dryd

第四版prokias数字通信配套代码之第五章(source code(matlab )for prokias Digital Communication (4th edition))

用MATLAB编写的一个多频正弦信号的AR模型功率谱估计程序 用的是LEVISION算法 阶数判定使用的是最优算法 并与库函数进行对比(MATLAB prepared a multi-frequency sinusoidal signals in the AR model power spectrum estimation procedures using the electron ISION algorithm order determined using the optimal algorithm and with the contrast function)

程序完成的功能是用lms算法对声音去噪声。运行后先会听到canon的一小段无噪声的音乐，然后会听到加了噪声后的效果，最后会听到用lms去噪之后的声效。(Program to complete the function with lms algorithm to noise sound. Run first hear the canon of short noise-free music, plus the effect of noise will then hear, and finally will hear the sound denoising with lms.)

基于svd算法的matlab源码，压缩.bmp格式的位图为例(Based on the SVD algorithm matlab source, compressed. Bmp format Bitmap example)

一位意大利博士编写的关于online SVR的工具箱，对我启发很大。附加了Powell法优化工具(a matlab toolbox about online SVR and Powell)

考虑出生率、死亡率、迁移率及居民年龄分布的人口预测程序(Population forecast program considering several factors including fertility, mortality, migration rates and age structure)

文章Image information and visual quality的程序———应用视觉保真度（ＶＩＦ）的方法(Article Image Information and Visual quality program--- visual fidelity (VIF))

SMI方向图和性能(波束形成算法，自己修改） 优点： 收敛速度快 缺点：1 当阵元输出含有较强的期望信时，或者期望信号与干扰信号相关时，性能急剧下降.2 由于权向量含有方向矢量，因此对阵列的幅相差非常敏感；3 ,期望信号的功率不能过大，比干扰信号相差几十dB，也就是说，在小期望信号、大干扰信号情况下，也可进行SMI处理。 (SMI pattern and performance (beamforming algorithm, make changes to) Advantages: fast convergence Disadvantages: 1 output when the array elements with strong expectations of the letter, or related to the desired signal and interference signals, the performance sharply .2 direction vector containing the weight vector, so the array is very sensitive to the amplitude difference 3, the desired signal The power can not be too large, than the difference between the scores of interference signal dB, that is, in the small desired signal, large signal interference case, SMI can also be handled. )

判断一个点是否在两条线段（或是四个点）所包含的的区域内(Determine a point whether the two segments (or four points) are contained within the area)

该书详细介绍了如何使用Matlab提供的信号处理工具箱函数进行信号处理，并通过大量的实例，说明了用Matlab进行信号处理的方法。(The book details how to use the Matlab Signal Processing Toolbox provides functions for signal processing, and through a large number of examples to illustrate the use of Matlab for signal processing method.)