ToolboxOfMatlab

说明：  提供坐标轴缩放、转换、设置的matlab环境模版。(Provide axes scaling, conversion, set the template of the matlab environment.)

说明：  MATLAB 巴特沃斯低通滤波对图像进行低通滤波处理(matlab)

三种角点提取方法的matlab程序，用于摄像机标定。(three methods of corner extract based on matlab。)

用于产生FSK信号的程序，调用该函数直接产生FSK信号(used to proceed fsk signal, and it is very useful in signal processing)

matrix converter is having advantages when compared to traditional converters. the loss are less in this converter.

说明：  Matlab智能算法30个案例分析，详细分析讲解了30个matlab案例(Analysis of 30 cases of Matlab intelligent algorithm)

为南京邮电大学的MATLAB教程，精通MATLAB辅导与提高，内附例程。(Nanjing University of Posts and Telecommunications of the MATLAB tutorials, counseling and improving proficiency in MATLAB, enclosing routine.)

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：  matlab教材的电子图书还有课件和讲义对初学者很有帮助(matlab e-books are very helpful for beginners courseware and handouts)

echo cancellation adaptive filter