algorithm-of-shortest-path

利用扩展卡尔曼进行状态估计 状态向量四维 测量向量二维 误差为高斯白噪声(The use of extended Kalman state vector for state estimation of two-dimensional four-dimensional vector measurement error is Gaussian white noise)

新型改进光双二进制传输的编解码方案 提出了改进型光双二进制信号在高速率(≥10Gbit／s)传输时预编码的一种新方案。通过分析编解码过 程，证明该信号传输时不易受码间干扰影响，能用二进制强度调制一直接检测的系统接收信号。仿真产生了该信 号的2种码型。结果表明，采用色散补偿技术能使MD NRZ和MD．RZ信号在长距离传输后克服眼图失真，MD-RZ 信号比MD．NRZ信号在传输后有更低的误码率。(Abstract：Anovel pre-coding schemeformodified optical duobinary signalswasproposed．It couldbe applied to缸ansmit high speed data mte signals(≥ 10Gbit／s)．Through analyzing the process of coding and decoding，It Was demonstrated thatmodified opticalduobinary sign alshave capabilityin reductionofpulse—to-pulseinteraction ， and couldbe di． recaymeasured through aconventionalbinaryintensitymodulationdirectdetection(IM—DD)receiver．Twomodified optical duobinary sign als’formats were simulated to generate．Sim ulation results show that MD．NRZ and MD-RZ signals’ formats Can avoid the eye diagrams’distortion for long—distance transmission，if the dispersion Can be compe nsated in each amplifier span．Moreover,theMD-RZ signalhaslowerBER than theIVID-NRZ signal afterlong-distance comm．unication．)

白噪声下的线谱估计算法仿真，包括周期图法、AR模型法、MUSIC算法等。(Line under the white noise spectrum estimation algorithm simulation, including the cycle diagram method, AR model method, MUSIC algorithm.)

说明：  butterfly calculation is realized over matlab

a som application, for those who are new in neural network and matlab!

用matlab实现的最小二乘拟合圆，能输出半斤，圆心坐标，拟合误差等等(a program for cirfit)

SFA算法的matlab实现，不是使用工具箱的那种，纯编程，望支持(The algorithm of SFA, not use the tool box function, use laugage of matlab.)

模型预测控制，单输入单输出系统，多输入多输出系统，三阶系统带约束的模型预测控制(MPC，Model Predictive Control，MIMO，SISO)

各种类型的时频分析，包括科恩，加布，短时傅里叶变换(Various types of time-frequency analysis, including Cohen, Gabe, short time Fourier transform)

有限元前处理的一个小程序，包括网格的划分等，比较有用(A finite element pre-processing program, including the division of the grid, the more useful)