Fast fourier transform

Ebook "Synthetic polymeric membranes: Characterization by atomic force microscopy" concentrates on atomic force microscopy (AFM), a method recently developed to study the surfaces of synthetic polymeric membranes. AFM is becoming a very important tool for the characterization of synthetic polymeric membranes.The development of membranes of improved performance depends on the exact knowledge of the morphology of a thin selective layer that exists at the surface of the membrane.

208p manmanthanhla0201 27-02-2024 2 1   Download

Ebook "Measurement and control of charged particle beams" we have tried to coherently organize this material so as to be useful to designers and operators in the commissioning and operation of particle accelerators. A point of emphasis has been to provide, wherever possible, experimental data to illustrate the particular concept under discussion. Of the data pre­ sented, most are collected from presently existing or past accelerators and we regret the problem of providing original data some of which appear in less accessible publications - for possible omissions we apologize.

376p manmanthanhla0201 27-02-2024 5 1   Download

Nghiên cứu này tập trung vào một số kỹ thuật được sử dụng phổ biến nhất bao gồm Mel Frequency Cepstral Coefficients (MFCC), Linear Prediction Coefficients (LPC), Linear Prediction Cepstral Coefficients (LPCC). Các dữ liệu đặc trưng này được sử dụng để xây dựng và huấn luyện mô hình học máy nhận dạng sự có mặt của các từ khóa trong giọng nói thu âm được.

3p vigeorge 06-12-2023 4 2   Download

In this paper, we propose a method that uses the non-uniform Fast Fourier Transform (FFT) to compensate for Doppler frequency shifts in orthogonal frequency division multiplexing (OFDM) based underwater acoustic (UWA) communication systems. To estimate the Doppler frequency shift, the paper proposes using a pilot carrier frequency (PCF) that is identified by transmitting with greater power in the frequency domain compared to other subcarriers.

7p vijeff 30-11-2023 3 3   Download

Ebook Algorithms in C: Part 2 includes contents: Chapter 24: elementary geometric methods, chapter 25: finding the convex hull, chapter 26: range searching, chapter 27: geometric intersection, chapter 28: closest-point problems, chapter 29: elementary graph algorithms, chapter 30: connectivity, chapter 31: weighted graphs, chapter 32: directed graphs, chapter 33: network flow, chapter 34: matching, chapter 35: random numbers, chapter 36: arithmetic, chapter 37: gaussian elimination, chapter 38: curve fitting, chapter 39: integration, chapter 40: parallel algorithms chapter 41: fast fourier ...

313p haojiubujain08 01-11-2023 3 1   Download

Ebook "Fast transforms algorithms, analyses, applications" includes content: Introduction, fourier series and the fourier transform, discrete fourier transforms, fast fourier transform algorithms, FFT algorithms that reduce multiplications, DFT filter shapes and shaping, spectral analysis using the FFT,... and other contents.

511p haojiubujain07 20-09-2023 3 2   Download

Ebook "Numerical recipes in C - The art of scientific computing" includes content: Preliminaries, solution of linear algebraic equations, interpolation and extrapolation, integration of functions, evaluation of functions, special functions, random numbers, sorting, root finding and nonlinear sets of equations, minimization or maximization of functions, eigensystems, fast fourier transform,... and other contents.

1018p haojiubujain07 20-09-2023 4 3   Download

Ebook "Schaum's outline of digital signal processing" includes content: Signals and systems, fourier analysis, sampling, the Z- transform, transform analysis of systems, the fast fourier transform, implementation of discrete time systems, filter design.

447p haojiubujain07 20-09-2023 3 3   Download

Lecture Digital image processing - Chapter 4: Image enhancement in the frequency domain provide students with content about: introduction to the fourier transform; application of fourier transform in DIP; image enhancement in the frequency domain; fast fourier transform (FFT algorithm);... Please refer to the detailed lecture content!

125p diepkhinhchau 18-09-2023 5 4   Download

This spectrum will be compared with standard one built by the manufacturer. In this paper, the standard spectrum of well-known elevator manufacturers such as Kone, Schindler etc. will be introduce for reference of Vietnamese elevator manufacturers.

6p vidoctorstrange 06-05-2023 2 2   Download

Infrared spectral analysis of milk is cheap, fast, and accurate. Infrared light interacts with chemical bonds present inside the milk, which means that Fourier transform infrared milk spectra are a reflection of the chemical composition of milk. Heritability of Fourier transform infrared milk spectra has been analysed previously.

14p vihagrid 30-01-2023 5 3   Download

In this article, we introduce a new calculation method to determine the vertical derivative of gravity anomaly giving higher stable and accurate than traditional methods. The method is verified on synthetic model data and actual data of the Southwest sub-basin of the East Vietnam Sea.

10p vipagani 24-10-2022 7 2   Download

Bài viết Thiết kế và thi công bộ tính toán FFT 16 điểm dựa trên công nghệ FPGA trình bày thiết kế và thi công một bộ tính toán FFT (Fast Fourier transform) 16 điểm dựa trên công nghệ FPGA với kiểu dữ liệu là số phức trong đó phần thực và phần ảo được biểu diễn dưới dạng số thực dấu chấm tĩnh.

9p vibentley 08-09-2022 24 4   Download

(BQ) Ebook Numerical recipes in Fortran 77: The art of scientific computing (Volume 1 of Fortran Numerical recipes) – Part 2 presents the following content: Fast fourier transform, fourier and spectral applications, statistical description of data, modeling of data, integration of ordinary differential equations, two point boundary value problems, integral equations and inverse theory, partial differential equations, less-numerical algorithms.

484p runordie6 10-08-2022 12 4   Download

Continued part 1, part 2 of book "Introduction to Parallel Computing (Second edition)" provide with knowledge about: programming shared address space platforms; dense matrix algorithms; sorting and bibliographic remarks; graph algorithms; search algorithms for discrete optimization problems; dynamic programming; fast fourier transform;...

321p britaikridanik 05-07-2022 15 2   Download

Advanced Algorithms Analysis and Design - Lecture 43: Polynomials and fast fourier transform. In this lecture we will cover the following: the coefficient representation; point value presentation; discrete fourier transform; complex root of unity; FFT recursive algorithm;...

34p andromedashun 26-05-2022 12 3   Download

Bài viết bàn về thuật toán biến đổi FFT (Fast Fourier Transform) được áp dụng một cách rộng rãi trong nhiều ứng dụng khác nhau bao gồm phân tích phổ tín hiệu trong các hệ thống OFDM (Orthogonal Frequency Division Multi-plexing), trích đặc trưng âm thanh MFCC (Mel Frequency Cepstral Coefficients) trong hệ thống nhận dạng giọng nói hay trong các hệ thống xử lý số tín hiệu cần phân tích trên miền tần số nói chung. Mời các bạn cùng tham khảo!

5p wangziyi_1307 26-04-2022 35 4   Download

Principles, algorithms and applications: Digital signal processing (Fourth Edition) - Part 2 has present the content efficient computation of the DFT: fast fourier transform algorithms; implementation of discrete-time systems; design of digital filters; multirate digital signal processing; linear prediction and optimum linear filters; adaptive filters; frequency analysis of signals using the DFT;...

476p chenlinong_0310 23-02-2022 28 2   Download

Energy of surface waves is almost dissipated as propagating from shallow water to muddy flat and in mangrove forest. The study aims to analyze energy spectral density by using Blackman-Tukey (BT) and Fast Fourier Transform (FFT) methods in order to analyze the wave energy in mangrove areas in Cu Lao Dung (Soc Trang province).

10p vielonmusk 21-01-2022 8 0   Download

Lecture ELEC2400 signals and systems: Chapter 9 - Discrete-time fourier analysis. After completing this section, you will understand the knowledge about discrete-time fourier transform; Discrete fourier transform and fast fourier transform.

17p lazzaro 03-12-2021 14 2   Download