Project

这个程序是用格雷码的基带仿真，在加高斯白噪声的情况下仿真ber和ser曲线(the purpose of this m-file is to show a baseband simulated version of QPSK with Gray coding( Rayleigh multipath and AWGN added) which may give valid results)

实现lle和pca的matlab编程，主要目的是比较lle和pca这两个高维数据降维方法的性能，各有所长。(Use matlab to realise lle and pca ，the purpose is to compare lle and pca，which reduce high dimension data to low data dimension，and each has advantage！)

ABAQUS有限元金属切削仿真模型(源自ABAQUS经典例题集三)(ABAQUS finite element simulation model of metal cutting)

说明：  类循环LDPC的生成 北京交通大学 编码技术 matlab (QC_LDPC bjtu)

LDPC的通俗易懂的讲解。包括LDPC的编码和译码等。(Of LDPC easy to understand explanations. Including LDPC encoding and decoding.)

Lag Compensator by the method of loci of roots through MATLAB rlocus

Apartment Management

Gabor transform one way to compute and analyze the time-freq analysis

采用PCA提取人脸特征,先计算M个图像的平均值脸，再求出各特征值脸。(Using PCA for face feature extraction, first calculate the average face image of M, and then find the face value of each characteristic.)

在计算机上产生一组实验数据，首先产生一段零均值白噪声数据u（n）,令功率为 ，让u(n)通过一个三阶FIR： 得到y(n). .y(n)上加三个实正弦信号f1’=0.1,f2’=0.25,f3’=0.26调整 和正弦信号幅度信噪比大致为10dB,50dB,50dB. (1) 令N=256,描绘xn波形； (2)得出真实功率谱密度 . (3) 利用此实验数据Pisarenko谐波分解法估计该实验数据的正弦频率及幅度。 (On the computer to generate a set of experimental data, first generate a zero mean white noise data u (n), so that power, let u (n) through a third-order FIR: get y (n).. Y (n) added three real sinusoidal signal f1 ' = 0.1, f2' = 0.25, f3 ' = 0.26 and sine signal amplitude adjustment signal to noise ratio is approximately 10dB, 50dB, 50dB. (1) that N = 256, depicted xn waveform (2) the true power spectral density obtained. (3) using this experimental data, Pisarenko harmonic decomposition method to estimate the experimental data of the sinusoidal frequency and amplitude.)