This is a simple one dimensional Fast Fourier Transform (and Inverse FFT) test program. FFT(and Inverse FFT) is implemeted as a function. 2^n-point FFT is possible.
標(biāo)簽： dimensional FFT Transform and
上傳時(shí)間： 2017-07-23
上傳用戶：xg262122
Fast Fourier Transform using MPI libraries (Source Code)
標(biāo)簽： Transform libraries Fourier Source
上傳時(shí)間： 2017-07-30
上傳用戶：manking0408
A basic Fourier transform identity coupled with an iterative convergence algorithm provides a powerful method to align band-limited signals.
標(biāo)簽： convergence algorithm transform iterative
上傳時(shí)間： 2017-08-03
上傳用戶：hphh
Short Fourier Transform for a non periodical signal
標(biāo)簽： periodical Transform Fourier signal
上傳時(shí)間： 2017-08-08
上傳用戶：yoleeson
A short-time Fourier transform based symbol timing approach for OFDM systems
標(biāo)簽： short-time transform approach Fourier
上傳時(shí)間： 2013-12-13
上傳用戶：playboys0
This article describes a new efficient implementation of the Cooley-Tukey fast Fourier transform (FFT) algorithm using C++ template metaprogramming. Thank to the recursive nature of the FFT, the source code is more readable and faster than the classical implementation. The efficiency is proved by performance benchmarks on different platforms.
標(biāo)簽： implementation Cooley-Tukey describes efficient
上傳時(shí)間： 2013-12-23
上傳用戶：netwolf
Fast Fourier Transform in C
標(biāo)簽： Transform Fourier Fast in
上傳時(shí)間： 2014-01-05
上傳用戶：lhw888
In this paper we revisit hybrid analog-digital precoding systems with emphasis on their modelling and radio-frequency (RF) losses, to realistically evaluate their benefits in 5G system implementations. For this, we decompose the analog beamforming networks (ABFN) as a bank of commonly used RF components and formulate realistic model constraints based on their S-parameters. Specifically, we concentrate on fully-connected ABFN (FC-ABFN) and Butler networks for implementing the discrete Fourier transform (DFT) in the RF domain. The results presented in this paper reveal that the performance and energy efficiency of hybrid precoding systems are severely affected, once practical factors are considered in the overall design. In this context, we also show that Butler RF networks are capable of providing better performances than FC-ABFN for systems with a large number of RF chains.
標(biāo)簽： Analog-Digital Precoding Hybrid
上傳時(shí)間： 2020-05-27
上傳用戶：shancjb
Before delving into the details of orthogonal frequency division multiplexing (OFDM), relevant background material must be presented first. The purpose of this chapter is to provide the necessary building blocks for the development of OFDM principles. Included in this chapter are reviews of stochastic and random process, discrete-time signals and systems, and the Discrete Fourier Transform (DFT). Tooled with the necessary mathematical foundation, we proceed with an overview of digital communication systems and OFDM communication systems. We conclude the chapter with summaries of the OFDM wireless LAN standards currently in existence and a high-level comparison of single carrier systems versus OFDM.
上傳時(shí)間： 2020-05-31
上傳用戶：shancjb
IEEE Std 1180-1990. IEEE Standard Specifications for the Implementations of 8x8 Inverse Discrete Cosine Transform, specifies the numerical characteristics of the 8x8 inverse discrete cosine transform (IDCT) for use in visual telephony and similar applications where the 8x8 IDCT results are used in a reconstruction loop. The specifications ensure the compatibility between different implementations of the IDCT.
標(biāo)簽： IEEE Implementations Specifications Discrete
上傳時(shí)間： 2016-01-31
上傳用戶：guanliya
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