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介绍了数字通信中的QPSK调制解调的原理，通过用Matlab编写脚本程序对QPSK通信系统的发射和接收过程的具体实现进行模拟仿真，绘出信号在理想信道和加噪信道中模拟传输时的时域图，并对各模块进行了频谱分析，所得到的结果与理论基本相符，对于理解QPSK系统的性能并在系统的实际应用上作进一步的设计，提供了有效的参考依据(The introduction was done with the principle of the QPSK modulation and demodulation in digital communications, a script was written by using Matlab program to carry out a simulation of the QPSK communication system ,which contains the concrete realization of transmit and receive process. The time-domain diagram is drew separately when the signal transmits in the ideal channel and in the channel with noise, spectral analysis of each module is also done, the results obtained with theoretical results in the main, which provides an effective frame of reference for understanding the performance of QPSK systems, and the practical application in the system to make further designed.)

歌德巴赫猜想验证工具，附质数库以及质数生成器。(Goldbach conjecture verification tools, with the Treasury and the prime number prime number generator.)

Run Application =============== Windows: Doubleclick the BicAT_v2.2.jar file Linux: type ./run_linux to start the application. Solaris: type ./run_solaris to start the application. possible problems: ================== Make sure the environment variables are properly set! CLASSPATH (should be ok) LD_LIBRARY_PATH = ./lib/linux ./lib/solaris Sample Data Files ================= dataSample_1.txt - use offsets (1,1) (data are already logarithmized) dataSample_2.txt - use offsets (1,1) (Run Application =============== Windows: Doubleclick the BicAT_v2.2.jar file Linux: type ./run_linux to start the application. Solaris: type ./run_solaris to start the application. possible problems: ================== Make sure the environment variables are properly set! CLASSPATH (should be ok) LD_LIBRARY_PATH = ./lib/linux ./lib/solaris Sample Data Files ================= dataSample_1.txt- use offsets (1,1) (data are already logarithmized) dataSample_2.txt- use offsets (1,1) )

在matlab开发环境下，实现对直流电动机的仿真，研究其直接启动的特性(MATLAB development environment, the DC motor simulation, to study the characteristics of its direct start)

用impz()函数求冲激响应：用filter()函数求冲激响应 用filter()函数求余弦输入响应：用conv()函数求余弦响应：(With impz () Function Impulse Response: The filter () function used for impulse response filter () Function Cosine input response: The conv () Function Cosine response:)

C#平台调用matlab函数定义(c# platform invokes matlab functional definition)

人脸表情识别中的2DLDA方法，非特定人识别。(Face Recognition 2DLDA method, non-specific Recognition.)

matlab绘制不同概率各种占空比的矩形随机信号的功率谱密度，本人亲自编写，代码精简效率高，且结果准确（网上流传的各种绘制矩形随机信号功率谱密度的matlab代码能画对的极少见...).(matlab draw rectangle with different probabilities of various duty cycle of the power spectral density of random signals, I am personally prepared, the code streamlined efficient and accurate (spread of the Internet to draw rectangles of various random signal power spectral density matlab code to draw on the rare ...).)

说明：  利用matlab读取ers1/2sar 数据 代码简洁使用，希望能够起到抛砖引玉的作用(using matlab REDA ers sar data)

matlab编写的数字调音台，可以实现FIR、IIR高通、低通、带通、带阻操作，实时显示波形并且能缩放。有GUI界面(matlab tiaoyintai GUI)