Results 11 to 20 of about 162,308 (216)

Multidimensional sampling theorems for multivariate discrete transforms

open access: yesAdvances in Difference Equations, 2021
This paper is devoted to the establishment of two-dimensional sampling theorems for discrete transforms, whose kernels arise from second order partial difference equations.
H. A. Hassan
doaj   +1 more source

Optimization of food sampling inspection based on discrete sparrow search algorithm

open access: yesZhongguo shipin weisheng zazhi, 2021
ObjectiveTo propose an efficient optimized method for food sampling inspection based on discrete sparrow search algorithm.MethodsBy coding the sampling points, calculating and optimizing the paths between different codes, a discrete sparrow search ...
WANG Jianxin, LI Tengxu, WANG Yeru
doaj   +1 more source

On recursive expressions for statistics of decimated sequences

open access: yesLietuvos Matematikos Rinkinys, 2021
In what follows we introduce the recursive approach for calculating statistical moments of decimated realizations. We prove the corollaries referring to recursive calculation and present an example for any realization of 17 sample.
Rimantas Pupeikis
doaj   +1 more source

Acoustic Localization for a Moving Source Based on Cross Array Azimuth

open access: yesApplied Sciences, 2018
Acoustic localization for a moving source plays a key role in engineering applications, such as wildlife conservation and health protection. Acoustic detection methods provide an alternative to traditional radar and infrared detection methods.
Junhui Yin, Chao Xiong, Wenjie Wang
doaj   +1 more source

Robust Adaptive Beamforming Based on Low-Complexity Discrete Fourier Transform Spatial Sampling

open access: yesIEEE Access, 2021
In this paper, a novel and robust algorithm is proposed for adaptive beamforming based on the idea of reconstructing the autocorrelation sequence (ACS) of a random process from a set of measured data.
Saeed Mohammadzadeh   +3 more
doaj   +1 more source

Multiloop Multirate Continuous-Discrete Drone Stabilization System: An Equivalent Single-Rate Model

open access: yesDrones, 2021
The article discusses the UAV lateral motion stabilization system, as a MIMO multiloop multirate continuous-discrete system, specified in the form of an input–output model in the domain of discrete Laplace transform or in the form of a structural diagram.
Vadim Kramar   +2 more
doaj   +1 more source

Segmented discrete polynomial-phase transform with coprime sampling

open access: yesThe Journal of Engineering, 2019
Segmented discrete polynomial-phase transform (DPT) integrates input signals to enable detection and parameter estimation of weak linear frequency modulated (LFM) signals.
Shengheng Liu, Yahui Ma, Tao Shan
doaj   +1 more source

The Discrete Load Frequency Control System Using a Robust Periodic Output Feedback Controller

open access: yesJournal of Electrical and Computer Engineering, 2023
The load frequency control (LFC) is a most important tool for the frequency regulation mechanism in the widely spread modern power system. The LFC system consists of a communication structure to transmit the measurement and control signal.
Hukam Chand Kumawat   +6 more
doaj   +1 more source

VERIFICATION OF DISCRETE MODELS OF HYDROLITHOSPHERIC PROCESSES

open access: yesСовременная наука и инновации, 2022
The article considers the method of verification of discrete models of hydrolithospheric processes using the results of experimental filtration work.
I. M. Pershin   +2 more
doaj   +1 more source

Multi-focus Image Fusion Based on Non-subsampled Discrete Wavelet Transform

open access: yesJournal of Harbin University of Science and Technology, 2018
Image fusion is widely used in military,medical and other fields. Image fusion technology is to use a specific algorithm to synthesize two or more images into a new image.
GUO Ling-xin, YUAN Li-ying, WANG Fei-yue
doaj   +1 more source

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