cyclic2

这是对网孔均衡的仿真，网孔均衡是通信系统的必须，希望它对大家对通信系统的了解有更大帮助(This is the mesh balanced simulation mesh balance is the essential communication system, we want it to the communications system will be of greater help to understand)

应用MATLAB编写的二维时域有限差分程序。是初学FDTD的好帮手。建议初学者参考。(Application of MATLAB to prepare two-dimensional finite difference time domain procedure. FDTD are learning a good helper. Recommended reference for beginners.)

工作流系统模型的性能等价分析􀃃 讨论了基于随机Petri网的工作流系统的顺序、并行、选择、循环4种基本模型,并详细推导了这4种基本模型的性能等价公式.最后通过现实中的一个工作流实例来说明如何建立相应的随机Petri网模型,以及如何利用这些性能等价公式来计算工作流的性能参数.给出了定量分析工作流系统性能的通用方法,通过用这些等价公式不仅可以对复杂的系统进行性能等价化简,而且还可以得到性能参数的乘积解.(Workflow Performance Equivalent points)

Introduction of the Particle Swarm Simulated Annealing Algorithm in Function Optimization

采用高斯平滑滤波，多种算子进行边缘检测，设定阈值，两种算法进行图像分割(Gaussian smoothing filter, a variety of edge detection operator, set threshold, the two algorithms for image segmentation)

This program segment the tumor present in brain image. Sine brain symmetric about central axis brain is divided into 2 equal halves about the central axis.Histogram of both the part is taken. based on the histogram threshold is set.Result of segmentation is the segmented tumor.

时变信道的频率选择性和时变性。系统的输入是一个BPSK信号。系统的时变特性使BPSK信号作为时间的函数，发生衰减和相位旋转。(Time-varying channel frequency selectivity and time variability. Input to the system is a BPSK signal. System is time-varying characteristics make BPSK signal as a function of time, the occurrence of attenuation and phase rotation.)

几个对多径衰落信道的仿真程序，多径衰落是无线通信中的关键问题之一，仿真程序有助于加深对该过程的理解。(failed to translate)

NOAA网站AVHRR卫星数据绘图（SST）。数据选用原因:它本身是已经被处理过的27年（1982-2008）全球月平均数据，而且数据精度非常高，对于研究全球SST的气候态特征有较好的说服性；另外，选择2月与8月的数据，对描述海洋水温的平面分布更具有代表性。 (NOAA AVHRR satellite data mapping site (SST). Data Selection reasons: it is itself already been treated for 27 years (1982-2008) global average monthly data, and the data accuracy is very high, for the study of global climate SST state characteristics have better persuasive addition, February with the data in August, and the description of ocean water temperature plane distribution more representative.)

对广义高斯分布有个基本的认识，为以后的应用打下基础(The generalized Gaussian distribution have a basic understanding of lay the foundation for future applications)