搜索资源列表
sndpeek
- 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! (inte
FFT
- 利用FFT估计正弦信号的频率,要估计一个叠加了高斯白噪声的正弦信号 的频率 ，可以通过对x(n)做傅里叶变换，得到频谱图，找出幅度的最大值对应的频率值 ，进行多次变换，求出均方误差 。改变信噪比SNR，通过仿真可以得出随着信噪比增加，均方误差减小。-Sinusoidal signal using FFT frequency estimation, to estimate a Gaussian white noise superimposed on the frequency of sinusoi
Mars_v2
- GPU实现的MapReduce framework,对于学习并行编程和cuda平台的编程方面有着极好的参考价值，里面附带论文。用户要求有NViDIA显卡，并且安装cuda编程环境。-We design and implement Mars, a MapReduce framework, on graphics processors (GPUs). MapReduce is a distributed programming framework originally proposed by
fft2048
- 2048点实序列fft 采用优化地方法节省存储空间和运算时间。包括2048点实序列fft，信号幅度谱分析和排序。本程序用于基于tms320lf2407的波形采集与分析上，能够精确分析信号的幅度和频率分量。-2048-point sequence is optimized to fft method used to save storage space and computing time. Including the 2048-point real sequence fft, signal am
MCUAD
- 本音频信号分析仪由32位MCU为主控制器，通过AD转换，对音频信号进行采样，把连续信号离散化，然后通过FFT快速傅氏变换运算，在时域和频域对音频信号各个频率分量以及功率等指标进行分析和处理，然后通过高分辨率的LCD对信号的频谱进行显示。该系统能够精确测量的音频信号频率范围为20Hz-10KHz，其幅度范围为5mVpp-5Vpp，分辨力分为20Hz和100Hz两档。测量功率精确度高达1 ,并且能够准确的测量周期信号的周期，是理想的音频信号分析仪的解决方案。-The audio signal ana
IR
- 对IQ接收器最重要的两个参数,即I和Q两路分量之间的幅度一致性和相位正交性,可采 用如下办法计算:把I、Q 两路信号分别作FFT ,找出频域内信号的幅度,即可算得两路分量的幅度一 致性 把I、Q两路信号合成一个复数信号,作FFT ,对得到的频谱求镜像抑制比(即频域内的信号与信号镜像的幅度比) ,通过镜像抑制比和幅度一致性,可求出接收机的I和Q两路分量之间的相位正交性。-IQ receiver for the two most important parameters, namely
musicdsp
- musicdsp source code archive-Analysis Beat Detector Class Coefficients for Daubechies wavelets 1-38 DFT Envelope detector Envelope Detector class (C++) Envelope follower with different attack and release Fast in-place Walsh-Hadamard Tra
conv_fht
- 基于fht的匹配追踪算法，算法速度要比fft快很多，提高了一个数量级-Fht based matching pursuit algorithm, the algorithm much faster speed than fft, an order of magnitude increase
FFt
- 对连续的单一频率离散序列 ，即k=8。 按采样频率 采样，截取长度N分别选N =20和N =16，观察其DFT结果的幅度谱。 -Discrete to continuous sequence of single frequency, ie k = 8. According to the sampling frequency sampling, truncation length N = 20 N, respectively, and selected N = 16, observed the
fftplot
- compute and/or plot the magnitude in dB and phase in degrees of the FFT data in Y
fft
- 产生一个正弦衰减曲线，进行快速傅里叶变换，并画出幅值图，相位图，实部图，虚部图-Decay to produce a sine curve, the fast Fourier transform, and draw magnitude diagram, phase diagram, the real figure, the imaginary part of Fig.
fftfenxi
- 对一个模拟信号进行fft变换，并求出其幅值图和相位图，对于fft初学者会有一定的用途-An analog signal fft transform, and find its magnitude and phase diagrams, for beginners there will be some use of fft
An-improved-Hilbert-Huang-method-for-analysis-of-
- The Hilbert–Huang method is presented with modifications, for time-frequency analysis of distorted power quality signals. The empirical mode decomposition (EMD) is enhanced with masking signals based on fast Fourier transform (FFT), for separat
FFT_angle_A
- 利用fft来估计幅值和相位，打算和随机共振一起使用的-Use fft to estimate the magnitude and phase, intended to be used together and stochastic resonance
New-folder
- magnitude, fluctuation and phase spectrum - fft
rayleigh-channel
- This program simulation Rayleigh channel and Magnitude of fft of a single realisation of X(t) and Calculating the central moments and beta values for in and quadrature phase.
FFTbianhuan
- 对已知的以为数据进行FFT变换，得到数据的频谱图，进而可分析出幅值和相角。-Known that the data FFT, the frequency spectrum of the data, which can be analyzed magnitude and phase angle.
fft
- 对采样信号进行FFT变换，并计算出频域的幅值。查看变量，生成FFT曲线图.基四频域FFT算法，CCS-FFT, the sampling signal and calculate the magnitude of the frequency domain. Viewing Variables, generate FFT graph. Base four frequency domain FFT algorithm, CCS
FFT
- the matlab code attached show how to Display magnitude and phase of 2D FFTs, invers FFT and switch magnitude and phase of 2D FFTs
Nexys4FFTDemo-master
- A simple Verilog example of a 4096pt FFT on analog input from a Nexys 4 XADC. The input is sampled at 1MSPS, oversampled to produce 14-bit samples at 62.5kHz, then sent to the FFT processing modules and passed through to PWM Audio out. The FFT output