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关于QPSK调制方法的一个小的仿真，使用matlab做的(QPSK modulation method on a small simulation, using matlab to do)

说明：  《matlab 7辅助信号处理技术与应用》下载资料，是学习信号处理的理想的资料。( "matlab 7 Cueing signals Processing Technology And Application" download the material, is studies the signal processing the ideal material. )

matlab自适应滤波器实现。性能比较：估计值与真实值之差 (matlab adaptive filter implementation. Performance comparison: estimated value and the true value of the difference)

fortran简单程序集，常用程序，适合新手学习。(fortran simple assembly, common procedures, suitable for novice to learn.)

分别用改进的Euler方法和四阶Runge-Kutta方法求解。 (Were improved Euler method and fourth-order Runge-Kutta method.)

THIS CODE REMOVES "SALT AND PEPPER NOISE" BY AVERAGING.MAY HELP BEGINNERS TO UNDERSTAND THE COLOR PICTURE AND REMOVING THE NOISE IN GREY IMAGE OUTPUT OF GIVEN COLOR IMAGE.

通过matlab代码画出的各种概率密度函数图形仅供参考(By matlab code to draw the beta probability density function graph for reference only)

extracting region of interest with region growing

matlab数值求解数学非线性方程方法组文档(matlab numerical solution of nonlinear mathematical equation method set of documents)

产生任意相关系数的多路高斯分布的噪声，用于模拟信号处理的噪声环境。(Generate multiple channals of noise with arbitrary cross-correlation coefficient )