Codingmatlab

基于libsvm的支撑向量机的回归问题。基本应用和结果(Libsvm based support vector machine (SVM) regression problems.Basic and application results)

针对永磁同步电机常规直接转矩控制系统涉及到的问题,例如磁链的准确观测、定子电阻的变化、电压矢量开关表的改进以及滞环控制器的改进等等,本文都作了详细的分析,并提出了改进方案。为了提高系统的性能,本文将空间矢量调制的方法引入了常规直接转矩控制中,并在此基础上,对永磁同步电机无速度传感器问题作了详细的分析,总结了国内外的研究热点,提出了采用转子磁链矢量为基础的永磁同步电机直接转矩控制速度估计方法。仿真结果表明,该方案具有很好的动、静态特性。(Firstly, the paper analyzes the principle of direct torque control of permanent magnet synchronous motor and elaborates the impact of space voltage vector of the stator flux and the electromagnetic torque.Secondly, the paper introduces direct torque control of permanent magnet synchronous motor SVPWM technology.Under the same hardware conditions,the system can obtain More continuous voltage space vector by taking advantage of SVPWM.The simulation results show the program not only keeps the direct torque control fast dynamic response, but also reduce the motor torque ripple.)

ofdm papr程序，适用于slm，pts等(ofdm papr procedures applicable to slm, pts, etc.)

说明：  太赫兹和中红外频率下，石墨烯表面电导率的公式(Formula for surface conductivity of graphene at terahertz and mid-infrared frequencies)

绍了数字通信中的Q PSK 调制解调的原理和过程, 通过用M atlab 对这一过程的编程, 分析信号在 理想信道和加噪信道中模拟传输时的时域图, 并用蒙特卡罗方法, 讨论模拟过程中的误码率, 所得结果与理论 结果基本一致. 关键词:Q PSK 系统仿真 蒙特卡罗分析 M atlab(Shaozeng digital communications Q PSK modulation and demodulation principle and process, M atlab through the process of programming, analysis of signal processing in the ideal channel noise channel analog transmission of time-domain diagram, and Monte Carlo methods discussed in the process of simulation BER results are basically consistent with the theoretical results. Key words: Q PSK System Simulation Monte Carlo Analysis of M atlab)

this source code is a simple peer to peer program that enables user to contact each other directly

利用BP人工神经网络对语音特征信号进行分类(classification of Speech signal )

说明：  雷达信号处理 chirpZ变化代码 初学者可以参考一下(Radar signal processing chirpZ change code for beginners to refer to)

very good document for Inverted pendulum matlab

带有约束条件的PSO算法，内包含有多种实例函数(A PSO algorithm with constraint conditions, which contains a variety of instance functions)