Kmeans-julei

采用4～8结点四边形等参元计算受内压的旋转厚壁圆筒(The use of 4 ~ 8-node isoparametric quadrilateral element calculation by the internal pressure of the rotating thick-walled cylinder)

AM RECEIVER based on super heterodyne principle virtually used in all modern radio and television receivers. The approach mainly involves the use of heterodyning or frequency mixing. The signal from the antenna is filtered sufficiently at least to reject the image frequency and possibly amplified. A local oscillator in the receiver produces a sine wave which mixes with that signal, shifting it to a specific intermediate frequency (IF), usually a lower frequency. The IF signals is itself filtered and amplified and possibly processed in additional ways. The demodulator uses the IF signals rather than the original radio frequency to recreate a copy of the original modulation (such as audio). The project is coded in MATLAB.

绘制矢量流场图。这对研究矢量的导数来说是重要的，而且富有启发性。 (plot current vector figure matlab。 it is interesting and enlightening to consider the derivative of a vector. )

GPS和INS组合导航程序，其中包括轨迹发生器、KALMAN滤波、jDSZFtw模型建立、可以对程序进行任意修改，实验报告作为示例，是BtFicOb参考例程(GPS and INS combination of navigation procedures, including the trajectory generator, KALMAN filter, jDSZFtw model to establish, you can arbitrarily modify the program, the experimental report as an example, is the BtFicOb reference)

数字信号处理书中的程序,程序序分别由FORTRAN语言和C语言编写.(Digital signal processing procedures for the book, the program sequence by the FORTRAN language and C language.)

说明：  运用龙格库塔算法求解朗之万方程，进而实现随机共振系统(The use of Runge-Kutta algorithm for solving Langevin equation, and then the realization of stochastic resonance systems)

该GUI可用于调节任何可控的非线性系统到用户指定的设定点。它使用切换李亚普诺夫控制函数。非线性系统可以是任何阶的，并且不限输入的数目。(This GUI can be used to regulate any controllable nonlinear system to a user-specified setpoint. It uses a switched Lyapunov control function. The nonlinear system can be of any order and with any number of inputs. )

产生相关相参K分布的杂波，希望对初学者有帮助(Generating relevant coherent K distributed clutter, help for beginners)

相控阵直角坐标与极坐标先的方向图,可以调节字体与线条大小(Phased array Cartesian coordinates and polar coordinates before the pattern)

主成分分析代码，用matlab实现的，请大家参阅。(Principal component analysis code, matlab implementation, please refer to the.)