SA

说明：  可以求出系统频率响应的一个小程序，只要修改一下系统参数，吧参数改成你自己的就可以。(You can find the system frequency response of a small program, as long as the system parameters change it, bar parameters can be changed to your own.)

对某个三维集合体进行matlab重积分计算(Double integral calculation )

matlab有限元结构动力分析与工程应用 第三章源程序(matlab finite element structural dynamic analysis and engineering application source code chapter)

北大医学部（医学统计学）的课件，里面重点讲解实验数据统计，方差分析，相关与偏相关等方法，这是不确定性实验数据统计必修方法，使用matlab的同学有福了。(PUHSC (Medical Statistics) courseware, which highlight the experimental statistics, analysis of variance, correlation and partial correlation method, which is the uncertainty of experimental data statistics compulsory methods, the use of matlab student blessed.)

通过MATLAB工具箱运用离散傅里叶变换对正弦信号和放波信号进行傅里叶分析(Through the use of Discrete Fourier Transform MATLAB toolbox on the sine wave signal and let the Fourier analysis of signals)

正弦脉宽调制， 程序给定调制波频率，载波频率，负载功率因数，输出相电压波形，相电流波形。(Sine pwm,the frequecy of modulated wave and carried wave is given in program, also the factor of load.The output is wave of phase voltage and phase current.)

该模型实现了一个通用的OFDM TX和RX，这是不依赖于任何特定的行业标准。该模型的目标是开发和研究不断（不是“突发”）载波同步和定时跟踪方案。该技术纳入然后可以扩展和修改，以标准的具体通讯套件。该模型采用了“收购”技术，它利用了循环前缀相关属性，以赶在试图完成罚款跟踪算法一帧的边界粗略的估计。该模型实现了一个16点64循环前缀的OFDM载波波形。在OFDM符号有16个飞行员，3后卫音（0，带边幅），并使用45 QAM的剩余数据流4。 这包括最新型的衰落信道，误码率计算，并改善控制回路动态。(This model implements a generic OFDM TX and RX, which is not tied to any particular industry standard. The objective of this model is to develop and explore a continuous (not “bursty”) carrier and timing tracking synchronization scheme. The techniques incorporated can then be extended and modified to suite specific communications standards. The model uses an “acquisition” technique that exploits the correlation properties of the cyclic prefix to get a rough estimate of the frame boundary before attempting to accomplish the fine tracking algorithms. The model implements a 64 carrier OFDM waveform with a 16 point cyclic prefix. The OFDM symbol has 16 pilots, 3 guard tones (0 amplitude at band edge) and uses 4 QAM for the 45 remaining data streams. This latest model includes a fading channel, BER computation, and improved control loop dynamics. )

matlab code mobile communications

The book gives the instruction of using Multisim 9 for educators

这是个智能天线系统，被设计成主波束面向用户，背对干扰用户(This is a smart antenna system, the main beam is designed for users to turn their backs on the user interference)