energy_detection

遗传算法工具箱，可以根据其中文件提示进行修改，还可以自己编写文件嵌入(Genetic algorithm toolbox, based on documents which prompted changes can also be embedded in their own documentation)

sample FFT Analyser using matlab. using cos and sin function.

设计一个数字滤波器，在频率低于 的范围内，低通幅度特性为常数，并且不低于0.75dB。在频率 和 之间，阻带衰减至少为20dB。 (1)试求满足这些条件的最低阶Butterworth滤波器。(Design a digital filter, in the range of frequencies below the low-pass amplitude characteristic is constant, and not less than 0.75dB. Between the frequency and stop-band attenuation of at least 20dB. (1) Determine the lowest-order Butterworth filter to meet these conditions.)

Matlab有限元结构动力学分析与工程应用-徐斌 源代码(Matlab finite element structural dynamics analysis and engineering applications - Xu Binyuan code)

这个程序是用来求含有alpha稳定噪声的粒子运行轨道，粒子运行满足一个含有噪声的方程,利用龙哥库塔方法求解方程(this program is used to solve the trace )

变频调速是改变电动机定子电源的频率，从而改变其同步转速的调速方法。变频调速系统主要设备是提供变频电源的变频器，变频器可分成交流-直流-交流变频器和交流-交流变频器两大类，目前国内大都使用交-直-交变频器。(Variable frequency speed regulation is the frequency of changing the stator power supply of the motor, thus changing the speed regulation method of the synchronous speed.Variable frequency speed regulation system is the main equipment to provide frequency conversion power of inverter, the inverter can be divided into ac - dc - ac frequency converter and ac - ac frequency converter two kinds big, cross - straight - to pay inverter are mostly used in China at present.)

matlab的工具箱集合，希望对初学者有帮助(Matlab toolbox set, and I hope to help beginners)

说明：  一个数如果恰好等于它的因子之和，这个数就称为“完数”。例如6=1＋2＋3.编程 　　　 找出1000以内的所有完数。 (If a number is just equal to the sum of its factors, this number is called &quot End of a few.&quot For example 6 = 1+2+3. Programmatically find all finished within a number of 1000.)

说明：  发动机喷管设计以及性能优化计算，由isight实现，bat批处理(the calculation for out)

2D photonic crystal Band Structure