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信号与系统基础知识包括连续信号与模型、离散信号与模型；常用信号变换包括Z变换、Chirp Z变换、FFT变换、DCT变换和Hilbert变换等；离散系统结构包括IIR、FIR和Lattice结构；IIR滤波器设计包括模拟和数字低通、高通、带通与带阻滤波器设计，以及基于冲激响应不变法和双线性Z变换法的IlR滤波器设计等；FIR滤波器设计包括基于窗函数、频率抽样法和切比雪大逼近法的FIR滤波器设计；平稳信号分析包括经典功率谱估计、基于参数模型的功率谱估计和基于非参数模型的功率谱估计；非平稳信号分析包括STFT变换、Gabor展开、Wigner-Ville分布与Choi-Williams分布；非高斯信号分析包括基于非参数法的双谱估计、基于参数模型的双谱估计，以及双谱估计的应用；信号处理的GUI实现包括滤波器设计与分析的FDATool工具和滤波器设计与信号分析的SPTool工具。(signals and systems based on knowledge, including continuous signal with the model, discrete signal and model; Common signals include transform Z transform, chirp Z-transform, FFT transform. DCT and Hilbert transform; Discrete system architecture including IIR, FIR and Lattice structure; IIR filter design, including analog and digital low-pass, high-pass, band-pass and band stop filter design, Based on the impulse response of the same law and bilinear Z transform the IlR filter design; FIR filter design including on the basis of the window function, frequency sampling and snow all over the big approximation of FIR filter design; stationary signal analysis include classical power spectrum estimation, Based on the model parameters of the power spectrum estimation and non- parametric model b)

海浪的数学模型，含漂移力和干扰力，是贾老师书上的数学模型。(Mathematical model of the waves, including drift force and interference force, is a mathematical model Jia teacher book.)

AR model for DOA estimation

说明：  本程序是求解一厚壁圆筒的matlab程序，采用平面等参单元计算(This program is a thick-walled cylinder matlab solving procedure for the calculation of plane isoparametric element)

一个lms算法，包含输入输出以及错误率等。全免费下载，有需要的可以拿去。(A lms algorithms, including input and output, and error rates. Full free download, need to 拿去.)

三结点三角形单元有限元计算程序 matlab编程(Three-node triangular element finite element program matlab programming)

First use EEMD to decompose the original singal to get IMFS,then use FFT to analyse the each IMF,combine EEMD with FFT to get clearer analytic results.

三个分段相连的信号的傅里叶变换和时频分析；Chirp 信号的傅里叶变换和时频分析；信号的子带分解(Linked to three sub-signals Fourier transform and time-frequency analysis Chirp signal Fourier transform and time-frequency analysis signal subband decomposition)

说明：  用matlab解决TSP旅行商问题,针对30个城市最短路径进行优化(Using matlab to solve the traveling salesman problem TSP for 30 cities to optimize the shortest path)

beamforming in antenna