PUDN

模式识别实验程序 回归中的偏差方差问题(Experimental procedure in pattern recognition deviation variance regression problem)

用于将MNIST数据文件转换成bmp图像和txt文件的matlab程序，程序中有详细注释说明，简单易用。已经测试过，正确无误。(Matlab code for translating MNIST data set files to bmp pictures and txt files. It has been proved to be correct through test.)

Butterworth hih/low and band pass filters are applied to image

说明：  matlab based segmentation

Numerical solution of wave equation using three methods, 1)Upwind 2)Leap-Frog 3)Maccormack.

空时格码编码器(STTC encoder)

控制数学问题的MATLAB求解，包括：微积分与积分变换问题求解，线性代数、积分方程和差分方程求解(Solution for Control Mathematics Problem )

地震资料 数据处理 分频去噪 模块 主要压制随机噪音 异常振幅 野值 大值 方法特点：1 针对性强，主要去除随机噪音；2 随机噪音识别能力强，达到了较高的去噪水平；3 具有自适应性，能根据不同位置的不同特点统计识别噪音；4 振幅保真，对有效信号的保护性好；5 操作者可根据经验选择参数组合灵活去噪，达到较好的结果。 应用对比：为了展示本模块的去噪效果，所选取的对比对象是某知名成熟商业软件的分频去噪模块，其去噪效果在当前诸多成熟软件模块中是佼佼者，在地震资料处理界具有很好的口碑。 通过对比，说明本模块：1 针对性强，主要去除随机噪音和异常振幅等。2 随机噪音识别能力强，达到了较高的去噪水平。3 具有自适应性，能根据不同位置的不同特点统计识别噪音。4 振幅保真，对有效信号的保护性好。5 操作者可根据经验选择参数组合灵活去噪，达到较好的结果。(Frequency-dependent noise attenuation seismic data, processing module, is mainly to suppress random noise, denoising abnormal/large amplitude values Method of characteristics: 1 targeted, mainly to remove random noise 2 random noise and strong ability to identify , reach a higher level of de-noising 3 is adaptive , able to identify the noise statistics according to the different characteristics of different positions 4 amplitude fidelity , the effective protection of the signal is good 5 denoising operator flexibility to select the combination of parameters according to the experience , to achieve better results . Application contrast: To demonstrate the effect of the de-noising module , the selected object is a well-known comparative commercial software divide mature noising module de-noising effect is the current leader in many mature software module in seismic data processing industry has a good reputation. By contrast, the description of the module : a targeted, mai)

水下无人航行器（AUV）simulink仿真工具箱,安装后即可用里面给出的各种AUV模型进行仿真，是挪威科技大学的学生做的，很不错。(Unmanned underwater vehicle (AUV) simulink simulation toolbox, which can be used after installation of various AUV model given simulation, the Norwegian University of Technology, students do very well.)

this file include matlb code for face detection