kanggongji

butterworth bandpass filter design

离散点曲线 进行3次B样条曲线拟合 包括节点参数化过程 基函数计算过程 控制点反求过程 到最后拟合曲线的显示(The discrete point curve is fitted with 3 B spline curves, including the node parameterization process, the basis function calculation process, the control point inversion process, and the final fitting curve display)

说明：  此仿真实现了单位功率因数的有源逆变，也可功率因数可调。(The simulation of active power factor of the unit, also can be inverter power factor can be adjusted. )

实现（2，1，7）卷积编码以及相应的viterbi译码(achieve (2,1,7) convolutional code and the corresponding Viterbi decoding)

It is helpful in classifying the maturity stage of cotton.

遗传算法程序包，包括用GA直接训练BP网络的权重算法，用GA先求BP网络的权重，再用纯BP直接训练BP的混合GA－BP算法，以及纯BP算法(Genetic Algorithm package, including direct training GA weight of BP network algorithm, first used GA for the weight of BP network, and then trained BP net BP mixed directly GA-BP algorithm, as well as the pure BP algorithm)

说明：  经典无网格教程的随书算法的例程，属于第三章例程(Classical meshless algorithm tutorial routines with books, belonging to the third chapter routines)

AM、DSB 调制及解调 用matlab产生一个频率为1Hz，功率为1的余弦信源m(t)，设载波频率ωc =10 Hz， m0 = 2 ,试画出： 􀁺 AM 及DSB 调制信号的时域波形； 􀁺 采用相干解调后的 AM 及DSB 信号波形； 􀁺 AM 及DSB 已调信号的功率谱； 􀁺 调整载波频率及 m0，观察分的AM 的过调与DSB 反相点现象。 􀁺 在接收端带通后加上窄带高斯噪声，单边功率谱密度0 n = 0.1，重新解调。 (AM, DSB modulation and demodulation Matlab produce a frequency for 1 Hz, power of 1 cosine source m (t), set the carrier frequency ω c = 10 Hz, M0 = 2, try drawing out: )

matlab 刚刚接触 在做小波方便 传一个小波去噪程序 很简单的(a simple wavelets denoise function)

matlab实用教程 内容详细 可以作为手册使用(matlab tutorial and detailed can be used as a cookbook)