circonvt

(1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因； (2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理； (3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请回答：证明自己用计算机产生的经典谱是正确的可能方法。 ((1) in certain wireless channel, the Doppler frequency shift will be caused by wireless channel output signal aliasing. Please describe the resulting aliasing of a variety of reasons (2) wireless channel Doppler spectrum there is a classical spectrum (classic spectrum), please explain such a spectral shape of the mechanism (3) Please use Simulink tools for writing code ( S-Function mode), resulting in a single Path Rayleigh channel, the Doppler spectrum for the classical spectrum, including mobile rate of 120km/h. And please answer: prove that they used computer-generated classical spectrum is correct possible ways.)

在Viusal Basic6.0中，通过DDE方式，实现与MATLAB的通讯。无论在VB操作数据库应用、控件的使用、MATLAB的图形操作方面，对初学者来说都是难得的典范。(In Viusal Basic6.0 through DDE way communication with MATLAB. Operation in VB database application, the use of controls, MATLAB graphics operation, for beginners is a rare example.)

此函数为matlab函数，可以用来绘制出任意函数的包迹线。(Finds the envelope of an arbitrary function)

这是有关超解像的程序，使用的是POCS算法，网上有关他的程序很多都缺子程序，这个比较全。(This is the ultra-Jie Xiang procedures, using the POCS algorithm, the Internet many of the procedures of his short subprogram, the more full.)

用sobol方法计算基于方差的客观不确定性指标的程序。(Sobol method used to calculate the variance of uncertainty based on objective indicators of the program.)

针对光纤耦合数据文件在邦加球上处理显示，是偏振态变化更加清晰可见。(According to data files in the state, fiber coupled with ball processing and display, polarization more change is clearly visible.)

This is a Multi Objective BAT Algorithm.

在求解函数优化问题时，为了提升人工蜂群算法局部搜索能力，提出了一种新颖的混沌蜂群算法。(in order to improve the ability of artificial bee colony algotithm at exploitation, a novel chaos-artificial bee colony algorithm is proposed for continuous function optimization problems. )

ecg signal compression using fft dst

code source of generalized predictive control