IIR

考虑L的三个不同值：L＝256（3个数据段），L＝128(7个数据段)和L=64（15个数据段）。各自的谱估计图如上图所示。可以明显的看到，加窗明显的减小了频谱上的假谱峰，但也更加进一步平滑了谱峰。所以，对于L＝64的情况，在ω＝0.8π的谱线可以很确定的辨认，但是那两个靠近的谱峰不容易区分。对于L＝128的情况，这种情况提供了在分离和检测间最好的均衡。当然，对于在L＝256时的情况，效果是更好的，能够从谱估计图上明显的分辨出三条谱线的存在以及它们幅度关系的强弱。 除了Welch法外，还可以采用对多个周期图求平均的功率谱估计方法的其他方法如Bartlett法等等，在功率谱估计上也能取得较好的结果。(consider three different values : L = 256 (3 data), L = 128 (7 data) and L = 64 (15 data). Their spectral estimation map as shown in Fig. It is clear to see that increase significantly decreasing window of the spectrum of false peaks, but much more to further smooth the peaks. Therefore, L = 64, in the case = 0.8 spectrum can determine the identification, but that the two peaks around is not easy to distinguish. L = 128 for the situation, which provided the separation and detection among the best balanced. Of course, L = 256 in the case, the effect is better, from the spectral estimation map clearly distinguish between the three lines of the existence and their relationship to the rate of strength. In addition to Welch law, but also can be used to map multiple cycle for the average power)

说明：  用MATLAB搭建的一个小项目界面用于处理遥感图像的配准，除了三组图像数据和方法。(Using MATLAB interface to build a small project for processing of remote sensing image registration, in addition to three sets of image data and methods.)

Basic Kalman filter, heavily commented, for beginners to Kalman filtering.

信号的二阶累积量估计,cum2函数为互二阶累积量估计，cum2est函数为单个向量的二阶累积量估计(The second order the cumulative estimated cum2 function for mutual order cumulants estimated cum2est function as a single vector order cumulant estimation)

三相PWM整流电流预测仿真。。。。。。。。。。。。。。。(PWM matlab)

生成指定概率分布的随机数，可用于数学与金融的随机分析(Specify the probability distribution of randomly generated number, can be used for the stochastic analysis and financial mathematics)

The aim of this application is to implement scalable mpeg type compression by varying DCT coefficients and finding minimum number of DCT coefficients that can give minimum acceptable quality.. This application only works for gray scale.

本资料介绍了灰色预测的概念和用途，也包含了算法的matlab实现(GM matlab)

有源滤波器设计经典书籍，作者D.Lancaster(Active-Filter Cookbook by D.Lancaster)

matlab 代码 实现 spca分解(matlab code spca decomposition)