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- fft快速傅里叶变换，通过液晶显示输出结果 频谱输出各频段的幅值。-fft Fast Fourier Transform, the output spectrum through the LCD display output amplitude of each frequency band.
Matlab-spectrumananalysis
- 该文给出了一种利用matlab系统实现频谱分析与显示的方法。该方法对语音信号进行基于FFT的短时频谱分析，频谱图的伪彩色映射及显示。-This paper presents a system implementation using matlab spectrum analysis and display methods. The method is based on the speech signal short-time FFT spectrum analysis, spectrum and
20101008084341
- 用谐波信号（至少两个以上频率）产生一组时间数字序列，用FFT分析信号的频谱，确定采样频率、采样的数据长度，根据FFT的计算结果分析信号的幅值和相位。 讨论采样频率、数据长度对结果的影响。 -With harmonic signals (at least two or more frequency) produces a set of time sequence of numbers, with the FFT frequency spectrum analysis to determin
FFtandIfftTest
- Matlab编程实现FFT变换及频谱分析的程序代码（适合初学者加强理解）。（1)用Matlab产生正弦波,矩形波,以及白噪声信号，并显示各自时域波形图；(2)进行FFT变换，显示各自频谱图，其中采样率，频率、数据长度自选；(3)做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱；(4)用IFFT傅立叶反变换恢复信号，并显示恢复的正弦信号时域波形图。-Matlab codes for FFT Understanding which contains sine wave,rectangula
2-yuputu
- 程序给出了0~10发音的语谱图，其中采用分帧函数对信号进行分帧处理然后在用fft算法得到频谱信息，后用灰度图像表示-Program gives the pronunciation of words from 0 to 10 spectra, which employs the signal sub-frame function and then in the sub-frame processing spectral information obtained with the fft algor
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- 用C或者matlab编写基2 FFT快速算法，输入点数是2的幂次方，序列视作既包含实部也包含虚部。要求一个函数计可以做正变换，也可以做反变换。编写输入序列，先进行正反向变换，得到离散频谱，再将离散频谱加载到输入端进行验证，从输出端获取序列，和原来的序列进行比较，看看是否相等。序列可随意设为2的幂次项！-Written by C or matlab base 2 FFT fast algorithm, the input power of 2 points is the sequence incl
cbl
- 利用fft()进行快速傅立叶变换，得到频谱，画出正弦函数及其频谱 找出频谱中使得Y轴取最大值时的估计频率记为ft 加入白噪声，绘出信噪比和均方误差的关系曲线 - using fft () for fast Fourier transformation, spectrum, to draw the sine function and its spectrum find the spectrum
DSP_MATLAB
- 两个正弦信号叠加白噪声 用fft进行频谱分析-failed to translate
fftview
- 做信号处理的时候经常会用到FFT，而MATLAB自带的FFT只能变换出一列系数，想做成频谱图还要自己加一部分，自己写了一个小程序，输入原始信号和采样率，可以画出标准的幅值谱和功率谱。-Do signal processing is often used when the FFT, and FFT MATLAB own transformation from a coefficient of only wanted to make Canada part of the spectrum but a
digital-process
- 应用FFT对信号进行频谱分析 IIR数字滤波器的直接设计 窗函数法设计FIR滤波器 用双线变换法设计IIR滤波器-Application of FFT spectral analysis of signals directly to design IIR digital filter design FIR filter window function with a double transform IIR filter design
pinpufenxi
- 在matlab下实现信号频谱分析：利用快速付里叶变换FFT得到下列信号的频谱，并绘制信号及频图形：1.长2s的方波信号，频率f=10Hz -In matlab signal spectrum analysis: the fast in leaf transform FFT get pay of spectrum, the signal and drew the signal and frequency graphics: 1. The long 2s, frequency f = squar
fftfenxi
- 本文通过matlab分析信号在不同采样频率和变换点数的FFT下的频谱图，研究采样频率和变换点数对信号FFT的影响。同时还讨论了信号在不同频带噪声背景下的采样频率和变换点数的选择。-In this paper, matlab sampling frequency of the signal at different points in the FFT and transform under the frequency spectrum, change the sampling frequency
FFT_report_VHDL
- 讲解VHDL的一些基本概念、用法。其中还包含了频谱分析的一些介绍，重点在于FFT算法介绍。-VHDL to explain some basic concepts, usage. Spectral analysis which also includes some descr iption, with emphasis on FFT algorithm introduced.
exp2
- 用FFT对信号进行频谱分析，是在MATLAB环境下通过编程实现。-The signal with the FFT spectrum analysis is adopted in the MATLAB programming environment.
spectrum-analysis-program-
- 这是自己编写的频谱分析程序，不需要调用FFT，直接调用本程序即可，毕业设计的一部分，绝对运行没问题且效果好-This is the spectrum analysis program to write your own, do not call the FFT, you can directly call the program, part of the design school is absolutely no problem and the effective operation
FFT123456
- FFT实践及频谱分析,帮助理解FFT及谐波处理的一些问题-Practice and FFT spectrum analysis, FFT and harmonic treatment to help understand some of the issues
fftfenxi
- 短时傅里叶变换 快速傅里叶变换对音频信号处理 频谱分析-fast fft
ZOOM_FFT
- 实现ZOOM-FFT的功能，对频谱进行了10倍的细化。-realize ZOOM-FFT fanction
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- 基于matlab。利用FFT计算信号的频谱并与信号的真实频谱的抽样比较。 脚本文件T2F.m定义了函数T2F，计算信号的傅立叶变换。-Based on matlab. Calculated using FFT frequency spectrum and the true spectrum of the signal sample comparison. scr ipt file defines a function T2F.m T2F, calculate the Fourier tran
FFT_TEST
- 模拟数字信号进行matlab的FFT运算。对频谱进行对数谱和功率谱的转换。-Analog and digital signal matlab the FFT operation. The number of the spectrum of the spectrum and power spectrum of the conversion.