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卡尔曼滤波的MATLAB程序，经试验程序，算法简单，结果有效。(Kalman filtering of the MATLAB program, the test procedure, the algorithm is simple, and effective.)

机载雷达空时二维处理的3个方向图，分别是a为一般值或二分之派或0 (3 airborne radar space-time two-dimensional processing pattern, respectively, a is the general value or two per school or 0)

完整的循环谱计算代码，可以直接运用，稍加改动就可以变成其他的循环谱形式，欢迎下载。(Complete cycle spectrum calculation code can be directly applied, a little change can become another form of cyclic spectrum, welcome to download.)

说明：  曲线拟合的程序，包括点数据。刚接触matlab,请大家多多指教。(Curve fitting procedures, including data.刚接触matlab, please everyone exhibitions.)

说明：  对带噪图象进行处理，削去不必要的东西，抗干扰，(right image processing, cut unnecessary things, interference,)

交错网格---非均匀介质二维声波方程(一阶压力--速度)、2阶时间差分、2阶空间差分精度(Staggered grid- heterogeneous medium two-dimensional acoustic wave equation (first-order pressure- speed), 2 order time difference, space 2 order difference accuracy)

此源代码应用于OFDM仿真，一个OFDM符号128个有效符号，插入128个虚拟子载波(OFDM emulation)

运用三层BP网络结构（输入层、隐含层、输出层）实现算法，进行十进制与二进制的转换。(The use of three-tier structure of BP network (input layer, hidden layer, output layer) implementation algorithm, and binary to decimal conversion.)

介绍了平均电流控制型 PFC Boost 变换器的结构， 分析了其工作原理。 分别采用 Power System 工具箱和考虑电感电流断续工作状态的 C-MEX 文件 S 函数建立了主电路模型，对平均电 流控制型 PFC Boost 变换器进行了仿真。仿真结果表明，与 Power System 工具箱模型相比，基于 C-MEX 文件的 S 函数仿真模型能够准确仿真电流断续工作状态，仿真速度快。设计了电路样机进 行了实验研究，仿真结果与实验结果一致，证明了该方法的正确性。利用该方法可以高效地仿真 研究系统结构和参数变化时性能变化情况，得到的平均电流控制型 PFC Boost 变换器的混沌分岔 图，为更好地理解和设计这种变换器提供了有利的工具。(The structure of average current controlled power factor correction (PFC) Boost converter is introduced, and its working principle is analyzed. The PFC Boost converter is simulated using the model established with Power System toolbox and the C-MEX file S-function model respectively. Simulation results show that the C-MEX file S-function model can simulate the all state of the converter including discontinuous conduction mode with high speed. Experimental results show the correctness of the simulation results and the proposed method. The method is suitable for simulation the performance changing with the variation of system structure or parameters. The bifurcation diagram is derived for PFC Boost converter using this method, which is very useful for better understanding and better design of the converter.)

一种主成分分析的matlab源代码！外国人写的，不错！(A principal component analysis of the matlab source code! Writing of foreigners, it is true!)