harr

谱分析；功率谱 通过matlab对功率谱生成进行编码，从而简单快捷的生成功率谱图。(power respectrum)

underwatter communication

function [ H ,S ] = HS( f ) UNTITLED2 Summary of this function goes here Detailed explanation goes here syms x1 x2 f1=diff(f,x1) f2=diff(f,x2) S= [f1 f2] H = [diff(f1,x1) diff(f1,x2) diff(f2,x1) diff(f2,x2)] end s0=subs(S,findsym(S),[0 0])(function [H, S] = HS (f) UNTITLED2 Summary of this function goes here Detailed explanation goes here syms x1 x2 f1 = diff (f, x1) f2 = diff (f, x2) S = [f1 f2] H = [diff (f1, x1) diff (f1, x2) diff (f2, x1) diff (f2, x2)] end s0 = subs (S, findsym (S), [0 0 ]))

说明：  MATLAB环境下的矩阵运算，简单易懂的MATLAB语句，简化而好用的MATLAB句子运算(MATLAB environment, the matrix operation, easy to understand the MATLAB statement, simplified and easy to use MATLAB computing sentence)

The best book I have been seeing for Sound and using digital signal processing

matlab中fsolve语句数值效果较好，采用的解法是将方程组转化为最小二乘问题，调用指令lsqnonlin求解，所以，它参数的选取和优化指令的用法是一致的(matlab numerical results in fsolve statement better solution is to use the equations into a least squares problem, call the command lsqnonlin solution, therefore, it is parameter selection and optimization of instruction is consistent with the usage of)

Instructions to Authors December 2010

总体经验模态分解（EEMD）的程序，适合初学者学习。(Overall empirical mode decomposition (EEMD) procedures, suitable for beginners to learn.)

MATLAB里的simulink的dspbuilder设计的图像中值滤波，可直接运行，并可通过matlab转化到quartus中并下载到FPGA运行(MATLAB simulink in the design of dspbuilder image median filtering, can be run directly, and transformed by matlab to quartus and downloaded to the FPGA run)

建立包含直驱型风力发电机、单级式光伏发电系统和储能蓄电池的风能与光伏混合微电网模型。混合微电网在并网运行时，通过储能蓄电池平滑风能和光伏电源的输出功率波动，维持公共连接点电压。A wind power and photovoltaic hybrid microgrid model including direct drive wind turbine, single-stage photovoltaic power generation system and energy storage battery is established. When the hybrid microgrid is connected to the grid, it can maintain the voltage of the common connection point by fluctuating the output power of the energy storage battery smoothing wind energy and the photovoltaic power.(A wind power and photovoltaic hybrid microgrid model including direct drive wind turbine, single-stage photovoltaic power generation system and energy storage battery is established. When the hybrid microgrid is connected to the grid, it can maintain the voltage of the common connection point by fluctuating the output power of the energy storage battery smoothing wind energy and the photovoltaic power.)