Results 41 to 50 of about 439,932 (196)

Effects of Multirate Systems on the Statistical Properties of Random Signals [PDF]

open access: yes, 1993
In multirate digital signal processing, we often encounter time-varying linear systems such as decimators, interpolators, and modulators. In many applications, these building blocks are interconnected with linear filters to form more complicated systems.
Sathe, Vinay P., Vaidyanathan, P. P.
core   +2 more sources

Scale-dependent enstrophy production rates in a turbulent boundary layer

open access: yesJournal of Fluid Science and Technology, 2019
Coarse-graining is indispensable for extracting a hierarchy of vortices in fully developed turbulent flow with multiscale nature. In the present study, for a high-Reynolds-number turbulent boundary layer, we employ two simple coarse-graining methods in ...
Yutaro MOTOORI, Susumu GOTO
doaj   +1 more source

Overview of intelligent optimization algorithm design of FIR digital filter

open access: yesDianzi Jishu Yingyong, 2021
This article summarizes the intelligent optimization algorithm of finite impulse response digital filter(FIR). The main idea of optimization design is to transform the digital filter design problem into the error function minimization problem.
Zhang Shuyu, Wang Ting
doaj   +1 more source

A simple transformation of improved WLAN band pass to low pass filter using defected ground structure (DGS), defected microstrip structure (DMS) and multilayer-technique

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
A novel transformation of band pass- to low pass filter is introduced in this paper. First a compact microstrip band pass filter designed, optimized and realized by combining a simple multilayer method with magnetically coupled microstrip U-shaped DGS ...
A. Boutejdar   +3 more
doaj   +1 more source

A stepped-impedance bandstop filter with extended upper passbands and improved pass-band reflections

open access: yesAIP Advances, 2016
A high-performance planar bandstop filter with extended upper passbands and improved pass-band return loss is proposed in this article. In this proposed bandstop filter, a novel three-section stepped-impedance structure is suggested to improve the pass ...
Xiaoying Zuo, Jianguo Yu
doaj   +1 more source

Design of UWB Band-pass Filters with GPS Band Rejection

open access: yesJournal of Measurement Science and Instrumentation, 2010
This paper presents a compact Ultra-Wideband(UWB)band-pass filter using a high-pass filter and a low-pass one,and the resonator with lumped elements.The structure of our proposed band-pass filter is very simple and the Defected Ground Structure(DGS ...
Seung-back JUNG, Seung-in YANG
doaj  

A Reconfigurable-Band Analog Filter Standard-Cell Based on Differential/Single Input Signaling

open access: yesIEEE Access
This work presents a reconfigurable-band analog filter capable of performing the low-pass, high-pass, band-pass or all-pass functions. The proposed filter is a simple and compact cell composed of only two RC networks and one differential Operational ...
Alejandro Diaz-Sanchez   +4 more
doaj   +1 more source

New Universal Current-mode Biquad Using Only Three ZC-CFTAs [PDF]

open access: yes, 2012
The objective of this paper is to present a new universal Current-mode biquad capable of providing all the five basic filter functions, namely, low pass (LP), Band pass (BP), high pass (HP), Band reject (BR) and all pass (AP) from the same configuration ...
Senani, Raj   +2 more
core   +1 more source

Innovative Demodulation Scheme for Coherent Detectors in CMB Experiments

open access: yes, 2012
We propose an innovative demodulation scheme for coherent detectors used in cosmic microwave background polarization experiments. Removal of non-white noise, e.g., narrow-band noise, in detectors is one of the key requirements for the experiments.
Chinone, Y.   +5 more
core   +1 more source

Efficient reconstruction of band-limited sequences from nonuniformly decimated versions by use of polyphase filter banks [PDF]

open access: yes, 1990
An efficient polyphase structure for the reconstruction of a band-limited sequence from a nonuniformly decimated version is developed. Theoretically, the reconstruction involves the implementation of a bank of multilevel filters, and it is shown that how
Liu, Vincent C., Vaidyanathan, P. P.
core   +1 more source

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