1001-0505(2013)02-0296-05

由于非线性光学中计算非线性折射系数的数值模拟(as calculated nonlinear optical nonlinear refractive index of numerical simulation)

让ARToolKit支持MQO模型所需的所有函数实现代码，均在对应的GLMetaseq.c中。(Let ARToolKit supports all the functions needed to MQO model codes, both in the corresponding GLMetaseq.c.)

用双线性变换法设计IIR数字滤波器 滤波就是将外界干扰的不需要的频率滤除掉，一面影响要测试数据的结果。比如如果是心电波的话，如果这是外界有很大的噪声干扰，滤波就是把不必要的信号给抑制掉，以便对心跳的正常测试。通过图比较，滤波后的明显比之前的要平滑，就是滤去干扰噪声的结果。采样间隔对实验有影响，取的过大会导致频率混叠。(Bilinear transformation method using digital filter IIR filter design is to outside interference filter out unwanted frequencies, while the impact to test data results. For example, if it is so heart waves, if this is a great noise outside interference, filtering is unnecessary signal out to the curb in order to test the normal heartbeat. Through chart comparison, after filtering than before to smooth the noise interference is the result of least squares. Sampling interval of the experiment affect take-off frequency of the General Assembly leading to aliasing.)

变步长LMS算法性能比较与仿真.希望有帮助(Variable step size LMS algorithm performance compared with the simulation. Hope that helps)

说明：  这是学习扩展卡尔曼滤波算法的很好的一个程序。(this study is extended Kalman Filter algorithm of a very good process.)

说明：  双发多收的8PSK仿真，统计MIMO的误码率(8PSK overcharged double simulation, statistical MIMO bit error rate)

中国石油大学高春侠matlab课程课件，边进行知识点讲解边进行代码演示，ppt中附带可用源码(China University of Petroleum GAO ​ ​ Chun Xia matlab courseware, knowledge points to explain the side edges demo code, ppt included with available source)

本章先分析说明伪谱法求解波动方程的算法原理，再给出弹性波场伪谱法数值模拟的改进算法；然后，通过直接引入P波波场变量和S波波场变量，给出可实现弹性波场的P波和S波分解的波动方程，并用伪谱法实现弹性波场的P波和S波分解的数值模拟；最后用伪谱法对井间地震的复杂波场作数值模拟，分析井间地震波场中各种波的传播规律。(In this chapter, the principle of pseudo-spectral method for solving wave equation is analyzed, and then an improved algorithm for numerical simulation of elastic wave field is given. Then, by directly introducing P-wave field variable and S-wave field variable, the wave equation which can realize P-wave and S-wave decomposition of elastic wave field is given, and the P-wave sum of elastic wave field is realized by pseudo-spectral method. Numerical simulation of S-wave decomposition; finally, pseudo-spectral method is used to simulate the complex cross-well seismic wave field and analyze the propagation law of various waves in cross-well seismic wave field.)

之字扫描，是在JPEG压缩中使用的一个数据扫描格式。自己在MATLAB中编程实现了正反函数。(zigag scanning is a mode of data scanning in JPEG data hoop.This codes realize the zigzag scanning and the inverse zigzag scanning.)

matlab的 通信 系统仿真，希望对大家又帮助(Matlab communications system simulation, we also hope to help)