calculateSNR

对通信中应用广泛的Kalman滤波进行matlab编程，并且得到的滤波效果比较理想，恢复的信号误码率可以达到很低。(Widely used for communications in the Kalman filter for matlab programming, and get the filter effect is ideal to restore the signal can reach very low bit error rate.)

说明：  MATLAB第一节，介绍MATLAB的起源，以及最初级的东西。(MATLAB first section describes the origin of MATLAB, and the most elementary things.)

实现最小二乘滤波器，应用于雷达等信号中，包含实现功能的子程序和主程序(Achieve least-squares filters, used in radar and other signals, including the realization of the function and main subroutine)

从初值出发，先计算y对时间t的导数，得到y的变化速度；求出x对t的导数，得到x随时间的变化速度。然后时间前进一小步h=0.002，同时x和y也都发生一个小的变化，即在原来数值基础上加上时间步长h和变化速度的乘积。如果x到达1或者-1，强制让y发生变化。这个过程不断迭代，得到结果。 (completed chart)

DQPSK仿真程序，包含调制解调、性能分析(DQPSK simulation program, including modulation and demodulation, performance analysis)

高 斯 迭 代(Gauss iteration)

2009 Online blind image deconvolution for astronomy 源代码，多通道反卷积处理图像，远算速度比较快(2009 Online blind image deconvolution for astronomy source code, multi-channel deconvolution process images far faster calculation)

说明：  利用前推回代法计算配电网潮流，可以算得电压，功率以及电流(Use of the former back-generation distribution power flow method can be considered as voltage, power and current)

itis a peceptron file example to show how to train and test data with this network.

是用于模式识别中的一种数据采样方法，此方法是把数据按一定的比例分为训练数据和测试数据。(for pattern recognition of a data sampling methods, This method is data by a certain percentage into training data and test data.)