newtonzuisu

This is a code of the precise integration method.

说明：  传染病模型适用于网络谣言的传播过程仿真，模拟谣言信息的传播过程(contagion model;he infectious disease model is applicable to the simulation of the spread process of Internet rumor and the simulation of the spread process of rumor information)

用matlab编写的正交相移调制，已通过测试，可以运行(QPSK)

哈工大的高频地波雷达的仿真程序，可分别计算目标和海洋回波的功率谱密度，以及噪声。(HIT high-frequency ground wave radar simulation program can calculate the target and the power spectral density of sea echo, and noise.)

from s=1 to s=6 Fourier plot

小波变换在信号处理中的应用，应用db5小波对例子信号进行7层分解(Wavelet transform in signal processing applications, application db5 example wavelet decomposition of signal layer 7)

basic model of solar power

ssb的调制与解调，主要是ssb调制与解调程序代码(SSB modulation and demodulation, mainly SSB modulation and demodulation program code )

双馈感应风力发电机的模型，矢量控制，定子电压定向，完全自己搭建(Doubly fed induction wind generator model, vector control, the stator voltage oriented, to build their own completely)

针对光伏电站独立防孤岛保护装置现有的被动式孤岛检测方法,结合电网实际需求，(The ability to detect islanding condition is a mandatory requirement for inverter-based distributed generation system. In this study, an improved islanding detection scheme is developed using the variational mode decomposition (VMD) algorithm)