白噪声中单个正弦信号的频率检测与估计 产生，其中是一高斯白噪声，其均值为0，方差为1。用MUSIC方法估计观测数据中正弦波的频率，并给出白噪声方差()un2uσ 与复正弦波的振幅A的估计值。-A single frequency detection and estimation of the sinusoidal signal in white noise, which is a Gaussian white noise with mean 0 and variance 1. MUSIC m

对图象或信号噪方差进行估计,对二维三维或更高维度的图象进行去噪。-The image or the signal-to-noise variance estimation, two-dimensional or three-dimensional image de-noising higher dimensions.

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)

数据滤波是去除噪声还原真实数据的一种数据处理技术, Kalman滤波在测量方差已知的情况下能够从一系列存在测量噪声的数据中，估计动态系统的状态. 由于, 它便于计算机编程实现, 并能够对现场采集的数据进行实时的更新和处理(Data filtering is to remove noise and a data processing technique of real data reduction, Kalman filter can from a series of measurement no