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瑞利分布＋杂波雷达信号MATLAB仿真程序，希望对有做雷达信号得朋友有帮助(Rayleigh distribution miscellaneous radar signal MATLAB simulation program, and they hope to have a friend make a radar signal has to help)

finite difference method solving one dimensional advection-diffusion equation

In a normal communication channel, it is often desirable to concentrate the information in as narrow a region of the frequency spectrum as possible in order to conserve available bandwidth and to reduce power. The basic spread spectrum technique, on the other hand, is designed to encode a stream of information by spreading the encoded data across as much of the frequency spectrum as possible. This allows the signal reception, even if there is interference on some frequencies. While there are many variations on spread spectrum communication, we concentrated on Direct Sequence Spread Spectrum encoding (DSSS). The DSSS method spreads the signal by multiplying it by a chip, a maximal length pseudorandom sequence modulated at a known rate. Since the host signals are in discrete-time format, we can use the sampling rate as the chip rate for coding.

MATLAB在通信系统中的应用及示例，包括通信工具箱函数、编码、信道模型、调制等。(MATLAB in communication system applications and examples, including communications toolbox function, coding, channel models, modulation and so on.)

优化设计，鲍威尔法，无约束条件求解最优解，二维(Optimal design)

说明：  Localization of coherent signals without source number knowledge in unknown spatially correlated Gaussia

此程序为在matlab中计算水声简正波程序的代码，(Card matlab calculation of underwater acoustic normal modes program code)

本代码为《精通matlab7》的配套代码，方便大家直接运行使用。(The code for the " proficient matlab7" supporting code, easy to use you to run directly.)

matlab批量存储txt文件，可在matlab中直接运行(program for saving txt files in matlab)

本人自编的一个快速作图，功能强大的matlab GUI 界面程序。其主要功能如下： 1.导入工作空间变量(X,Y)：导入工作空间变量，并提取类型为数组的变量。 2.绘图(plot)：多种模式，包括1对1，1对多，多对多。如x1—y1 x1—y1,y2；x1,x2—y1,y2。 3.快速标准化图形(NormalFig)：快速设置图形格式，以达到论文图片要求。字体大小，线型粗细等 4.可以手动设置格式 5.可以设置为笛卡尔坐标，也可以设置为对数坐标 6.右键执行命令:“Execute”旁的可编辑框，输入命令，右键执行。右键执行的好处是：可以保存变量到工作空间，实现非连续执行命令。 7.符号函数简易绘图(Ezplot)：快速绘制函数图，并可设置区间，区间设置用“ ”隔开。 8.锁定(lock)：锁定，即图形绘制在GUI坐标轴内；解锁，新建Fig，绘制图形，方便输出 9.保持和编辑(Hold,EditPlot)，编译后exe,亦可对图形进行拾取设置 另还有对变量转置等功能。 整个程序中，如操作失误，每处错误都有提示。 (It is a matlab program,which can help you plot beautiful figures easily,or make you learn some programming skills. In a word,it is a useful program and tool.)