GSM_simulation

matlab codes given for various applications.

曲线拟合功能 实现曲线不同方式的拟合，为初学matlab做曲线拟合(Curve fitting function curve of different fitting )

单向功率因数校正（PFC）电路仿真模型。电路结构为不控整流+Boost。(Single power factor correction (PFC) circuit simulation model. The circuit structure of the diode rectifier+ Boost.)

dsp 例程，做一些界面，显示出来，并对该算法进行仿真分析(dsp routines, do some interface, display, and simulation analysis of the algorithm)

通过在matlab平台上运行这个程序，可以画出一个生动的玫瑰花，赶快把你的女朋友或者心仪的女生叫到电脑旁边给她一个惊喜吧。(this source code can help you show your love to somegirl by giving a wonderful rose plot.)

矢量控制系统中的PI调节器，此为转矩调节器(PI regulator vector control system, this is the torque regulator)

说明：  通过迭代的方法来计算物质的光学性质，通过最小二乘法来设置收敛的条件，当结果小于收敛条件时，输出结果(Calculate liquid refractive index, using the iteration method, design the smallest error by the least squares method, to terminate the iteration convergence )

步进频，线性调频信号的雷达回波数据处理，单脉冲雷达(Stepped frequency signal processing)

A band pass filter designed

蟻拓演算法應用在電力系統的無效功率潮流分析(Application of ant algorithms Billiton invalid in power system power flow analysis)