NullSpaceApp

This is a simulation matlab for simulating the process of BCJR decoder that decodes input data s from channel.

模式识别的一种算法，主要是设计和计算相应的支持向量机支撑的一种算法分析。(An algorithm for pattern recognition, mainly design and the corresponding support vector machine algorithm supported calculated.)

matlab 拍照摄像，可以实现matlab拍照监控摄像，大家可以学学。(matlab photo camera)

简单的 knn 文本算法 ，用于中文文本分类，比较方便的方法！(Simple text knn algorithm for Chinese text classification, more convenient way!)

如上图所示，定向耦合器由完全相同的直波导与弯曲波导构成，波 导芯为宽高比相同（均为 a） 的正方形， 其工作波长，波导材料 对 TE 模式的折射率，及圆弧形弯曲波导的半径 r 等参数如图所 示，若波长为 1550 nm， 归一化光功率为 1 的光波从直波导输 入，请选择适当的满足单模工作的波导宽度 a， 然后给出从圆形弯 曲波导输出的归一化光功率 P4与两波导边缘的间距 d(Directional coupler by the same straight and curved waveguides constituting the waveguide, waves Conducting core is the same aspect ratio (are a) square, its operating wavelength, the waveguide material The refractive index of the TE mode and the arc-shaped curved waveguide of radius r and other parameters as shown Shown, if the wavelength of 1550 nm, normalized optical power a light straight waveguide input In, the appropriate work to meet the single-mode waveguide width a, and then is given a circular bend Curved waveguide output normalized optical power P4 and two edges of the waveguide spacing d)

MATLAB program for APT image decoding. Use of the envelope detection. Processing of a WAV file, creating image

UPF滤波是结合UKF和粒子滤波算法，利用UKF对非线性系统处理能力得到UPF算法。(UPF filter is a combination of UKF and particle filter algorithm, using UKF nonlinear system processing capacity UPF algorithm.)

该程序是一个较简短的程序，主要读取磁共振fid信号，显示波形(The program is a relatively short procedure, the main reading magnetic resonance fid signal waveform display)

gilbert strang book matlab code Computational Science and Engineering

pulse compression in RADAR for back scattering and Araay implementation