code-for-homework

pid控制程序，基于matlab环境开发，开自行修改(matlab)

弹性力学中的一些基本概念，应用matlab对其进行求解，方便弹性力学初学者的学习与借鉴(Some of the basic concept of elasticity, the application of matlab them to solve the convenient elasticity beginners and learn from)

小波包能量巨程序（已做归一化处理，用于对振动信号提取特征）(Wavelet packet energy giant program (normalization process has been done for the vibration signal feature extraction))

基于混沌理论的一种安全压缩感知方案设计201312-1091(The Application of Compressed Sensing in Image Compression)

信道编码采用卷积码，解码使用Viterbi解码。调制给出QPSK、16QAM 两种调制方式，并在AWGN和瑞利信道两种信道模型下传输。(Channel coding using convolutional codes, decoding using the Viterbi decoder. Given modulation QPSK, 16QAM modulation in two ways, and in the AWGN and Rayleigh channel model of two-channel transmission.)

this program simulates 1D electromagnetic Maxwell equations with absorbing boundary condition to prevent reflection from the boundaries of the problem space. this is by using finite difference time domain method FDTD

说明：  Emd分解，通过峭度和相关系数选择IMF，进行信号重构，小波分解，小波包分解。(Emd decomposition, selecting IMF by kurtosis and correlation coefficient, signal reconstruction, wavelet decomposition, wavelet packet decomposition.)

一个基于飞机纵向方程设计的LQR控制律SIMULINK模型结构(An equation based aircraft longitudinal control law designed SIMULINK model structure LQR)

对粒子滤波实现的很好，很实用的matlab实现程序，望广大学习者放心使用。(Particle filter to achieve good, very practical realization of the matlab program, hope the majority of learners at ease.)

An program for transmission line is given in this file.For Short the length is 80 km,for medium 80 to 250 km and for long transmission length is given by 250 km above.