Daubechieswavelet

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.)

image 2d enchancement using redundant discrete wavelet algorithm

给出了fhss调制解调的程序代码，通过编程描述了fhss的信号谱、功率谱(Given fhss code modulation and demodulation, by programming the signal described fhss spectrum, power spectrum)

可用来直接运行的基于matlab的EMD执行语句，请各位多交流(dfefe )

fdtd2D simulationby matlab

this is multilayer perceptron neural network

说明：  To improve the boiler drum level control system of a power plant, the three challenging issues encountered include (1) effect of ‘‘false water level’’, (2) controller parameter mismatches due to variant working conditions and (3) signal noise caused by uncertainties of drum level. In this paper, based on analyses of the drum level signal, an adaptive derivative action is presented to monitor steam flow, and thus, the effect of ‘‘false water level’’ is weakened. The uncertainties of parameter mismatches and noise are predicted by developing a Grey predictor based algorithm (GPBA). In order to resolve the three problems and further control performance, an adaptive technique is combined with the GPBA to develop an adaptive Grey predictor based method. Finally, concrete simulations give that the proposed method has obvious superiority over conventional methods.

this document useful,to calculate radius in image

Implementation of an AVL tree using C. A data structure type.

NEWMARK动力求解，三层框架结构动力分析(newmark,solve the dynamic analysis, three layers framework structure dynamic analysis)