Analysis-K-SVD

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：  IEEE33节点的潮流计算程序，使用了前推回代方法。(IEEE33 node power flow calculation program)

simulation matlab (la localisation par GPS)

truss analizer analize the truss with matlab code

移频法实现啸叫抑制，通过对回声信号做移频，使得回声信号加上输入信号不会再某一频点能量过大产生啸叫(Frequency shift method to achieve howling suppression, echo signals by frequency shift do so echo signal plus input signal will no longer produce a certain frequency can be excessive howling)

matlab basic can be used any where

本程序实现了16个脉冲信号的脉压、MTI/MTD，该源代码对于信号处理学习和工程有比较高的价值 (The realization of 16 pulse signals, the pulse pressure of MTI/MTD, the source code is a relatively high value for study and engineering signal processing)

随机网络的仿真计算，用Matlab来实现的源代码。(Stochastic network simulation, using Matlab to implement the source code.)

Matlab的入门教程PPT 1、MATLAB 7简介 2、MATLAB 7安装方法 3、基本的使用方法 4、数值向量和数组 5、字符串、单元数组和结构 6、符号运算 7、图形运算 8、图形处理 9、GUI图形设计 10、MATLAB 7程序设计(Matlab Tutorial PPT 1, MATLAB 7 Introduction 2, MATLAB 7 installation methods 3, the basic use 4, numerical vectors and arrays 5, strings, cell arrays and structures 6, symbolic computation 7 graphics computing 8 graphics processing 9, GUI Graphic Design 10, MATLAB 7 Programming)

Matlab program files mitra 3 edition