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Description: sndpeek is just what it sounds (and looks) like:
real-time 3D animated display/playback
can use mic-input or wav/aiff/snd/raw/mat file (with playback)
time-domain waveform
FFT magnitude spectrum
3D waterfall plot
lissajous! (interchannel correlation)
rotatable and scalable display
freeze frame! (for didactic purposes)
real-time spectral feature extraction (centroid, rms, flux, rolloff)
available on MacOS X, Linux, and Windows under GPL
part of the sndtools distribution.
Platform: |
Size: 282451 |
Author: 尉迟雪凝 |
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Description: 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
-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
Platform: |
Size: 1024 |
Author: river |
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Description: sndpeek is just what it sounds (and looks) like:
real-time 3D animated display/playback
can use mic-input or wav/aiff/snd/raw/mat file (with playback)
time-domain waveform
FFT magnitude spectrum
3D waterfall plot
lissajous! (interchannel correlation)
rotatable and scalable display
freeze frame! (for didactic purposes)
real-time spectral feature extraction (centroid, rms, flux, rolloff)
available on MacOS X, Linux, and Windows under GPL
part of the sndtools distribution. -sndpeek is just what it sounds (and looks) like: real-time 3D animated display/playback can use mic-input or wav/aiff/snd/raw/mat file (with playback) time-domain waveform FFT magnitude spectrum 3D waterfall plot lissajous! (interchannel correlation) rotatable and scalable display freeze frame! (for didactic purposes) real-time spectral feature extraction (centroid, rms, flux, rolloff) available on MacOS X, Linux, and Windows under GPL part of the sndtools distribution.
Platform: |
Size: 282624 |
Author: 尉迟雪凝 |
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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
Platform: |
Size: 1024 |
Author: 李三 |
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Description: 已知电压信号序列，利用FFT计算该电压信号的各次谐波及其RMS值。-As the voltage signal sequence is known, FFT is used to calculate the value of harmonics and the voltage RMS value.
Platform: |
Size: 2048 |
Author: Harry |
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Description: 用双谱和小波变换去除信号中加性高斯噪声的相关程序
1.实现单个变量的双谱分析程序
2.用傅立叶反变换求自相关函数的程序
3.用fft求取喜好频谱、功率谱、均方根谱、对数谱的程序
4.读取.wav语音信号后用小波去加信白噪声的程序
5.用各种小波和阀值对同一信号去加性噪声效果比较的程序
-Double-spectral and wavelet transform to remove the signal plus Gaussian noise procedures 1. To achieve a single variable pairs of spectral analysis procedures 2. Using Fourier inverse transform procedures for seeking self-correlation function 3. To strike a preference to use fft spectrum , power spectrum, RMS spectrum, several spectra of the procedure 4. read. wav audio signal with wavelet plus a letter to the white noise process 5. with a variety of wavelet and threshold on the same signal to additive noise Comparison program
Platform: |
Size: 5120 |
Author: 沈玉杰 |
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Description: 任意点数的FFT变换C语言程序，便于移植，并以C8051f020为平台提供了电赛题目数字式工频有效值多用表的源程序，以示范本FFT的使用-Points FFT transform any C language program, easy to transplant, and to provide a power platform C8051f020 title race RMS digital multimeter frequency source, in order to demonstrate the use of the FFT
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Size: 1212416 |
Author: 刘浩 |
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Description: FFT在matlab中的实践分析，例子为求一个正弦波的频谱图、均方根谱、功率谱、对数谱和进行IFFT的变换。简单易懂，供大家参考-FFT analysis of the practice in matlab, examples for the sake of a sine wave of frequency spectrum, the rms spectrum, power spectrum, and the IFFT on the number of spectral transformation
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Size: 3072 |
Author: andy |
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Description: 求取正弦信号的幅频谱图、均方根谱、功率谱、对数谱等-To strike the amplitude of the sinusoidal signal frequency spectrum, the rms spectrum, power spectrum, the number of spectral
Platform: |
Size: 1024 |
Author: 窦豆 |
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Description: 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- 1. Using Matlab generated sine wave, square wave, and the white noise signal, and displays the respective time-domain waveform 2. The FFT transform, showing each spectrum, where the sampling rate, frequency, data length choice 3. Rms signal to make the three maps, power spectra, as well as the number of rms spectra 4. With the inverse Fourier transform IFFT restore the signal and displays the recovered time-domain waveform sinusoidal signal
Platform: |
Size: 1024 |
Author: 李杰 |
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Description: 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-1. Produce sine wave, square wave, and the white noise signal with Matlab, and their time-domain waveform display
2. FFT transform, display each spectrum, where the sampling rate, frequency, length optional data
3. RMS to make maps of the three signals, power spectrum, as well as the number of RMS map
4. Restored by inverse Fourier transform IFFT signal and displays the time domain waveforms sinusoidal signal recovery
Platform: |
Size: 1024 |
Author: 刘真 |
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Description: 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- 1. Using Matlab to generate sine wave, square wave, and the white noise signal and displays each time-domain waveform 2. FFT transform, display each spectrum, where the sampling rate, frequency, data length optional 3. RMS to make maps of the three signals, power spectrum, as well as the number of rms Atlas 4. Restored by inverse Fourier transform IFFT signal and displays the time domain waveforms sinusoidal signal recovery
Platform: |
Size: 1024 |
Author: 临风独立 |
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Description: 1、用Matlab产生正弦波，矩形波，并显示各自的时域波形图；
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，要求注明；
3、绘制三种信号的均方根图谱；
4、用IFFT回复信号，并显示恢复的正弦信号时域波形图。
-1, using Matlab to generate sine wave, square wave, and shows the respective time-domain waveform
2, FFT transform, display each spectrum, where the sampling rate, frequency, length of data demand, requirements specified
3, three maps drawn rms signal
4, the reply signal by IFFT, the sinusoidal signal and displays the recovered time-domain waveform.
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Size: 79872 |
Author: 谢明 |
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Description: 基于AVR单片机的电力谐波分析系统本设计采用ATMEL公司的ATmega32L单片机完成一个电能质量检测系统。电压信号经过变压器隔离降压，幅值较低的交流信号再通过运算放大器构成的加法器变成可供A/D转换电路转换的直流信号。单片机使用内部的定时器每1/3200秒对电压信号采样一次，用片内自带的10位精度A/D转换器对每周波的电压信号采样64个点后，进行FFT运算，FFT的运算过程采取查表法进一步提高运算速度，分析出小于21次的各次谐波的含量，并计算出电压信号的有效值(RMS)，将谐波分析结果通过RS-232串行接口上传到上位机并显示存储。-
This design uses ATMEL Corporation ATmega32L MCU to complete a power quality detection system. Voltage signal through a transformer-isolated buck, lower amplitude AC signal through another operational amplifier adders into a DC signal of A/D conversion circuit for conversion. After the MCU internal timer every 1/3200 second voltage signal is sampled once with chip comes with 10-bit precision A/D converter for sampling a voltage signal per cycle of 64 points, the FFT computation, FFT calculation uploaded to the host process to take up table method further improve processing speed, analyze the content of less than 21 times each harmonic, and calculate the RMS voltage signal (RMS), harmonic analysis results via RS-232 serial interface storage and display machine.
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Size: 412672 |
Author: yhs402 |
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Description: 进行FFT变换并做频谱图,求均方根谱,求功率谱,求对数谱,用IFFT恢复原始信号-FFT transform and make spectrum, seeking RMS spectrum, power spectrum demand, the logarithms of the spectrum, to restore the original signal with IFFT
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Size: 1024 |
Author: pft |
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Description: 该C#源代码软件工程是基于STM32数字示波器/信号发生器/信号分析仪的PC端控制软件，具有显示波形数据（峰峰值、最大值、有效值等），显示波形曲线（回显波形、保存波形等），常用信号（三角波、矩形波等）发生、信号分析（FFT分析、频谱分析等）功能(The C # source code software engineering is based on the STM32 digital oscilloscope / signal generator / signal analyzer PC-side control software, with the display waveform data (peak, maximum, RMS, etc.), display waveform curve (echo waveform, save Waveforms, etc.), commonly used signals (triangular waves, rectangular waves, etc.), signal analysis (FFT analysis, spectrum analysis, etc.))
Platform: |
Size: 6920192 |
Author: cjs_sky
|
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Description: 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
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
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
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(fft analysis,plot rms spectrum,power density spectrum, etc.)
Platform: |
Size: 16384 |
Author: 陈谷高 |
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