Alamouti_schemes

we can obtain the symbol error rate of space time block code using the modulation technique of Quadrature-Phase shift keying

说明：  异步电机的精确控制和速度辨识是交流传动系统中重要问题。在该仿真系统中，电机转速采用易于检测的电机定子电压和电流得到转速MRAS辨识算法来估算。由于速度辨识算法中电压模型的纯积分环节会引起的误差积累和漂移问题，采用改进积分型转子磁链估算模型来解决。(The precise control and the speed identification of AC motor are the very important issues on AC drive system.In this system, induction motor is controlled by the direct torque control, stator flux is estimated by u-n model observer that is effective in the full range of speed, motor speed is estimated by MRAS speed identification algorithm that is depended on the voltage and the current of motor stator easily detected. The modified integral rotor flux estimation model is used to solve the problem that the normal model can be affected by the error accumulation and drift of integral calculation in the voltage model of conventional speed identification algorithm. )

IEEE 14 bus system data function file.

optimization nelder powell

带有权值的最小二乘拟合，详细，方便易懂，希望可以帮助到大家(Least squares fitting, with the right to the value of detailed, easy to understand, I hope to help to everyone)

说明：  利用耦合模理论，仿真折射率调制对长周期光纤光栅的透射谱的影响，画出其透射谱线图。(Using the coupled mode theory, simulation refractive index modulation for long-period fiber grating transmission spectra of the impact of transmission lines to draw the map)

时域信号去噪后去噪效果评价指标，包括信噪比、均方误差等(After the time-domain signal denoising denoising uation, including SNR, MSE, etc.)

说明：  如何在图像中加入一个冲击信号，求冲击信号的自相关 并求与高斯信号的互相关性(how to insert noise,and how to konw the correlation with gaosi noise)

uplink Channel of LTE

以单相桥式分支模块组成的整流电路仿真模型(Single phase bridge rectifier modules branch circuit simulation model)