... Noise Level Estimation 杂讯标准差估计 Noise Variance Estimation 噪声方差估计 Signal to noise ratio estimation 信噪比估计 ...
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channel noise variance estimation 信道噪声方差估计
background noise variance estimation 背景噪声方差估计
estimation of noise variance 噪声均方估计
A robust fusion algorithm based on noise variance estimation is presented.
给出一种基于噪声方差估计的稳健融合算法。
Instead of many algorithms rely on accurate estimation of noise variance, this algorithm estimates noise energy through DCT which extracts local feature.
该算法不依赖于对噪声方差进行估计，直接利用DCT变换对高频各个子带进行局部特征提取，从而估计噪声能量的估计阈值。
When the noise variance is known, and it's process is stationary, the signal can be enhanced by use of the recursive least mean-square estimation.
当噪声的方差已知，且过程是平稳的，应用递推最小方差估计，能够增强信号。
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