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Generate 4QAM sistem

THis code removes the object shadow

实现两种信道环境下的ZF均衡和MMSE均衡，并比较两者的误码率曲线(ZF and MMSE equalization to achieve a balanced two-channel environment, and compare the BER curves)

通过给定天线阵列的参数，计算出切比雪夫馈电电流分布，并计算出方向图(By giving the parameters of the antenna array, the current distribution of the Chebyshev feed current is calculated and the direction map is calculated.)

说明：  舰船辐射噪声频谱分析，用于模拟舰船辐射噪声信号及分析(boat noise processing)

Lagrange插值多项式求线性方程组,数值分析考试用(Lagrange polynomial interpolation of linear equations, numerical analysis examinations)

说明：  旅行商问题，起点与终点为同一点，求最短路径，(MTSPF_GA Fixed Multiple Traveling Salesmen Problem (M-TSP) Genetic Algorithm (GA))

MATLAB code files for digital signal processing and digital filtering book. Contains the code for the examples in every chapter of the book.

利用matlab编写的牛顿插值法进行插值计算(Newton interpolation interpolation using Matlab prepared )

function Px = music(x,p,M) MUSIC Frequency estimation using the MUSIC algorithm. ----- USAGE Px=music(x,p,M) The input sequence x is assumed to consist of p complex exponentials in white noise. The frequencies of the complex exponentials and the variance of the white noise are estimated using the MUSIC algorithm. x : input sequence p : number of complex exponentials to find M : number of noise eigenvectors to use The frequency estimates are found from the peaks of the pseudospectrum Px.