of recent empirical studies with market data are presented for yield curve modelling and stochastic ...
Date, P, Ponomareva, K, P. Date, K. Ponomareva   +3 more
core   +1 more source

Research on the method of information system risk state estimation based on clustering particle filter

Open Physics, 2017
With the purpose of reinforcing correlation analysis of risk assessment threat factors, a dynamic assessment method of safety risks based on particle filtering is proposed, which takes threat analysis as the core.
Cui Jia, Hong Bei, Jiang Xuepeng, Chen Qinghua   +3 more
doaj   +1 more source

Log-PF: Particle Filtering in Logarithm Domain

Journal of Electrical and Computer Engineering, 2018
This paper presents a particle filter, called Log-PF, based on particle weights represented on a logarithmic scale. In practical systems, particle weights may approach numbers close to zero which can cause numerical problems.
Christian Gentner, Siwei Zhang, Thomas Jost   +2 more
doaj   +1 more source

Study on the Optimized Muffler with Function of PM Filtration for Non-Road Diesel Engines

Atmosphere, 2022
With a high thermal efficiency, high reliability and good fuel economy, diesel engines have been widely used. However, with the increasingly stringent standards regarding non-road diesel engine emissions, diesel engines can hardly satisfy the particle ...
Long Feng, Lizhuang Dou, Xiang Wen, Mingfei Mu, Xiaotong Ma, Bisheng Chen, Chao Shi, Xiude Hu   +7 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

Track-Before-Detect Algorithm Based on Improved Auxiliary Particle PHD Filter under Clutter Background

Leida xuebao, 2019
Under the clutter background condition, the existing particle filter pre-detection tracking algorithm based on Probability Hypothesis Density (PHD) filtering is not accurate enough to estimate the number of targets in dense multi-objectives.
PEI Jiazheng, HUANG Yong, DONG Yunlong, HE You, CHEN Xiaolong   +4 more
doaj   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

FEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang, Hyo Been Jin, Chang Min Kim, So Yeon Lee, Hyun Ho Park   +4 more
wiley   +1 more source

Applying sequential Monte Carlo methods into a distributed hydrologic model: lagged particle filtering approach with regularization [PDF]

Hydrology and Earth System Sciences, 2011
Data assimilation techniques have received growing attention due to their capability to improve prediction. Among various data assimilation techniques, sequential Monte Carlo (SMC) methods, known as "particle filters", are a Bayesian learning process ...
S. J. Noh, Y. Tachikawa, M. Shiiba, S. Kim   +3 more
doaj   +1 more source