huffmanqi

用镜像矩阵求出矩阵的QR分解（正交三角分解），并求解线性方程组，该方法不必选主元，但其计算过程非常稳定。也可用于求矩阵的广义逆和求解线性最小二乘问题。子过程QRDCMP用镜像矩阵求m*n矩阵A的QR分解，A=Q^TR,其中Q是m*m正交矩阵，R为m*n上三角矩阵；子过程QRBKSB用矩阵的QR分解求解线性方程组Ax=b，其中A为n阶非奇异方阵。(Matrix obtained with the mirror matrix QR decomposition (orthogonal triangular decomposition), and solving linear equations, the method does not have to choose the main element, but its calculation process is very stable. Can also be used to find the generalized inverse matrix and solving linear least squares problems. Sub-process of the mirror matrix QRDCMP m* n matrix A QR decomposition, A = Q ^ TR, wherein Q is a m* m orthogonal matrix, R is m* n upper triangular matrix subprocess QRBKSB a QR decomposition to solve the matrix linear equations Ax = b, where A is non-singular square matrix of order n.)

自适应多速率编码器标准代码，解码端。可将wav文件编码生成amr格式的文件。这种格式的文件可根据信道质量，自动调节编码速率，故称之为自适应。(adaptive multi-rate encoder standard code, the decoder. Wav documents can be generated amr coding format documents. This format of the document is available according to the channel quality, automatic adjustment coding rate, but it is called adaptive.)

输入骰子个数和投掷的次数，程序将计算出一次投掷的点数和的概率分布(Enter the number of dice and throwing the number, the program will calculate the time throwing the probability distribution of points and)

this program is a sample program for connecting MATLAB with Xplane9 using UDP comunication.

- Stone column play important role in infrastructure, improving soft soil. The behaviour of stone column, however, remains far well understood

2ddp dynamic mesh for fluent udf

说明：  matlab宝典的很多程序和实例，这本书很有用，是系统学习matlab的好资料，欢迎大家下载.(Collection of the many procedures and matlab examples, this book is useful, is the systematic study of matlab good information, are welcome to download.)

： 正交频分复用( O F D M) 是第四代移动通信的核心技术。 该文首先简要介绍了O F D M基本原理， 重点研究了理想同步情 况下， 保护时隙( c P )和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对O F D M系统性能的影响。 在给出O F DM系 统模型的基础上， 用 MAT L A B语言实现了整个系统的计算机仿真并给出参考设计程序。 最后给出在不同的信道条件下， 保 护时隙、 信道估计方法对 OF DM系统误码率影响的比较曲线， 得出了较理想的结论。 关键词： 正交频分复用； 仿真； 循环前缀； 信道估计(good)

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四轴飞行器程序，含陀螺仪姿态角显示及其控制，稳定易懂，运用PID算法，卡尔曼滤波(Four axis aircraft program, display containing gyro attitude and attitude control, stable and easy to understand, the use of PID algorithm, Calman filter)