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Description: 自己编写的，1024点快速傅里叶变换、倒频谱分析、功率谱分析及其Applet曲线显示程序源代码。 说明清楚，附有验证使用的数据文件-themselves prepared in 1024 point fast Fourier transform, cepstrum analysis, power spectrum analysis and Applet curve shows the source code. Make it clear with the use of the test data files
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Size: 6144 |
Author: 冯瑶 |
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Description: 用FFT分析周期矩形脉冲及其频谱, 这是计算周期矩形脉冲双边频谱的程序。-using FFT analysis cycle and rectangular pulse spectrum, which is calculated cycle rectangular pulse spectrum of bilateral procedures.
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Size: 1024 |
Author: 陈伟 |
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Description: DELPHI写的FFT程序，有曲线的演示，方便大家参考。-DELPHI FFT written procedures, the demonstration curve, convenient reference.
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Size: 92160 |
Author: 田顺平 |
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Description: 用快速傅立叶变换FFT实现信号的谱分析，包括FFT程序，谱分析程序和绘图程序-using Fast Fourier Transform FFT spectrum analysis of the signals, including FFT procedures, spectral analysis procedures and drawing program
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Size: 7168 |
Author: 孙涛 |
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Description: The Fast Fourier Transform (FFT) allows users to view the spectrum content of an audio signal. The FFT code presented here was written by Don Cross though his homepage appears to have subsequently been taken down. Rather than explain the mathematical theory of the FFT, I will attempt to explain its usefulness as it relates to audio signals-The Fast Fourier Transform (FFT) allows us ers spectrum to view the content of an audio sign al. The FFT code presented here was written by Do n Cross though his homepage appears to have subs equently been taken down. Rather than explain t he mathematical theory of the FFT. I will attempt to explain its usefulness as it re Lates to audio signals
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Size: 22528 |
Author: 冰城 |
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Description: 采用按时间抽选的基4原位算法和坐标旋转数字式计算机（CORDIC）算法实现了一个FFT实时谱分析系统。-time selected by using the four-situ algorithm and coordinate rotation digital computer (CORDIC) algorithm is one is a real-time FFT spectrum analysis system.
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Size: 2048 |
Author: 张志华 |
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Description: 基于fft的频谱分析程序。硬件由dsp实现，数据通过串口送至计算机进行频谱分析显示。
附两篇文档！-based on the spectral analysis procedures. Hardware Implementation by dsp, data sent to the computer through the serial spectrum analysis shows. A two documents!
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Size: 475136 |
Author: cdl |
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Description: the convert the audio from the cep unit fft to mel spectrum-the convert the audio from the probes unit fft t o mel spectrum
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Size: 2048 |
Author: 雷柏英 |
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Description: 用单片机做的音频功率谱分析，包含FFT程序。单片机用STC的51单片机。-Done using single-chip audio power spectrum analysis, including FFT procedures. Single-chip single-chip microcomputer 51 with STC.
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Size: 4096 |
Author: feee |
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Description: 这是在matlab/simulink环境下,对一个连续信号采样及离散化.并进行FFT频谱分析的实例-This is in the matlab/simulink environment, for a continuous signal sampling and discretization. And FFT spectrum analysis examples
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Size: 6144 |
Author: marscr |
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Description: FFT算法进行ＦＦＴ 、ＩＦＦＴ、功率谱计算，包括Hamming 窗、Hanning 窗、triangle 窗、Blackman 窗、4 term Blackman-Harris 窗几种窗函数的功率谱计算功能。-FFT algorithms FFT, IFFT, power spectrum calculation, including the Hamming window, Hanning window, triangle window, Blackman window, 4 term Blackman-Harris window of several of the power spectrum window function computing power.
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Size: 372736 |
Author: huang |
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Description: 用FFT做谱分析的实验代码，附有详细的实验说明和源代码以及对实验现象的分析-FFT spectrum analysis done using the experimental code, with detailed experimental descriptions and source code as well as the analysis of experimental phenomena
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Size: 51200 |
Author: 甘小华 |
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Description: fft1．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-fft1. Using Matlab generated sine wave, rectangular wave, as well as the white noise signal, and display their respective time-domain waveform of Figure 2. FFT to transform, showing their frequency spectrum, including sampling rate, frequency, data length of 3-on-demand. Make the rms signal of the three maps, power maps, as well as the number of root-mean-square map 4. Fourier Transform IFFT with the restoration of signals, and displays the sinusoidal signal the resumption of time-domain waveform
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Size: 1024 |
Author: 李三 |
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Description: 这是本人做的一个，基于VB的一个音频文件FFT计算与频谱显示的软件。包括源代码，是个不错的源代码。-This is one I do, based on the VB of an audio file FFT calculation and spectrum display software. Including source code, is a good source code.
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Size: 6990848 |
Author: 余海斌 |
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Description: implement 1D and 2D FFT and Inverse 2D FFT ,obtain the power spectrum from a set of FFT coefficients and achieve the Butterworth Lowpass Filter
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Size: 2048 |
Author: lu jie |
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Description: 对wav音频进行分析，并进行fft转换，最后生成可视的频谱图-Wav audio for analysis and fft conversion, the final generation of visual spectrum
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Size: 2471936 |
Author: chobits |
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Description: 2007年全国大学生电子设计大赛，A题音频信号分析仪的全部源程序。
单片机为c8051f120，系统时钟倍频至96MHZ。
main.c是一个包含五级菜单的主函数。
FFT.C是进行fft变换，将时域信号变换成频域信号。
flash.c是读写片外flash存储器的程序,可以将分析结果保存,以备调用.
z7290.c是周立功7290键盘芯片的驱动程序.
FFT_xgjis.c是对变换后的频谱进行分析和运算.
FFT_CodeTable.c是一个正弦表,在FFT的时候调用.
LCD320240.c是320*240的液晶驱动程序,液晶的控制器是SED1335.
所有的.h文件提供了子函数的定义.
本程序用KEIL3 802版本编译通过，将所有的.C文件添加到工程中，并编译main.c
注意两点:1.器件选择c8051f120.
2.在target中将时钟设为96M.同时必须将Memory Model 改成large--XDATA.默认的是small.
因为本设计占用的资源是非常大的.
Program Size: data=81.3 xdata=6811 code=43056-2007 National Undergraduate Electronic Design Contest, A title of the audio signal analyzer full source code. Singlechip c8051f120, system clock multiplier to 96MHZ. main.c is a menu that contains the main function 5. FFT.C is fft transform, time-domain signal will be converted into frequency domain signals. flash.c are reading and writing flash memory chip procedure, the results of the analysis can be preserved, for calling. z7290.c weeks are Ligong 7290 driver keyboard chip. FFT_xgjis.c is transformed spectrum analysis and computing. Sine FFT_CodeTable.c is a table at a time when FFT calls. LCD320240.c are 320* 240 LCD drivers, LCD controllers are SED1335. all. h document provides the definition of Functions.
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Size: 35840 |
Author: 王渔阳 |
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Description: 波形fft实现-dfgdsdfsdfsdfsdfggggggggggggggggg
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Size: 1298432 |
Author: 岸 |
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Description: ATMEGA8单片机计算fft 显示频谱 -ATMEGA8 SCM calculations show that the spectrum fft
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Size: 20480 |
Author: 李阳 |
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Description: 基于MFC的FFT频谱分析。界面化，数据可导入、-FFT spectrum analysis。
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Size: 5507072 |
Author: wang |
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