Results 21 to 30 of about 2,822,554 (294)
A Variable-Scale Coherent Integration Method for Moving Target Detection in Wideband Radar
Remote Sensing, 2022 Accurate integration of the extended target’s energy is one of the important challenges of moving target detection in wideband radar. In this paper, a coherent integration method for wideband radar, i.e., variable-scale moving target detection (VSMTD ...
Tingkun Lu, Feng He, Lei Yu, Manqing Wu
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Discrete Fourier transformation processor based on complex radix (−1 + j) number system
Engineering Science and Technology, an International Journal, 2017 Complex radix (−1 + j) allows the arithmetic operations of complex numbers to be done without treating the divide and conquer rules, which offers the significant speed improvement of complex numbers computation circuitry.
Anidaphi Shadap, Prabir Saha
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IET Power Electronics, 2022 Bidirectional synchronized transfer (BST) in variable frequency drive (VFD) systems implies automatic synchronization with seamless transfer of the motor to the grid or take‐over of the motor from the grid.
Ali Keshavarzian +5 more
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Pseudorandomness via the Discrete Fourier Transform [PDF]
2015 IEEE 56th Annual Symposium on Foundations of Computer Science, 2015 We present a new approach to constructing unconditional pseudorandom generators against classes of functions that involve computing a linear function of the inputs. We give an explicit construction of a pseudorandom generator that fools the discrete Fourier transforms of linear functions with seed-length that is nearly logarithmic (up to polyloglog ...
Gopalan, Parikshit +2 more
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Hybrid semi analytical method for geothermal U shaped heat exchanger
Case Studies in Thermal Engineering, 2018 In this paper, convective-conductive heat transfer processes between the all components of geothermal borehole heat exchanger (BHE) such as pipe-in, pipe-out and grout have been studied.
P. Jalili, D.D. Ganji, S.S. Nourazar
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Logarithm of the Discrete Fourier Transform
International Journal of Mathematics and Mathematical Sciences, 2007 The discrete Fourier transform defines a unitary matrix operator. The logarithm of this operator is computed, along with the projection maps onto its eigenspaces. A geometric interpretation of the discrete Fourier transform is also given.
Michael Aristidou, Jason Hanson
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Random Access Preamble Generation with Low Storage for LTE Networks
ITM Web of Conferences, 2017 Long Term Evolution (LTE) random access preambles are generated from cyclically shifted Zadoff-Chu(ZC) sequences of prime length by using so-called Discrete Fourier Transformation-Spread-Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) modulation.
Xin Pei-Zhe +3 more
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Proceedings of the International Conference on Applied Innovations in IT, 2014 In this paper we investigate various algorithms for performing Fast Fourier Transformation (FFT)/Inverse Fast Fourier Transformation (IFFT), and proper techniques for maximizing the FFT/IFFT execution speed, such as pipelining or parallel processing, and
Danijela Efnusheva +3 more
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Современная наука и инновации, 2022 When using a discrete Fourier transform (DFT) to solve digital signal processing (DSP) problems, errors occur in rounding or truncating the results of operations to the word length used by specialized processors (SP).
M. I. Kalmykov +3 more
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Trigonometric Interpolation Using the Discrete Fourier Transform [PDF]
, 2022 The Fourier transform (and all its versions, discrete/continuous/finite/infinite), covers deep and abstract mathematical concepts, and can easily overwhelm with detail.
Ponce Campuzano, Juan Carlos
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