fenwei

最小二乘法实现m个方程的最高n次多项式的拟合。(least-squares procedure)

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)

nmikhore man nmidonam in chiye tamom

说明：  利用LMS算法更新滤波器参数，实现自适应信号处理(LMS algorithm is used to update filter parameters to realize adaptive signal processing)

calculates the size parameter (x) and relative refractive index

说明：  PQ分解法中的XB算法，比BX算法更快，用于高压电网潮流计算(powerflow computation)

PSD estimation using ESPIRIT

用MatLab环境进行OFDM仿真代码，具有注释详细，非常适合初学者。(source code for OFDM ,suitable for the beginner)

matlab中用于UI6008数据采集卡的数据采集以及输出的程序 使用方便快捷 模拟仿真实现PI控制(for UI6008 data acquisition card for data acquisition and output in matlab program easy to use simulation to achieve the PI control)

MATLAB simulink模块下的PID计算代码及模型仿真(PID computing code and model simulation under MATLAB Simulink module)