pudn_psw

通信原理的matlab仿真实验四进制的相位调制(Communication principle of matlab simulation quaternary phase modulation)

将低动态范围图像通过色调映射技术转换为高动态范围图像，对图像的亮度通道进行加强，该算法是reinhard代码进行实现的。(The low dynamic range image is transformed into high dynamic range image by hue mapping technology, and the brightness channel of the image is enhanced. The algorithm is implemented by Reinhard code.)

this code for test fft method

Matlab的M文件编写的数控插补2D直线算法仿真。具体参数可使用：X-500,Y-600，Fc-600，Fs-0，Fa-0，at--200.仿真的本意是为了验证DSP上同类插补算法的正确性(Matlab M-file to prepare the CNC interpolation algorithm for 2D simulation of a straight line. Specific parameters can be used: X-500, Y-600, Fc-600, Fs-0, Fa-0, at- 200. The simulation is intended to verify the DSP on the correctness of the same interpolation algorithm)

禁忌搜索算法解决0/1整数规划NP难问题(Tabu Search Algorithm for 0/1 integer programming problem NP hard)

功率谱估计是利用有限长的数据估计信号的功率谱，广泛应用于各个领域。功率谱估计主要分为经典谱估计与现代谱估计。常用的经典谱估计方法有周期图法，相关法，周期图的改进法，常用的现代谱估计方法有最大熵谱估计，AR模型，MA模型，ARMA模型。经典谱估计适用于长序列的信号，其主要缺陷是描述功率谱波动的数字特征方差性能差，频率分辨率低，现代谱估计适用于短序列的信号，旨在改善谱估计的分辨率，并将其应用于实际地震资料的谱分析。 (Power spectrum estimation is the use of a finite length data to estimate the power spectrum of the signal, widely used in various fields. Power spectrum estimation is divided into classic and modern spectral estimation spectral estimation. Commonly used methods of classical periodogram spectrum estimation method, the relevant law, the cycle graph Improvement Act, commonly used in modern spectral estimation methods have maximum entropy spectral estimation, AR model, MA model, ARMA model. Classical spectral estimation applied to signal a long sequence, its main drawback is the fluctuation power spectrum describing digital signature variance performance is poor, the frequency resolution is low, modern spectral estimation applied to signal short sequences designed to improve spectral estimation resolution, and The analysis applied to real seismic data spectrum.)

matlab接口，讲述matlab 与各种开发软件的各种接口。(matlab interface about a variety of interfaces of matlab with various development software.)

一个简单的TSP算法程序,使用退火算法，计算最短路径的问题，供学习(A simple TSP algorithm, the use of annealing algorithm to calculate the shortest path problem, for learning)

分数阶傅立叶变换的示例程序，个人成果，仅供参考(Fractional Fourier transform of the sample program, individual results, for reference only)

MATLAB编程实现语音信号的时域特征提取，如分帧、过零率、短时能量、语谱图等(Speech signal feature extraction)