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产生一个雷克子波组的时域和频谱特征，用以演示雷克子波的时域和频域特征。(Generated the Ricker wavelets of time domain and spectral characteristics, to demonstrate the Ricker wavelets time domain and frequency domain characteristics.)

说明：  基于Matlab的仿真,虚拟信号发生器,实现各种信号(sin cos ... )的发生(Matlab based simulation, virtual signal generator based on Matlab simulation, virtual signal generator, achieve various signals (sin...The occurrence of))

可以用于求解两个信号的互信息、信息熵，并在此基础上求解广义相关系数。(Mutual information, information entropy can be used to solve the two signals, and solving the generalized correlation coefficient on this basis.)

最优化算法中，单纯形表法+两步法的matlab实现，通过两个实例调用两个函数实现(Optimization algorithm, matlab tableau method+ two-step method of implementation, call the two functions by means of two examples of the realization)

MATLAB黄金分割法求最小值，在区间中点的函数值作为返回值。(Golden Section Method MATLAB minimum, midpoint in the range of the function value as the return value.)

最小二乘窄带干扰消除。有用信号是一个点状目标，产生窄带干扰采样，产生高斯白噪声，设计一个M=100个系数的单步(D=1)线性预测器，再用得到的线性预测器来消除图中被干扰的信号x(n)中的噪声。(Least Squares narrowband interference cancellation. The useful signal is a target point, narrow-band interference is sampled Gaussian white noise, the design of a M = 100 coefficients in a single step (D = 1) linear predictor, then the obtained linear prediction filter to eliminate the interference graph the signal x (n) the noise.)

QPSK Modulation Demodulation, BER vs SNR plot

QAM is quadrature amplitue modulation...in wireless communication...this code is used to control the exceeding power of some mobile users..

说明：  这是关于粒子群优化算法优化回声状态网络的材料，特别适合初学者，可以帮助你们快速学习群体智能算法优化神经网络(This material is about particle swarm optimization algorithm optimization esN, especially suitable for beginners, can help you quickly learn swarm intelligence algorithm optimization neural network)

步进频率连续波，一维距离像，速度补偿，包括说明，波形图，源代码(Step frequency continuous wave, as one-dimensional distance, speed compensation, including a description, waveform, source code)