搜索资源列表
vc++pujian
- vc++的谱减程序,与martin的谱减算法相对应,包括fft,iff,hamming窗,噪声估计及谱减主体等成员函数
增广最小二乘估计
- 如果噪声e(k)为有色噪声时,采用最小二乘辨识系统参数为有偏估计,为改善噪声e(k)为有色噪声模型的系统参数估计的统计特性,提出一种增广矩阵的方法
PSD.rar
- 求功率谱估计常用的几种方法,包括周期图法,Welch 法,和AR模型法。,For power spectrum estimation commonly used in several ways, including periodogram, Welch law, and the AR model.
martin2001.zip
- 经典噪声估计,用于speech enhancement,noise estimation algorithm in speech enhancement
esprit.rar
- 用esprit算法估计复正弦加白噪声的信号频率,f给出正弦信号的频率估计值,Esprit algorithm with an estimated increase in complex white noise sinusoidal signal frequency, f the frequency of sinusoidal signal given the estimated value of
weinat
- 基于DD算法的先验信噪比估计的维纳语音降噪完整程序,包括语音分帧,动态信噪比估计,噪声估计更新和帧的重构。很完整。-DD algorithm based on a priori signal to noise ratio is estimated that the integrity of the process noise reduction Wiener voice, including voice sub-frame, dynamic signal to noise ratio estim
speech_enhancement_matlab_by_lx
- 实验结果表明该算法对非冲击噪声效果良好。 lx_main为主程序,NS_lxwz为噪声估计模块,lxG_wz为增益估计模块,noise_sound为测试用含噪语音。 算法原理参见本人的文章《一种引入延迟的语音增强算法》。-Experimental results show that the algorithm for non-impulsive noise effect is good. lx_main the main program, NS_lxwz for the noise es
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
RELS
- 增广最小二乘法参数估计,系统辨识,针对含有输出噪声的SISO模型。-Augmented least squares parameter estimation, system identification, aimed at containing the output noise of the SISO model.
Matlab-FinishedOne
- 针对夹杂有白噪声的正弦信号的功率谱估计仿真-Mixed with white noise for sinusoidal signal simulation of the power spectrum estimation
MATLAB
- 对噪声信号中的正弦信号,通过Pisarenko谐波分解方法、Music算法和Esprit算法进行频率估计,信号源是: 其中, , , ; 是高斯白噪声,方差为 。使用128个数据样本进行估计。 1、用三种算法进行频率估计,独立运行20次,记录各个方法的估计值,计算均值和方差; 2、增加噪声功率,观察和分析各种方法的性能。-Sinusoidal signal in the noise signal through the Pisarenko harmonic decomposition metho
levinsonf
- 信号为两个正弦信号加高斯白噪声,用levinson递推法进行功率谱估计。-Signal for two sinusoidal signal plus Gaussian white noise, with levinson recursive power spectrum estimation method.
CEinCommun
- 各种信噪比估计算法,包括ls,lms,qam,噪声统计等-A variety of SNR estimation algorithms, including ls, lms, qam, noise statistics, etc.
hyperspectral-noise-estimation-master
- 对高光谱的噪声进行估计,并具有良好效果。(Hyperspectral noise is estimated)
noise level estimation PCA-based
- 利用PCA,提取图像中特征值最小的区域,来估计图像噪声(PCA is used to extract the smallest region of the image feature to estimate the image noise)
01424470
- 子空间噪声估计方法,一篇具有一定参考价值的论文(Subspace-Based Noise Variance and SNR Estimation for OFDM Systems)
DA_phase_noise_estimation
- 程序包含调制解调两部分,需结合optisystem软件运行,是基于数据反馈的相位噪声估计算法,适用于光OFDM系统。(The program consists of two parts, modulation and demodulation. It needs to run in conjunction with optisystem software. It is a phase noise estimation algorithm based on data feedback, and i
基于frft估计线性调频信号的参数
- 使用frft变换来估计线性调频信号的初始频率和调制斜率,估计精度高,不含噪声滤波。
PLC信道与噪声建模
- 其中包含低压电力线信道建模,低压电力线信道中的噪声建模,以及对低压电力线信道容量的估计,可顺利运行。
IMCRA111
- IMCRA(Improved?Minima Controlled Recursive Averaging,IMCRA),它们虽然保证了噪声谱估计的准确性,但在追踪带噪语音平滑功率谱最小值时采用了固定时间窗,因此,在噪声突变的情况下,估计的噪声谱存在很长的延时。(IMCRA, Although they ensure the accuracy of noise spectrum estimation, they use a fixed time window to track the minimu