DifferentialCodeDirectionCode

proposed filter-based algorithm uses a bank of Gabor filters to capture both local and global details in a fingerprint as a compact fixed length FingerCode. The fingerprint matching is based on the Euclidean distance between the two corresponding FingerCodes and hence is extremely fast. We are able to achieve a verification accuracy which is only marginally inferior to the best results of minutiae-based algorithms published in the open literature

说明：  folyd用来处理图论中最短路径问题。对传统的folyd算法进行了优化。(folyd to deal with the shortest path in graph theory problem. Folyd the traditional optimization algorithm.)

交流伺服系统中的死区效应分析与补偿分析了逆变器的死区效应产生的原因及其对交流伺服系统控制性能产生的影响,指出死区补偿的关键 在于电流相位的获取,为了克服实际系统中电流零点的模糊性,提出了一种基于两相静止坐标系下的前馈死 区补偿方法. 该方法通过对三相输出电流一个周期内补偿电压进行傅里叶变换,发现仅需补偿1 ,5 ,7 次谐波 分量即可消除死区效应. 仿真和试验结果验证了这种方法的正确性和可行性.(AC servo system analysis and compensation of dead time effect of the inverter dead time effect causes the impact of the control performance of the AC servo system, and pointed out that the dead time compensation, the key lies in the current phase of the acquisition, in order to overcome the practical zero of the current ambiguity of the system is proposed based on the two-phase stationary coordinate system under the feedforward dead-time compensation method. by the offset voltage of the three-phase output current cycle Fourier transform is found only compensation 1, 5, 7 harmonic components to eliminate the dead time effect. simulation and experimental results verify the correctness and feasibility of this approach.)

说明：  时间序列分析中的AR模型的matlab简单实现,一个小例子，适合刚入门者使用。。(Simple implementation of the AR model in time series analysis, a small example, suitable for just beginners)

采用神经网络技术模拟地震发生的频率与震级。(using neural network technology simulated earthquake frequency and magnitude.)

说明：  详细的BP神经网络实现代码，自己编程，从新手角度很好的入门资料。(BP neutral network based on matlab,)

级联积分梳妆滤波器的补偿滤波器，altera公司IP(altera cic compensate filter)

cross validation with neurel network methods

用MATLAB语言求取控制表,输入为偏差和偏差变化率,输出为控制信号(using MATLAB strike control table, input errors and the rate of change of error, the output control signals)

椭圆型方程五点差分格式程序，非常简单及使用(Elliptic equations five-point difference scheme program is very simple and use)