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Description: 仿真FFT参数对采用FFT算法分析信号频谱的影响。产生频率分别为2Hz，2.05Hz的正弦波合成信号，采样频率＝10Hz。-Simulation of the influence of FFT parameters on the frequency spectrum of the signal using FFT algorithm analysis. The frequency of sine wave synthesis are respectively 2Hz, 2.05Hz signal, the sampling frequency is 10Hz.
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Size: 1024 |
Author: sunrui |
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Description: This example solves a 2nd order wave equation: utt = uxx + uyy, with u = 0 on the boundaries. It uses a 2nd order central finite difference in time and a Chebyshev spectral method in space (using FFT). It compares to running the same algorithm on the GPU using gpu-arrays and built-in functions available for the GPU.
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Size: 33792 |
Author: Dan |
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Description: nco的产生原理的相关代码；软件无线电、直接数据频 率合成器（DDS，Direct digital synthesizer）、快速傅立叶变换（FFT，Fast Fourier Transform） 等的重要组成部分，同时也是决定其性能的主要因素之一，用于产生可控的正弦波或余弦波。随着芯片集成度的提高、在信号 处理、数字通信领域、调制解调、变频调速、制导控制、电力电子等方面得到越来越广泛的应用-nco the generation principle of the relevant code software radio, direct data frequency synthesizer (DDS, Direct digital synthesizer), Fast Fourier Transform (FFT, Fast Fourier Transform) and other important component, but also determine the performance of the main factors , controllable for generating a sine wave or cosine wave. With the improvement of chip integration, in signal processing, digital communications, modulation and demodulation, frequency control, guidance and control, power electronics, etc. to be more widely applied
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Author: 李毅 |
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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
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Author: 李杰 |
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Description: 利用 fft 快速傅里叶变换 和改进的sin函数模拟完成的实时水波模拟-fft fast fourier transform raeltime water wave simulation
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Size: 2038784 |
Author: whoz |
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Description: 正弦波的产生方法，以及fft频谱画图,初学者学习-The method of generating a sine wave, and the drawing fft spectrum
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Size: 1024 |
Author: wangwang |
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Description: 方波的产生，以及仿真，并作频谱（fft),入门学者-Produce a square wave, as well as simulation, and make the spectrum (fft), entry scholars
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Size: 10378240 |
Author: wangwang |
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Description: 锯齿波的产生，以及仿真，并作频谱（fft),入门学者-Sawtooth wave generation and simulation, and make the spectrum (fft), entry scholars
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Size: 1024 |
Author: wangwang |
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Description: 用matlab实现对于三角波的FFT变换，并绘制其频谱图-For the triangular wave using matlab FFT transform and draw its spectrum
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Size: 1024 |
Author: 刘赛赛 |
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Description: 插值FFT估计正弦波频率算法及其matlab实现-Interpolation FFT algorithm and its estimated frequency sine wave matlab achieve
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Size: 11264 |
Author: 张倩 |
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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: this file plot fft . in this file two sine wave
are plotted then by fft algorithm we plot fft
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Size: 1024 |
Author: naderff707 |
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Description: LabWindows_CVI作为一个用于建立自动测试系统的理想软件开发系统，提供了大量用于信号分析处理的函数，满足工程人员的需要。
信号产生实例工程“signal generation.prj”，LabWindows_CVI产生冲击信号、脉冲信号、斜坡信号、正旋信号、噪声信号、三角波信号等，在Graph控件中显示波形。
信号时域分析工程“timedomainanalysis.prj”，介绍了LabWindows_CVI信号的叠加、相关分析及卷积三种常用时域信号处理方式，将处理结果在Graph控件中显示。
信号频域分析工程“frequencydomainanalysis.prj”，介绍了LabWindows_CVI时域信号源FFT变换，可选用不同的加窗方式处理信号源，并利用FFT反变换得到原始信号，结果在。
信号滤波工程“filter.prj”，介绍了利用LabWindows_CVI信号处理函数构建巴特沃斯滤波器，利用信号处理函数构造不同阶次的低通、高通、带通、带阻滤波，结果在Graph控件中显示。-LabWindows_CVI as an ideal software development system for the establishment of an automatic test system provides a large number of functions for signal analysis and processing, to meet the needs of the project staff.
Signal generation example project signal generation.prj , LabWindows_CVI an impact signal, the pulse signal, the ramp signal, sine signal, noise signal, a triangular wave signals, waveform display in Graph control.
Signal time domain analysis project timedomainanalysis.prj , describes the superposition, correlation analysis and time domain convolution of three commonly used signal processing LabWindows_CVI signal, the results will be displayed in Graph control.
Frequency Domain Analysis of Engineering frequencydomainanalysis.prj , describes the time-domain signal source LabWindows_CVI FFT transform, can choose different way to deal with the windowed signal source, and use inverse FFT transform the original signal, resulting in.
Signal filtering project filter.prj
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Author: WangJ |
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Description: matlab程序
第一个是计算方波信号的DFT
第二个是不同时窗正弦信号的频谱分析
第三个是加窗后的频谱特性分析
第四个是4096点FFT的频谱
第五个是CZT变换
专注MATALB，各位大神给力奉献-The calculation of the square wave signal DFT
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Size: 2048 |
Author: sysk |
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Description: 使用半波采样数据进行快速FFT转换的方法-Half-wave sampling fast FFT
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Size: 1024 |
Author: ZWM |
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Description: 这是一个人体呼吸频率检测的仿真程序，对频率步进连续波雷达回波数据进行仿真，利用fft相干积累的方法获取人体呼吸频率-This is a human respiratory frequency detector simulation program, for frequency step continuous wave radar echo data simulation method utilizes fft coherent accumulation of obtaining human respiratory frequency
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Size: 1024 |
Author: 李爽 |
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Description: FMCW调频连续波雷达的测距测角，Relief计算分类权重，基于kaiser窗的双谱线插值FFT谐波分析，阵列信号处理的高分辨率估计，最终的权值矩阵就是滤波器的系数，一些自适应信号处理的算法。- FMCW frequency modulated continuous wave radar range and angular measurements, Relief computing classification weight, Dual-line interpolation FFT harmonic analysis kaiser windows, High-resolution array signal processing estimates, The final weight matrix is ??the filter coefficient, Some adaptive signal processing algorithms.
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Size: 5120 |
Author: drvusnypt |
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Description: 基于kaiser窗的双谱线插值FFT谐波分析，实现了对10个数字音的识别，使用起来非常方便，是机器学习的例程，合成孔径雷达（SAR)目标成像仿真，最大似然（ML）准则和最大后验概率（MAP）准则，FMCW调频连续波雷达的测距测角，脉冲响应的相关分析算法并检验。- Dual-line interpolation FFT harmonic analysis kaiser windows, To achieve the recognition of 10 digital sound, Very convenient to use, Machine learning routines, Synthetic Aperture Radar (SAR) imaging simulation target, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion, FMCW frequency modulated continuous wave radar range and angular measurements, Related impulse response analysis algorithm and inspection.
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Size: 6144 |
Author: zbahtkm |
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Description: 主要是基于STM32的音乐喷泉调试程序，采样音频信号进行FFT变换，再输出PWM波控制电机出水。-Mainly musical fountain debugger STM32-based sampling FFT transform audio signals, and then outputs PWM wave to control the motor water.
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Size: 5603328 |
Author: 刘记 |
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Description: ofdm系统仿真 含16qam调制 fft 加窗 加cp等模块，FMCW调频连续波雷达的测距测角，利用matlab GUI实现的串口编程例子。- ofdm system simulation including 16qam modulation fft windowing modules plus cp, FMCW frequency modulated continuous wave radar range and angular measurements, Use serial programming examples matlab GUI implementation.
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Size: 4096 |
Author: 刘秋 |
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