In this paper we have here in the processor FFT and FFT butterfly structure, reading, writing and execution addresses. Fast Fourier Transform (FFT) coprocessor having a noticeable impact on the performance of communication systems, has been a hot topic of research for many years. FFT function over the complex numbers in a row, also known as butterfly units have to add and multiply. , FFT archit...

An integral part of FFT computation are the twiddle factors, which, in software implementations, are typically stored into RAM memory implying large memory footprint and power consumption. In this paper, we propose a novel twiddle factor generator based on reduced ROM tables. The unit supports both radix-4 and mixed-radix-4/2 FFT algorithms and several transform lengths. The unit operates at a ...

Many papers concern both the starlikeness and convexity of Bernardi integral operator. Using Nunokawa’s Lemma, we want to determine conditions for strong transform normalized analytic functions g, such that |arg{g′(z)}| <απ2 in open unit disk Δ where 0<α<2. Our results include Mocanu, Nunokawa others on Libera transform.

A large number of fast Fourier transform (FFT) algorithms exist for efficient computation of the discrete Fourier transform (DFT). In most previous benchmarking efforts, only the computation speed or the operations count have been used for assessing the efficiency of these algorithms. In this paper we provide a comprehensive comparison of several contemporary FFT algorithms on state-of-the-art ...

although elzaki transform is stronger than sumudu and laplace transforms to solve the ordinary differential equations withnon-constant coefficients, but this method does not lead to finding the answer of some differential equations. in this paper, a method is introduced to find that a differential equation by elzaki transform can be ‎solved?‎

The paper presents the problem of using neural network for military vehicle classification on the basis of ground vibration. One of the main element of the system is a unit called geophone. This unit allows to measure amplitude of ground vibration in each direction for certain period of time. The value of amplitude is used to fix the characteristic frequencies of each vehicle. If we want to fix...

In a previous work, we showed that the glottal source can be estimated from speech signals by computing the Zeros of the ZTransform (ZZT). Decomposition was achieved by separating the roots inside (causal contribution) and outside (anticausal contribution) the unit circle. In order to guarantee a correct deconvolution, time alignment on the Glottal Closure Instants (GCIs) was shown to be essent...

In a previous paper [5], two of the authors developed a method for ascribing a value to an extra unit of capacity on a telecommunications link. Specifically, they expressed the value of an extra unit of capacity as a function of current capacity, current occupancy and a planning horizon. The intention was to use this function as an ingredient in a bandwidth reallocation scheme for ensuring effi...

In a previous work, we showed that the glottal source can be estimated from speech signals by computing the Zeros of the ZTransform (ZZT). Decomposition was achieved by separating the roots inside (causal contribution) and outside (anticausal contribution) the unit circle. In order to guarantee a correct deconvolution, time alignment on the Glottal Closure Instants (GCIs) was shown to be essent...

ABSTRACT − In this paper, a new method based on Green's function theory and Fourier transform analysis has been proposed for calculating band structure with high accuracy and low processing time. This method utilizes sampling of potential energy in some points of crystal's unit cell with Dirac delta functions, then through lattice Fourier transform gives us a simple and applicable formula for m...