MPPT_charger_V2

本代码基于dwt的音频水印技术，在音频中加入高斯随机水印，达到防伪的效果。(The code is based on dwt audio watermarking technology in audio watermarking by adding Gaussian random to achieve security results.)

实现了用DCT变换进行噪声估计的功能，代码已经实现过了，可用哦。(DCT transform noise estimation function, the code has been achieved, can be used.)

Wireless Communication Engineering Modulation-Analog Modulation: AM Radio-FM Radio-Detection of FM Signal-Digital Modulation-Digital Demodulation-Coherent Versus Noncoherent-Amplitude Shift Keying (ASK)-ASK Modulation-Baseband Filtering-Non–Coherent ASK Detection -FSK Generation

说明：  分别使用周期图法以及改进的周期法实现谱估计(Using periodogram and improved method to achieve spectrum estimation cycle)

matlab 手册 参考(matlab reference manual)

一个非常有用的二阶锥优化工具箱，用于解决凸优化问题。(A very useful second-order cone optimization toolbox for solving convex optimization problems.)

说明：  this is the matlab code for AM signal

矩阵是数学中一个十分重要的概念，其应用能够十分广泛，Matlab中最基本最重要的功能就是进行矩阵运算，其所有数值功能都已矩阵为基本单元来实现，掌握Matlab中的矩阵运算是十分重要的(Matrix and its operation)

compensation of dead time effect of the inverter dead time effect causes the impact of the control performance of the INVERTER system, and pointed out that the dead time compensation, the key lies in the current phase of the acquisition, in order to overcome the practical zero of the current ambiguity of the system is proposed based on the two-phase stationary coordinate system under the feedforward dead-time compensation method. by the offset voltage of the three-phase output current cycle Fourier transform is found only compensation 1, 5, 7 harmonic components to eliminate the dead time effect. simulation and experimental results verify the correctness and feasibility of this approach.

6.角度和时延联合估计（JADE）算法MATLAB程序(JADE algorithm and delay-estimation algorithm )