课程设计中首先采用Ising model的思想建立一个二维的模型，然后利用重要性抽样和Monte Carlo方法及其思想模拟铁磁-顺磁相变过程。计算了顺磁物质的能量平均值Ev、热容Cv、磁化强度M及磁化率X的值，进而研究Ev、Cv、M、X与温度T的变化关系并绘制成Ev-T图、Cv-T图、M-T图、X-T图，得出顺磁物质的内能随着温度的升高先增大而后趋于稳定值；热容Cv、磁化率X随着温度的升高先增大后减小；磁化强度M在转变温度Tc处迅速减小为零，找出铁磁相变的转变温度Tc大约为2.35,First

确定重要性抽样函数方法的讨论 重要性抽样法是提高直接抽样法计算效率的一种方法。方法简单运算率高，在可靠性分析和计算中常用。选择合适的重要性函数是关键-a study of method for choosing the importance sampling function much simpler than those before. examples are given

We consider the source localization problem using time-difference-of-arrival (TDOA) measurements in sensor networks. The maximum likelihood (ML) estimation of the source location can be cast as a nonlinear/nonconvex optimization problem,

As the computer hardware developing and the fast advances of computers in the last several years, Monte Carlo particle filter algorithms, which origin Monte Carlo methods, have become popular again. The Monte Carlo particle filter algorithms in thi