Results 71 to 80 of about 138,884 (189)

Design implementation low energy fast fourier transform/inverse fast fourier transform (FFT/IFFT) processor based on asynchronous-logic [PDF]

open access: yes, 2019
This thesis pertains to circuit designs using the promising asynchronous-logic (async) approach as opposed to the prevalent synchronous-logic (sync) approach, with emphases on low voltage operation and low energy dissipation. The circuits designed herein span from microcells and macrocells to a complete 128-point radix-2 decimation-in-time Fast ...
openaire   +2 more sources

Untitled Itemidentify HVDC system faults using Fast Fourier Transforms (FFT)

open access: yes, 2021
The main focus of this paper is to identify HVDC system faults using Fast Fourier Transforms (FFT). The transient recorded in the sending end rectifier is used to detect the type of faults. The paper attempts to classify rectifier side faults and inverter sides faults based on the magnitude of the current third order harmonic information.
openaire   +1 more source

Fast Fourier transform revisited

open access: yesLietuvos Matematikos Rinkinys, 2015
Using FFT (fast Fourier transform), it is assumed, that some signal samples in a respective period N are updated by a sensor in real time. It is urgent for every new signal sample to have new frequency samples (f.s.).
Rimantas Pupeikis
doaj   +1 more source

A Reconfigurable Butterfly Architecture for Fourier and Fermat Transforms

open access: yes, 2006
International audienceReconfiguration is an essential part of Soft- Ware Radio (SWR) technology. Thanks to this technique, systems are designed for change in operating mode with the aim to carry out several types of computations. In this SWR context, the
Al Ghouwayel, Ali   +2 more
core   +1 more source

A general purpose subroutine for fast fourier transform on a distributed memory parallel machine [PDF]

open access: yes
One issue which is central in developing a general purpose Fast Fourier Transform (FFT) subroutine on a distributed memory parallel machine is the data distribution.
Dubey, A., Grosch, C. E., Zubair, M.
core   +1 more source

Multitasking and microtasking experience on the NA S Cray-2 and ACF Cray X-MP [PDF]

open access: yes
The fast Fourier transform (FFT) kernel of the NAS benchmark program has been utilized to experiment with the multitasking library on the Cray-2 and Cray X-MP/48, and microtasking directives on the Cray X-MP.
Raiszadeh, Farhad
core   +1 more source

Malay Rebab: Sound Analysis of the Kelantan Traditional Musical Instrument

open access: yesBioResources
The ‘Malay’ rebab is a vertical, strung chordophone played similarly to a cello. The rebab strings sit on a bridge. The bridge is placed on a buffalo intestine on the front face.
Aaliyawani Ezzerin Sinin   +5 more
doaj  

Thailand Ranat Xylophone: Analysis of the Musical Scale System

open access: yesBioResources
The ranat ek belongs to the percussion family. It consists of wooden bars suspended by cords above a boat-shaped trough resonator and is played with two mallets.
Ahmad Faudzi Musib   +3 more
doaj  

The Taishōgoto: A Japanese Stringed Musical Instrument of Nagoya

open access: yesBioResources
A taishōgoto is a Japanese instrument that combines a guitar and an autoharp with the scale buttons positioned in a piano-like pattern. Its unique design, which combines a strung zither body with a keyboard mechanism akin to a typewriter, makes it ...
Aaliyawani Ezzerin Sinin   +4 more
doaj  

NONLINEAR FREQUENCY MODULATION ANALYSIS OF GEAR SYSTEM BASED ON EXPERIMENT AND SIMULATION

open access: yesJixie qiangdu, 2019
Conventional fast Fourier transform( FFT) has been the most popular method of processing non-stationary and nonlinear signals. However,FFT has been known to be less efficient because of aliasing.
WANG Jue   +3 more
doaj  

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