选择类问题优化算法

I. Maximum directivity (dimensionless and in dB) c II. Radiation resistance (Rr) c III. Input resistance (Rin) c IV. Reactance relative to current maximum (Xm) c V. Input reactance (Xin) c VI. Normalized current distribution c VII. Directivity pattern (in dB) c VIII. Normalized far-field amplitude pattern

说明：  电弧仿真,各种参数，可以方便大家进行学习，和修改参数(Arc simulation, various parameters, can facilitate everyone to learn, and modify parameters)

C++控制台俄罗斯方块带源代码，界面美观，Visual C++ 6.0编译。(Cpp Console Tetris)

PIC-C程序一实例,对学单片机很有用处,快快来下载. (PIC-C procedure examples, very useful for school single-chip, as soon as possible to download.)

gis地图 --- --文字1-gis writing a map

这是美国科罗多矿院的Zoeppritz方程的精确反射系数的Matlab代码，同时包含有AKI-RICHARDS，Shuey方程等的反射系数，美国人写的相当详细，非常好用。欢迎下载。(This is the exact reflection coefficient Zoeppritz equation of the United States Colorado Institute Matlab code, including AKI-RICHARDS, Shuey reflection coefficient equation)

(7，4)汉明码的编码程序，实现4位信息位后加三位监督位，组成7位码组-(7,4) hamming code encoding process, realize information-bit 4 after three supervision, and composed of seven yards Group

说明：  本文针对基于高斯分布的非线性滤波问题，开发并分析了实时和精确滤波器。我们提出了高斯滤波器的系统公式，并开发了高效和精确的数值积分。我们还讨论了混合高斯滤波器，其中条件概率密度由高斯分布之和近似。数值试验表明，新的滤波器在不增加额外费用的情况下显著地改善了扩展卡尔曼滤波器，并且新的高斯和滤波器具有接近最优的性能(In this paper we develop and analyze real-time and ac- curate filters for nonlinear filtering problems based on the Gaussian distributions. We present the systematic formulation of Gaussian filters and develop efficient and accurate numerical integration of the proposed filter. We also discuss the mixed Gaussian filters in which the conditional probability density is approximated by the sum of Gaussian distributions. Our numerical testings demonstrate that new filters significantly improve the extended Kalman filter with no additional cost and the new Gaussian sum filter .has a nearly optimal perfor- mance.)

简单的电子邮件发送程序，貌似有点问题，希望可以喝大家共享。-it is verf easy!

合成孔径雷达成像算法与实现（附光盘数据和仿真代码）(SAR imaging algorithm and implementation (with CD data and simulation code))