搜索资源列表
PSNR
- 峰值信噪比在信号处理中经常用到,这是一个将原始图像和压缩图像的峰值信噪比进行比较的例子。-Peak signal to noise ratio is often used in signal processing, which is a the original image and compressed image peak signal to noise ratio compared examples.
snr
- 信噪比MATLAB程序,可以分析信号的干净程度, 适合信号处理的初学者。-SNR MATLAB program that can analyze the cleanness of the signal, signal processing for beginners.
whitenoise
- 信噪比可变的加性高斯白噪声信道下信号发生器的VHDL语言编程实现-the realization of data-creater on AWGN channel
snr
- 计算语音、音频信号的信噪比程序(包含音频样本文件)-Calculation of voice, audio program signal to noise ratio (including the audio sample file)
fft
- 对正弦信号进行傅里叶变化,然后估计频率,在不同信噪比下画出均值方差的图-In the data process the measured complex time signal is converted into frequency signal by DFT to get vibration information regarding frequency and amplitude of the rotor
psnr
- function PSNR2 = psnr(I,I_iter) 计算峰值信噪比 I : 原始信号 I_iter : 加噪信号-function PSNR2 = psnr (I, I_iter) calculate the peak signal to noise ratio I: the original signal I_iter: adding noise signal
估计信号源个数
- 有两个文件,分别都是信号随着信噪比和快拍数变化,检测概率的趋势,对于阵列信号处理前段,信号源判断有着很大的帮助作用!
segmantal SNR
- 计算语音信号的信噪比和分段信噪比,在matlab中使用(Computing signal-to-noise ratio and segmentation SNR of speech signals are used in MATLAB)
nlm去噪
- 用于图像、信号的去噪,提高图像或信号的信噪比。(For image and signal denoising, to improve the image or signal to noise ratio.)
FM信号的仿真分析
- FM信号仿真代码详解,有关信噪比与FFT的变换(FM signal simulation, signal to noise ratio, FFT)
GPS数字中频信号仿真_吴倩倩
- gps中频信号的仿真,包括gps信号模型,卫星信号误差模型多普勒频移,信噪比(Simulation of GPS intermediate frequency signal)
SNR
- 基于小波变换的信号语音去噪及信噪比显示代码(noise-signal ratio it is very useful)
quzaocanshu
- 该程序用于计算信号去噪后的指标(平滑度、信噪比等)(The program is used to calculate the signal de-noising index (smoothness, signal to noise ratio, etc.))
snr2
- 信噪比的计算,对离散信号的信噪比计算有非常好的作用,程序可以直接用(The calculation of signal-to-noise ratio has a very good effect on the signal-to-noise ratio of discrete signals, and the program can be used directly.)
labview程序
- labview对信号fft变换及信噪比分析(Signal FFT transform and signal to noise ratio analysis of LabVIEW)
add_noise_pinyutu
- 进行纯净信号和加噪信号的时频域显示,及其包络图显示,并计算加噪信号的信噪比、互相关系数、峭度值,对信号进行离散余弦变换。(The time-frequency domain display of pure signal and noise-added signal and its envelope diagram display are carried out, and the signal-to-noise ratio, correlation coefficient and kurtosis
打包
- 两种不同的假设: H1 : 0 xn A fn wn ( ) cos(2 ) ( ) = ++ π θ n=1,2,…,N,f0 为规一化频率 H0 : xn wn () () = n=1,2,…,N 其中 w[n]是均值为 0,方差为 2 σ n 的高斯白噪声,A 已知,样本间相互 独立,信号与噪声相互独立; 相位θ 是随机变量,它服从均匀分布 1 0 2 ( ) 20 p θ π θ π ?? ≤ ≤ = ??? 其它 1)改变输入信噪比(改变 A 或噪声方差均可),给
generateWB_T
- 主要用于产生阵列宽带接收信号,% Input % array_number-阵元数 % doa-宽带信号来波方向 % snapshot-快拍数 % fc-中心频率 % Bw-信号带宽,码速率 % fs-信号采样率 % distance-阵元间距 % snr-信噪比 % Output % X_sig_t-阵列时域接收数据(It is mainly used to generate array broadband received signals.)
最大似然
- 两种不同的假设: H1 : 0 xn A fn wn ( ) cos(2 ) ( ) = ++ π θ n=1,2,…,N,f0 为规一化频率 H0 : xn wn () () = n=1,2,…,N 其中 w[n]是均值为 0,方差为 2 σ n 的高斯白噪声,A 已知,样本间相互 独立,信号与噪声相互独立; 相位θ 是随机变量,它服从均匀分布 1 0 2 ( ) 20 p θ π θ π ?? ≤ ≤ = ??? 其它 1)改变输入信噪比(改变 A 或噪声方差均可),给
信噪比SNR均方根误差 RMSE
- 信号降噪的评价参数 信噪比SNR:反映了信号中有用能量和噪声能量的比值 均方根误差 RMSE:反映了降噪信号与原始信号之间的差异程度