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CODE IN MATLAB TO PERFORM RIGID TRANSFORM IN 3D

完美的OFDM仿真，可以应用于多种环境下的数据链路，并含有多种结果仿真(OFDM perfect simulation, can be applied to a variety of data link environment and contains a variety of simulation results)

说明：  寻找三次样条多项式需要求解大量的线性方程。实际上，给定N个断点，就要寻找N-1个三次多项式，每个多项式有4个未知系数。这样，所求解的方程组包含有4*(N-1)个未知数。把每个三次多项式列成特殊形式，并且运用各种约束，通过求解N个具有N个未知系数的方程组，就能确定三次多项式。 (find cubic spline solving polynomial need a lot of linear equations. In fact, given N breakpoints, it is necessary to look for N-1 cubic polynomial, each with four polynomial coefficients unknown. Thus, by solving the equations contain 4* (N-1) unknown. Each cubic polynomial Timing special form, and use of various constraints, by solving N with N unknown coefficient equations, we can identify three polynomial.)

利用改进奇异值去除噪声，效果不错，带实例，可以参考(The improved singular value remove the noise, the effect is good, with examples, can reference)

该源代码是模式识别课程作业。通过K平均算法实现聚类的目的。效果比较好。另外本人还设计了等高线法，用于聚类，思想较好，效果一般，但是值得参考。(This code is a Pattern Recognition homework. It use Kmeans to clustering, and get a good result. It s good for a reference.)

说明：  在无线传感器网络中，节点间的重复博弈，最后得到最优解，使系统性能最佳状态(In wireless sensor networks, repeated games between nodes, and finally get the optimal solution, so that system performance status)

MATLAB/Simulink仿真模型。 改进的变步长上山法的最大功率跟踪仿真模型。 实用可行。(Based on matlab/simulink. MPPT. Practical and feasible.)

该文件为rake接收机的一个完整发送，接受过程，并附有原理推导过程(The document for the rake receiver to send a complete and accept the process, together with the principle of derivation)

heed分簇算法，基于剩余能量，地理位置合理选择簇头，使能量均衡，防止出现能量空洞，延长网络生命周期(heed clustering algorithm, a reasonable choice based on the remaining energy cluster head, geographical location, the energy balance, to prevent the energy hole and prolong the network life cycle )

MATHEMATICAL MODELS OF DISTRIBUTION CHANNELS 畸变信道数学模型。一本介绍畸变信道数学模型的外文书，对通信信道感兴趣的书友，可以看看。很好的一本英文书，一起分享。 (MATHEMATICAL MODELS OF DISTRIBUTION CHANNELS。A book about communication channel ,someone who is interest in DISTRIBUTION CHANNEL must have a look. It is really a good book,share with all of you. )