ExtractionofimageofthevirtualplantandVisualization

generate the parity check matrix

pe to snr for bpsk when we use rectangular modulation on bw=0.025,0.05,0.1

四元数实现的三维空间的表达形式，具有表达式简单，运算精度高，占有存储空间小等优点。(quaternion achieve the three-dimensional space of expression, the expression is simple, high precision computing, possession of small storage space advantages.)

说明：  基于奇异值分解的信号降噪算法，自己编写的程序，程序的理论见压缩文件中的参考文档。(The signal denoising algorithm based on singular value decomposition(SVD), the program written by itself, the theory of the program can be found in the reference document in the compressed file.)

说明：  matlab 非线性回归算法 是对现有数据系列进行参数拟合的程序(Matlab nonlinear regression algorithm to existing data series parameter fitting procedure)

code for integrating a double integral problem numerically using the numerical Gauss-Quadrature technique

2012年数学建模美赛程序清单列表（所有程序）(2012 Mathematical Modeling US-race program list)

说明：  tsoa是画椭圆模型的，利用多个椭圆进行定位，程序代码(Painted oval model, positioning)

Jakes模型参数，移动衰落信道，设计Suzuki模型的主要部分(Jakes parameters)

说明：  歌曲中人声消除的原理； wav文件的格式； IIR和FIR数字滤波器的设计方法； C语言或Matlab的编程知识。 (Elimination of the principle of human acoustic songs wav file format IIR and FIR digital filter design C or Matlab programming language knowledge.)