14bussystem

Abstract— We propose a simple speech compression algorithm using subband division and ADPCM (Adaptive Differential Pulse Code Modulation) algorithm. Although speech data are stored in a semiconductor memory device, its capacity and the available network capacity are limited. Therefore, it is necessary to compress the data as much as possible. The first is that the reconstructed datum must be understood correctly. Speech signal is compressed with a ratio of 1/4 using the proposed subband division and ADPCM (Adaptive Differential Pulse Code Modulation) algorithm.

smoothing images processing

此程序为统计风电出力差的概率密度，已有excel文件可以替换为自己数据。概率和为1(This procedure for wind power output difference of statistical probability density, existing excel file can be replaced with your own data. Probability is 1)

说明：  无线传感器网络中采用虚拟力算法进行节点部署时，节点优化过程的matlab算法，产生结果有直观的图形，并且可以根据不同需要进行参数更改。代码导入后可以直接运行(When virtual force algorithm is used to deploy nodes in wireless sensor networks, the matlab algorithm of node optimization process generates intuitive graphics and can change parameters according to different needs. Code can run directly after importing)

OFDM收发机matlab仿真代码，比较全面，包括编解码调制解调，信道估计等(OFDM transceiver matlab simulation code)

VC读写图像的基本程序，可以作为学习数字图像处理的基础。(VC basic procedures to read and write image, digital image processing can be used as the basis for learning.)

利用matlab编了一个pendulum仿真的例子，用来测量Gravity，希望对大家有帮助(Matlab made use of a pendulum simulation examples, used to measure Gravity, hope everyone has to help)

power_transfo.rar,功率电子领域matlab仿真文件，已经验证过，程序运行正常(power_transfo.rar,Power electronics field matlab simulation file, has already been verified, the normal operating procedures)

基于蚁群算法的三维路径规划。在三维地图上寻找最优路径！(Ant colony algorithm based three-dimensional path planning. To find the optimal path on the three-dimensional map!)

利用KNN最近邻算法，对心音信号进行分割并判断，给出第一心音、第二心音和收缩期、舒张期。(Use KNN nearest neighbor algorithm, the heart sound signal is divided and judgment is given first, second heart sound and systolic, diastolic.)