matlab(3)

matlab programs for rate N convolutional encoder. These codes are very useful for making software defined radio in the lab.

QAM信号调制解调的仿真以及解调误码率的比较。(QAM signal modulation and demodulation of the demodulation error rate simulation and comparison.)

运用距离多普勒算法解决点目标成像问题，并且具有运动补偿功能(RD algorithm)

分形几何中一些经典图形的Matlab画法 [文档在线提供](Fractal geometry of some classic graphical Matlab painting [document online])

Objective of the program is to solve for the steady state voltage distribution of the inside region of a microstrip and then using that obtain the electric field distribution in the region using quiver plot. The microstrip comprises of a region given by 0<x<7 units and 0<y<2 units in the coordinate system bounded by four capacitor plates on all the sides of the region. The region comprises of a material with relative permittivity 1 from 0<y<1 units and a material of relative permittivity 9.6 from 1<y<2 units. The microstrip extends indefinitely in the z-direction. The sides of the region are given Dirichlet boundary condition. A horizontal microstrip line is placed at the center of the region. The microstrip is excited with a voltage of 1 Volt and all surrounding plates are maintained at 0 Volts.

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

QAM解映射程序，在接受端，对发送端经过调制的信号解调，恢复出原始的信息。(QAM demapping process at the receiving end, the transmission side demodulates the modulated signal to recover the original information.)

一个在matlab环境下实现FFT的实践和功率谱分析的程序(this is a program about fft and psd analysis)

need source code for matlab

说明：  用matlab模拟圆孔衍射图像，入射光为平面波，衍射距离可以任意调节(Matlab simulation using circular aperture diffraction images, the incident light for the plane wave, diffraction can adjust the distance)