equation

Voice recognition LPC VS MFCC with K-NN

常用的图像融合评价指标，包括熵，交叉熵等等，分享一下，欢迎下载(calculate the entropy of information of fusion image)

matlab读取YUV视频数据参考程序，matlab实现(matlab read YUV video data reference program, matlab achieve)

说明：  MATLAB中继选择源代码 。 MATLAB中继选择源代码 。(Matlab relay selection source code.)

说明：  波达方向估计 频率估计 MUSIC 算法 空间角度分辨率有限(DOA)

通信Matlab多径时变仿真实现，一个主程序附加几个子函数(Time-varying multi-path communication Matlab simulation, an additional several main Functions)

混沌模型的Matlab演示程序，这是Rossler、Julia、Lorenz、Mandlebrot函数的Matlab程序(Chaos model Matlab demonstration program, which is Rossler, Julia, Lorenz, Mandlebrot function of Matlab procedures)

信号分析仪程序是有效的结合matlab语言与信号分析，形象直观的对所需分析的信号进行分析。(Signal analyzer matlab program is an effective combination of language and signal analysis, image analysis of visual signals to the required analysis.)

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)

说明：  推导雷达方程，建模计算美国的预警机雷达对大型战斗机的最大发现距离。雷达建模包括天线方向图、扫描调制（天线方向图的扫描调制）等，同时考虑不同脉冲积累数(Derive the radar equations, model and calculate the maximum discovery distance of the US early warning aircraft radar for large fighters. Radar modeling includes antenna pattern, scanning modulation (scanning modulation of antenna pattern), etc., while considering different pulse accumulation numbers)