查询词典 probability density

We also obtain the representation formula for the transition probability density of a right process under Esscher transform and the infinitesimal generator of the transformed process.

此外，我们还得到了右过程在Essche变换下的转移密度表示公式及变换后过程的无穷小生成元。

The computation of the infinitesimal generator matrix of the stochastic marking process underlying the First order FSPN model is described, which accounts for the transition rates among discrete tangible states. After that the transient state and steady state equations for the probability density functions describe the stochastic marking process are presented.

在说明了一阶流体随机 Petri 网随机标识过程在离散实存状态空间的转移速率矩阵等的计算方法后，给出了描述随机标识过程状态的概率密度函数在暂态和稳态情况下满足的方程。

In order to discuss the property of the ambiguity residual error vector, the joint probability density function between the integer ambiguity solution and the ambiguity residual error vector is also introduced in this section.

为了讨论模糊度残差向量的性质，本文也介绍了模糊度整数解和模糊度残差向量的联合概率密度函数。

In the thesis we consider the dividends of an O-U insurance risk model with investment and the Laplace transform of the probability density function of the time of ruin.

本文考虑的是带投资的O-U过程保险风险模型的分红和破产时的拉普拉斯变换问题。

Present a new LVQ wavelet image coding algorithm in which entropy coding and enumeration codes of different length are utilized. For wavelet image coding, there is a problem of mismatch between lattice distribution and the input vector probability density function in traditional LVQ algorithms (such as product-code pyramid VQ and piecewise uniform LVQ).

提出一种使用熵编码和非等长枚举码的格点矢量量化算法用于小波图象的编码，该算法以格点标记码码长的变化来适应输入矢量的非均匀分布，解决了传统的乘积码塔形矢量量化和分块均匀格点矢量量化算法中格点的调整难以与输入矢量概率分布实现良好匹配的问题。

After studying the theory of combined signal processing with acoustic pressure and particle velocity, a method of direction estimation underwater, which is based on intensity measurement using an acoustic vector sensor, is presented. In the low frequency field with kinds of line-spectra, azimuth angle estimation is achieved based on the probability density statistics and bar graph approach. It can preferably resolve the problem of left/right bearing resolution and estimate the direction of space.

为了对水下目标进行定位，基于声压与振速联合信号处理的理论，研究了复声强法对水下目标信号的定向技术，并使用概率统计和直方图的理论对目标的方位角和俯仰角值进行了估计，在线谱分量存在的低频段对估计角度进行了概率统计，较好地解决了左右舷的分辨问题，实现目标的全空间无模糊定向。

Research into the method of establishing probability density function model of radar clutter signals Based on the careful analysis of the kernel estimation and the fundamental principles of the Legendre polynomial, the dissertation tentatively combines two and gets better results.

雷达杂波信号的概率密度分布模型建立方法的研究在认真分析了核估计和Legendre多项式的基本原理的基础上，探索性地将两者结合起来，取得了很好的效果。

Moreover, simulation results show that it has a better performance in terms of the probability density functions of the envelope and phase, the level crossing rate, and the average fade duration than the previous methods.

仿真结果表明，改进后的方法生成的复随机过程的幅度、相位的概率密度函数及平均电平通过率、平均衰落持续时间能更好地逼近理论参考值。

It shows that the lognormal probability density distribution of the SWH is in a wel...

同时，分析了有效波高大于4 m的巨浪在东中国海的时空分布特征，表明巨浪多出现在冬、秋两季，平均有效波高最大值出现在夏季，且主要分布在东中国海东南部。

Turbine blade ; Structural reliability ; Neumann problem ; Finite element method ; Probability density function

涡轮叶片；结构可靠性；诺曼问题；有限元法；概率密度函数

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。