... 一些重要噪声的概率密度函数（Some Important Noise 噪声参数的估计（Estimation of Noise Parameters） 空间域滤波复原（Restoration with Spatial Filtering） ...
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在考虑多通道非平稳信号干扰及背景噪声的情况下，提出了基于自适应参数型时间延时估计方法。
Taking into account the multi channels disturbance and noises with the non stationary characteristic, time delay estimation based on adaptive parametric approach is proposed.
文中给出了模型参数、模型误差和噪声误差的估计。
The estimations of model parameter, model error and noise error are given.
为了有效复原退化图像，需要从模糊图像中估计模糊函数的某些参数、噪声统计量等相关信息。
In order to restore blur image effectively, certain parameter of blur function and statistical value of noise have to be estimated.
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