Second, the Gaussian exact variational inference algorithm and the Gaussian mean field variational inference algorithm are designed based on the Gaussian Markov random field models. 在高斯马尔可夫随机场基本模型上,设计了精确变分推理算法和均值场变分推理算法。
The simulation of second derivative of Gaussian pulse as UWB signal waveform is conducted. The distorted waveforms are obtained from only experienced phase response distortion, only experienced amplitude response distortion, and experienced both phase and amplitude response distortion, respectively. 使用该模型对高斯二阶导数脉冲信号的波形失真进行仿真分析,得到了只发生相位响应失真、只发生幅度响应失真、以及同时发生相位&幅度响应失真的脉冲波形。
It is verified that the first directional derivative and second directional derivative of gaussian function are concessional wavelets and has the character of symmetry and dissymmetry. 证明了高斯函数,它的一阶,二阶方向导数也是容许小波,同时具有对称和反对称的性质。
The conventional signal processing methods, which are based on second order statistics and Gaussian noise, is relatively easy to analyze. However, many channel noises do not obey Gaussian distribution in practical applications, especially communication systems. 传统的信号处理方法以高斯背景噪声和二阶统计量模型为基础,容易分析,但实际的应用中,尤其是各种通信系统中存在大量非高斯脉冲噪声。
Normal oil spill detection uses the first and second derivatives of a Gaussian function as the basic wavelet function, which has slow computing speed. 通常的SAR图像油膜检测采用高斯函数一阶导和二阶导作为小波基函数,运算速度慢;