傅里叶变换及其应用自学

图像配准 代码 matlab 需要的可以参考

随机傅立叶特征 该存储库提供Python模块rfflearn ，该模块是用于内核方法的随机傅立叶特征[1，2]的库，如支持向量机和高斯过程模型。 该模块的功能包括： 模块的接口非常接近 ， 支持向量分类器和高斯进程回归器/分类器，提供CPU / GPU训练和推理， 与接口，可更轻松地进行超参数调整， 该存储库提供了，该显示RFF对于实际的机器学习任务很有用。 现在，此模块支持以下方法： 方法 CPU支援 GPU支持 典型相关分析 rfflearn.cpu.RFFCCA -- 高斯过程回归 rfflearn.cpu.RFFGPR rfflearn.gpu.RFFGPR 高斯过程分类 rfflearn.cpu.RFFGPC rfflearn.gpu.RFFGPC 主成分分析 rfflearn.cpu.RFFPCA rfflearn.gpu.RFFPCA 回归 rff

这是一篇介绍快速傅里叶变换的英文论文。其中文翻译在我的博客中有。

权威，实用。不少人对于傅里叶变换只是停留在理论的角度，而没有领略到它在工程使用过程中更加强大的魅力，作为一种信号处理的数学工具，可以用代码展现它强大的地方。

应用Fourier变换法分离提取地震记录中不同模态的瑞雷面波，其原理是：利用瑞雷面波各模式传播速度的差异，将时间域中叠加在一起的瑞雷面波信号在频率波数域中分开，以此实现分离提取各阶模态瑞雷面波。研究结果表明：τ-p变换只能提取浅部能量较强的部分瑞雷面波，不能提取瑞雷面波的全部频散成分且不能使不同模态瑞雷面波分离；利用Fourier变换可以准确分离提取不同模态的瑞雷面波，且经分离后计算所得频散曲线的频带宽度扩展，有利于提高瑞雷面波勘探的能力。

FOURIER NEURAL OPERATOR FOR parametric pde

Title: Fast Fourier Transform - Algorithms and Applications Author(s): K.R. Rao, D.N. Kim, J.-J. Hwang (auth.) Series: Signals and Communication Technology Publisher: Springer Netherlands Year: 2010 Edition: 1 Language: English Pages (biblio\tech): 426\437 ISBN: 1402066287, 9781402066283 Fast Fourier Transform - Algorithms and Applications presents an introduction to the principles of the fast Fourier transform (FFT). It covers FFTs, frequency domain filtering, and applications to video and audio signal processing. As fields like communications, speech and image processing, and related areas are rapidly developing, the FFT as one of the essential parts in digital signal processing has been widely used. Thus there is a pressing need from instructors and students for a book dealing with the latest FFT topics. Fast Fourier Transform - Algorithms and Applications provides a thorough and detailed explanation of important or up-to-date FFTs. It also has adopted modern approaches like MATLAB examples and projects for better understanding of diverse FFTs. Fast Fourier Transform - Algorithms and Applications is designed for senior undergraduate and graduate students, faculty, engineers, and scientists in the field, and self-learners to understand FFTs and directly apply them to their fields, efficiently. It is designed to be both a text and a reference. Thus examples, projects and problems all tied with MATLAB, are provided for grasping the concepts concretely. It also includes references to books and review papers and lists of applications, hardware/software, and useful websites. By including many figures, tables, bock diagrams and graphs, this book helps the reader understand the concepts of fast algorithms readily and intuitively. It provides new MATLAB functions and MATLAB source codes. The material in Fast Fourier Transform - Algorithms and Applications is presented without assuming any prior knowledge of FFT. This book is for any professional who wants to have a basic understanding of the latest developments in and applications of FFT. It provides a good reference for any engineer planning to work in this field, either in basic implementation or in research and development. Table of contents : Front Matter....Pages i-xviii Introduction....Pages 1-3 Discrete Fourier Transform....Pages 5-40 Fast Algorithms....Pages 41-110 Integer Fast Fourier Transform....Pages 111-126 Two-Dimensional Discrete Fourier Transform....Pages 127-184 Vector-Radix 2D-FFT Algorithms....Pages 185-193 Nonuniform DFT....Pages 195-234 Applications....Pages 235-316 Back Matter....Pages 317-423

基于广义Radon-Fourier变换的雷达机动目标运动估计

M系列 RS485采集模块与力控 ForceContrl V7.0软件通讯 M系列 RS485采集模块是基于 RS485网络的数字量和模拟量采集模块，支持工业标准的 Modbus RTU 协议，包括：M-IB16 （16路数字量输入模块）、M-OB16（16路数字量输出模块）、M-IF16C（16路模拟 量输入模块）、M-OF8C（8路模拟量输出），可以与组态王、力控以及支持 Modbus RTU协议的 PLC等系统 或软件联合使用，下面以 M系列 RS485采集模块与力控 ForceControl V7.0软件进行通讯为例。 1、启动力控 ForceControl V7.0软件，打开工程管理器，新建工程，输入项目名称、路径、描述等。 2、在 ForceControl开发系统中，进行 IO设备组态，配置 M-IB16采集模块，设备地址为 1。 第一步：输入设备名称、设备描述、更新周期、超时时间、设备地址和通讯方式。