homework4

matlab进行拓扑排序的程序，在matlab中实现了拓扑排序算法。(matlab for topological sort of the process is implemented in matlab a topological sorting algorithm.)

lte physical layer downlink sim

最小二乘法的系统辨识程序 matlab平台。 自动控制领域的比较先进的算法！(Least squares method of system identification procedures matlab platform. The field of automatic control algorithm for the more advanced!)

可以实现盲均衡算法MCMA+DD，效果较好(Blind equalization algorithm can achieve MCMA+DD, better)

three phase induction motor

matlab非常有用的工具箱，可对非平稳信号进行分析与处理。(matlab toolbox very useful, may be non-stationary signal analysis and processing.)

该matlab函数用来计算理想无耗传输线上电压电流的分布，用户需要给定传输线的特性阻抗、电长度以及出事端的反射系数。(Matlab function used to calculate the ideal power transmission lines without the distribution of voltage and current, users need to set the characteristic impedance of transmission lines, electricity, as well as the length of the reflection coefficient of trouble.)

PDESELECT 手动选择和移动操作的图形界面偏微分方程工具(PDESELECT manually select and mobile operations graphical interface tool for partial differential equations)

说明：  完整的QPSK-MSK-QAM-OFDM调制解调程序，完整的QPSK-MSK-QAM-OFDM调制解调程序(Complete QPSK-MSK-QAM-OFDM modulation and demodulation process, a complete QPSK-MSK-QAM-OFDM modulation and demodulation process)

ch3=softt(h3,thr1 clear clc I=imread( lena512.bmp ) imshow(I) I=double(I) II=I+30*randn(size(I)) figure imshow(II,[]) [a1,h1,v1,d1]=dwt2(II, sym8 ) [a2,h2,v2,d2]=dwt2(a1, sym8 ) [a3,h3,v3,d3]=dwt2(a2, sym8 ) sigma=median(abs(d1(:)))/0.6745 x=3*sigma thr1=x*2^(-1) thr2=x*2^(-0.5) thr3=x 小波图像去噪( ch3=softt(h3,thr1 clear clc I=imread( lena512.bmp ) imshow(I) I=double(I) II=I+30*randn(size(I)) figure imshow(II,[]) [a1,h1,v1,d1]=dwt2(II, sym8 ) [a2,h2,v2,d2]=dwt2(a1, sym8 ) [a3,h3,v3,d3]=dwt2(a2, sym8 ) sigma=median(abs(d1(:)))/0.6745 x=3*sigma thr1=x*2^(-1) thr2=x*2^(-0.5) thr3=x )