FFT

快速傅立叶变换

常用释义

abbr. 快速傅氏变换算法（Fast Fourier Transform Algorithm）

扩展信息

快速傅里叶变换(Fast Fourier Transform)

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例句

Moreover, the hardware requirement is simpler and it is possible to run with a dual-channel FFT analyser only.

硬件配置也较简单，甚至可以只用双通道 FFT 分析仪来实现。

According to the articles published, the harmonic analysis of electronic power system is usually achieved via Fast Fourier Transform(FFT).

从国内外发表的文献来看，电力系统的谐波分析，通常都是采用快速傅立叶变换（FFT）实现的。

A diagnosis and signal analysis method with FFT signal processer is provided for on surge-detonation of a twin-spool turbojet engine.

本文着重介绍某双轴发动机喘振 —爆燃故障用 FFT 信号处理机进行诊断和信号分析的方法。

Finite-frequency tomography(FFT) is a new method to invert deep structure of the earth in the age of broadband seismic observation.

有限频率层析成像是在宽频带地震观测时代提出的反演地球深部结构的新方法。

At the same ti me, a corresponding fast computing algorithm is deduced by using FFT and CZT algorithm.

同时，利用 FFT 及 CZT 算法，进一步推导出尺度变换矩阵的一种快速实现算法。

In this paper, it briefly discusses the FFT and its application in the case of phone-video.

简单介绍了 FFT 变换及其在电话视频中的作用。

A new thought of combining frequency estimate method based on FFT with that based on multiple signal classification (MUSIC) is presented.

提出了将基于 FFT 的频率估计法和基于多重信号分类（MUSIC）的频率估计法相结合的新思路。

This FFT method is compared with other traditional fitting methods by computer emulation for an erbium-doped fiber sensing system.

以掺铒光纤为例，通过数字仿真将本方法与其它几种传统的拟合方法进行了比较。

The optimal filter coefficients are calculated in the frequency domain by FFT and are derived from an eigenvector of a matrix.

最佳均衡器的系数通过快速傅立叶变换在频域进行计算，并可通过求取矩阵的特征向量来获得。

This paper presents the application of the MSP430-based FFT algorithm with variable sampling points to a vortex flowmeter system.

介绍了一种基于 MSP430 单片机和变采样点数的 FFT 算法在涡街流量计中的应用。

Light propagation is described by paraxial wave equations and solved by a phase-screen method combined with the FFT technique.

光在流场中的传输采用傍轴近似光波传输方程描述，用相屏法和快速傅里叶变换（FFT）技术求解。

Step One: Select a WAV file as the target of analysis. (Ding. wav) Step Three: Transform and painting to FFT frequency domain graphics.

步骤一：选择一个 WAV 文件作为分析的对象。（ding.wav）步骤三：进行 FFT 变换并画频域图形。

the exact upper bound and lower bound of mean square error are obtained for the two FFT algorithms of fixed point and block floating point.

得到了准确的定点和块浮点两种 FFT 算法的均方误差上下限。

Considering real-timing of algorithm, FFT is used for estimation of signal spectrum, and the specific steps are expressed.

考虑到算法的实时性，信号谱估计的算法完全基于 FFT 快速变换，并且给出了算法的具体实现步骤。

The traditional method of spectrum analysis on the current signal via FFT is hard to diagnose the fault of the broken rotor bars.

传统的通过 FFT 变换对电机定子电流信号直接进行频谱分析，难以有效识别出转子断条故障。

Sampling data using fast Fourier transform (FFT) to numerical algorithm has obtained the high accuracy air shaft synthesis parameter survey.

对采样后的数据运用快速傅立叶变换（FFT）进行数值计算，获得了高精度的风井综合参数的测量。

Algorithms are presented for maximally efficient computation of the crystallographic fast Fourier transform (FFT).

算法提出了最大限度地有效计算晶体快速傅里叶变换（FFT）。

At last the FP operation modules are used to design FP FFT processor, achieve high precision of FFT processing on FPGA.

最后应用浮点运算模块设计浮点 FFT 处理器，在 FPGA 中实现高精度的 FFT 处理。

The software makes FFT for the acquired data. The running status of the unit is shown at real time with graphs and data.

软件对采集来的信号进行傅立叶变换，最终以图形、数据的形式实时显示机组运行状态。

Algorithms for evaluation of the crystallographic FFT for centred lattices are presented.

算法的评价晶体的 FFT 为中心的晶格介绍。

Present a improved block floating point algorithm which solves the overflow in long point FFT effectively and improves precision.

采用了一种改进的块浮点算法，有效避免了溢出问题并且提高了精度。

A multi-dimensional vector radix Fast Fourier Transform (FFT) algorithm with Decimation In Frequency (DIF) was proposed.

给出了频域抽取（DIF）多维向量基快速傅里叶变换（FFT）算法。

In this paper, application of FIR filter and FFT processing technology in radar digital signal processing system is introduced.

介绍了数字信号处理 FIR 滤波器和 FFT 处理技术在地面侦察雷达中的应用。

Through running FFT on FPGA, it is proved that the technology can effectively reduce the memory accessing's delay, economize memory width.

在 FPGA 设计环境中模拟运行了 FFT 核心循环，实验表明该技术可以有效降低带宽需求，减少网络冲突。

using window law and adjusting method to reduce the error of FFT, the results have been markedly improved.

采用加窗法和幅值比值校正法对 FFT 进行减小误差处理，经过处理效果明显提高。

Fabio Capello told FFT that he 'd told you to "stay in front of the goal" .

法比奥•卡佩罗在接受 FFT 采访时说道，他曾让你“一直站在球门前面”。

The continuous-wave echo data should be separated time equally and output by fast Fourier transformation(FFT) before the operation.

在算法进行之前，必须对连续波回波数据进行等时段截取，并通过 FFT 变换输出。

更新时间：2025-06-09 00:40