writefz585

（1） 熟悉连续信号经理想采样前后的频谱变化关系，加深对时域采样定理的理解． （2） 熟悉时域离散系统的时域特性 （3） 利用卷积方法观察分析系统的时域特性． （4） 掌握序列傅立叶变换的计算机实现方法，利用序列的傅立叶变换对连续信号，离散信号及系统响应进行频域分析． ((1) familiar with the continuous signal to the manager before and after the sampling of the spectrum changes relations and deepen the time-domain sampling theorem understanding. (2) familiar with the time-domain system discrete time-domain (3) using deconvolution method of analysis in time domain characteristics. (4) master sequence Fourier Transform computer, using the Fourier transform sequence of continuous signals, Discrete signal system response and frequency domain analysis.)

基于Matlab模拟的ask，psk以及fsk调制方式(Matlab-based simulation ask, psk and fsk modulation)

模拟2个独立窄带信号分别以20°，60°的方向入射到均匀线阵上，信号间互不相关，与噪声相互独立，噪声为理想高斯白噪声，阵元间距为入射信号波长的1／2，信噪比为20dB，阵元数为10，采样快拍次数为200。(Simulate two independent narrowband signals in the direction of 20 °, 60 ° of the incident on the ULA, among signal unrelated, independent noise, the noise is ideal Gaussian white noise, the array element spacing of the incident signal wavelength of 1/2, the signal to noise ratio is 20dB, the array element number 10, the sampling frequency of 200 snapshots.)

说明：  用于单神经元控制的pid整定，还加带其他两种普通PID整定的对比试验(PID tuning for single neuron control)

to recognition the letters and numbers

一个指纹识别的MATLAB程序！！！推荐～(a fingerprint identification MATLAB! ! ! Suggest ~ )

说明：  非线性有限元程序，二维， 非常好用的啊！！！！！！！！！！！！！！！！！！！！！！！！！！！！(nonliear fem)

静电场边值问题的解法浅析,用分离变量法解决静电场边界问题的基本思路(Electrostatic Boundary Value Analysis)

Maximum Likelihood Local search scheme: Newton-Raphson algorithm

说明：  将ELCentro波的加速度时程转换成速度、位移时程(Converting the acceleration time history of ELCentro wave into velocity and displacement time history)