2D_FDTD_scattering

说明：  matlab里Hough变换的一个大体框架 只是是txt的格式(matlab in a general framework of the Hough transform is a txt format)

奇异值分解用于英文文本检索，画出频率矩阵第一奇异值向量和第二奇异值向量的分布图( a fast retrieval algorithm for English texts is proposed. First of all, the English texts are mapped into frequency matrixes of order 26 and the dimensions of texts representation space are reduced through Singular Value Decomposition. Second, it fuses the features of the first singular value component and the second one, and then gets the complex feature vectors which reflect not only the statistic frequency but also the sequential structure of letters. )

说明：  用于实现对目标分配的遗传求解，源码是基于matlab的开发环境(used to achieve the goal of solving the genetic distribution, the source code is based on the Matlab development environment)

说明：  钢琴曲子中的单音的识别方法（及该方法的计算过程(Piano music in the tone of the identification method (and the method of calculation)

应用局部最优检测技术的导航信号捕获，对其进行了捕获分析，提供计算信噪比的方法(Application of local optimum detection of navigation signal capture, catch analysis was carried out, provided the SNR calculation method)

there is a notch filter (with Matlab)

find the center of gravity of speech singal.

it is a matlab guide , can be useful for mini projects and final projects.It provedto be very much useful for me ,hope u guys will make use out of it .

说明：  OFDM系统的自适应比特加载和功率分配程序，运行OFDM.M(OFDM system of adaptive bit load and power distribution, the running OFDM.M)

生成正弦波，不需要调用sin函数，利用的查表法(Generate a sine wave, you do not need to call the sin function using table look-up method)