本文介绍了一种实际散斑模式的数学模型和噪声统计模型，并提出了一种针对这种模型的自适应次优滤波方法。

A statistical noise model and a mathematical model for real speckle pattern are presented, and then, in view of the models, a new adaptive suboptimal image filtering approach is proposed.

youdao

首先基于统计数据和经验知识，建立神经网络，数学模型和规则模型。

First, neural networks, mathematical models and rule models are constructed based on statistical data and empirical knowledge.

youdao

介绍了生物活性多肽定量构效关系（QSAR）中化学结构描述符和建立数学模型统计方法的研究概况。

This paper introduced the study general situation of the chemical structure descriptors and statistical method of mathematical modeling in bioactivity polypeptide QSAR research.

youdao