Main_Chens

This script will attempt to find the band gaps in a phononic crystal by carrying out a Plane Wave Expansion of the various quantities It is for an acoustic wave equation with pressure instead of the displacement as prescribed in App. Phys. Lett. 70 3218 There are 3 programs, one for short, one for elastic long and the other one is for acoustic long(This script will attempt to find the band gaps in a phononic crystal by carrying out a Plane Wave Expansion of the various quantities It is for an acoustic wave equation with pressure instead of the displacement as prescribed in App. Phys. Lett. 70 3218 There are 3 programs, one for short, one for elastic long and the other one is for acoustic long)

说明：  最小均方算法的仿真， LMS算法仿真在移动通信的应用(Least mean square algorithm simulation, LMS algorithm for the application of simulation in mobile communications)

说明：  LPI和LPID的主要目的是能够在比截获接收机对雷达进行探测与干扰的距离更远的距离上来探测目标,本工具箱是在MATLAB下的LPI工具箱(LPI and LPID' s main purpose is to intercept receiver than the radar detection and jamming on the distance farther up exploration goals, the toolkit is under the LPI in the MATLAB Toolbox)

通过一个实例，学习libsvm在matlab中的使用方法，适合初学者。(One instance, learning to use libsvm in matlab, suitable for beginners.)

基于MATLAB的平面度评定方法，介绍了计算方法(Based on MATLAB flatness evaluation method, calculation method introduced)

用实验方法测试RLC串联谐振电路的幅频特性曲线。当正弦交流信号的频率f改变时，电路的感抗、容抗随之而变.取电路电压U0作为响应，当输入电压Ui幅值维持不变时，在不同信号频率的激励下，测出U0之值，用LabVIEW程序完成频谱分析和滤波，变换等信号处理，即可测出RLC串联电路的谐振频率，(Amplitude-frequency characteristics experimentally tested RLC series resonant circuit curve. When changing the frequency f of the sinusoidal AC signal, the circuit inductance, capacitance change with Take circuit voltage U0 as a response when the amplitude of the input voltage Ui unchanged, signals at different excitation frequencies, the measured value U0, the process is complete spectrum analysis using LabVIEW and filtering, transform signal processing, can be measured RLC series circuit resonant frequency,)

主要是将模糊聚类分选算法应用于雷达信号分选中，已达到更好的分选效果(The fuzzy clustering algorithm is applied to radar signal sorting, which has achieved a better sorting effect.)

混沌吸引子的MATLAB主程序，经验证可以使用。(Chaotic attractor MATLAB main program, you can use the experience card.)

The file can be used for plate mesh in finite element alaysis.The code may be further modified for other shapes.

This is a small program to create indexs for two binary trees and combine them to a new 003 * index tree and output the new tree,the second tree only has the left child tree then 004 * if the first tree has no left child tree,insert the second tree into the first tree as 005 * its left child and if the first tree has the left child tree,then insert the first tree 006 * into the second tree as its left child. (This is a small program to create indexs for two binary trees and combine them to a new 003* index tree and output the new tree, the second tree only has the left child tree then 004* if the first tree has no left child tree, insert the second tree into the first tree as 005* its left child and if the first tree has the left child tree, then insert the first tree 006* into the second tree as its left child.)