Archive

full wave rectifierDuring the period from 伪 to 蟺, the input voltage vs input current is are positive and the power flows from supply to the load. The converter is said to be operated at rectification mode .During the period from 蟺 to 蟺+伪 , the input voltage vs is negative and the input current is is positive and reverse power flows from load to the supply. The converter is said to be operated in inversion mode. Depending on the value of 伪, average output voltage can be either positive or negative and hence provides 2 quadrant operation.

说明：  基于小波包分析的声音特征提取--毕业设计程序：希望交流(Based on wavelet packet voice feature extraction- graduate design program: the hope of sharing)

说明：  ：该文首先研究了单认知用户能量检测算法的检测性能和检测灵敏度与检测时长和噪声短时间内平均功率波 动性之间的关系，得出检测性能和检测灵敏度随噪声短时间内平均功率波动性的增大而急剧下降的结论，在低信噪 比时尤为明显；针对检测性能和检测灵敏度随噪声短时间内平均功率波动性的增大而急剧下降，提出了基于多用户 协同能量检测算法。仿真表明，在低信噪比环境下，即使噪声短时间内的平均功率存在较大的波动性，只要适当地 增加协同检测的用户数，仍可获得较为准确的检测性能。(In this paper, detection performance and detection sensitivity with detection duration and noise average power fluctuation in short time is investigated firstly. Performance accuracy and detection sensitivity drop quickly with noise average power fluctuation increasing and it is worse when signal-to-noise ratio lower. Considering the characteristic, a novel new energy detection algorithm based on cooperative is presented. Simulations show that the proposed scheme improves antagonism of noise average power fluctuation in short time and gets a good detection performance as long as increasing the number of cooperative detection users.)

comsol最新版4.3a中关于射频模块中天线设计的源码(comsol latest version 4.3a source RF module antenna design)

matlab机器人工具箱利用jtraj函数和ctraj函数实现轨迹绘制(Matlab robot toolbox uses jtraj function and ctraj function to realize trajectory plotting.)

good matlab code about cfo in mimo ofdm

m序列的matlab实现，m序列的matlab实现(Implementation of m sequences)

force calculation with Matlab (fem)

自己编的遗传算法，用matlab编写的，供参考下(Own genetic algorithm, using matlab prepared for information under the)

Analiza numerica. Teorie si exemple de exercitii rezolvate in mathcad si scilab.