pw1

Butterworth Bandpass Filter

对nii文件进行Z变换，并保存成nii文件(Z transform to the NII file and save it as a NII file)

说明：  不同的K近邻分类算法，基于matlab开发，不错。(matlab knn classification)

模拟退火算法训练程序，结合了BP神经网络算法(The simulated annealing algorithm for the training program, combined with the BP neural network algorithm)

HMM模型的参数学习，利用的是Baumwelch方法，进行交叉迭代(HMM model parameter learning, the use of the Baumwelch way cross iteration)

smthing i do not understand

说明：  《MatLab工具箱应用指南：控制工程篇》；电子工业出版社出版("MatLab toolbox Application Guide: Control Engineering articles" Electronics Industry Publishing House)

调试成功的测距定位仿真（TOA）。三个函数的作用分别是：在一个正方形区域内随机选择10个点；在这10个点中选择被测结点和参考结点；LSE位置计算。(Ranging and Location debug successful simulation (TOA). The role of the three functions are: a square area in 10 randomly selected points 10 points in the selected node under test and reference nodes LSE position calculation.)

在这个例子中，我们对有三条固定路径的AWGN多径信道中的QPSK系统进行BER性能仿真，并与在理想的AWGN信道（没有多径）中同样系统的BER性能进行比较。(In this example, we have three fixed-path multipath AWGN channel QPSK system BER performance simulation, and in an ideal AWGN channel (no multipath) in the same system BER performance comparison Progressive line.)

Newton插值公式实例，改变插值节点个数，观察不同的插值函数的逼近效果.(Instance of the Newton interpolation formula, change the number of interpolation nodes, and observe the different interpolation function approximation.)