4Multidimensional-filter

数字水印提取算法，利用离散余弦变换的（dct）算法(Digital watermark extraction algorithm using discrete cosine transform (dct) algorithm)

基8-DFT计算，每8点为一蝶形运算单元，4096点计算效率较基2-DFT提高50 (Yl 8-DFT calculation, every 8 points for a butterfly operation unit, the 4096-point computation efficiency than the base 2-DFT increased by 50 )

计算分段三次多项式插值的系数,计算三次样条插值函数的系数组M(Calculating the coefficients of piecewise cubic polynomial interpolation, cubic spline interpolation function calculating the coefficients M)

本论文主要利用MATLAB实现一个简单无线通信系统的仿真，并通过误码率分析系统性能。在文本文件中输入任意字符串(空格或英文字母)作为该通信系 统的信源，经过信源编码、信道编码及信号调制进入信道，信道采用的是瑞利衰落信道，而后对接收到的信号进行解调，完成信道解码、信源解码后，将结果输出到解码文件即信宿中。 (In this thesis, a simple wireless communication system simulation using MATLAB and analyze system performance through the bit error rate. In a text file input any string (spaces or English letters) as the communication system of the letter source, source coding, channel coding and signal modulation into the channel, the channel using the Rayleigh fading channel, the signal is received and then docking demodulates the completion of the channel decoding, source decoding, the result is output to decode the file, i.e. the sink.)

说明：  Sheffield大学Matlab遗传算法工具箱,在MATLAB中设置路径后可直接调用(University of Sheffield Matlab genetic algorithm toolbox in MATLAB can be called directly after setting the path)

建立EDFA的放大模块模型，不考虑损耗，仅考虑功率放大功能( Build EDFA amplification module model, without considering the loss, only consider the power zoom function)

对变压器噪声信号的频谱分析，对比matlab中功率谱分析的各种方法，并显示频谱分析结果图(Transformer noise signal spectrum analysis, power spectrum analysis of the various methods matlab contrast and displays the results of spectral analysis chart)

RA准则下的OFDM自适应资源分配问题，涉及载波和功率的分配，是一个既含有离散决策变量，又含有连续决策变量的非线性优化模型，且含有较为复杂的非线性约束，因此适合采用智能优化算法进行求解。(RA OFDM under guideline adaptive resource allocation problem, involving carrier and power allocation is a decision with both a discrete variable, but also with continuous decision variables of nonlinear optimization models, and contains more complex nonlinear constraints, so for using intelligent optimization algorithm.)

vector control of bldc by current source inverter and voltage source inverter

matla基础编程，基本C语言，适用于m atlab初学者(matla basic programming, basic C language, suitable for m atlab beginners)