db4xiaobojiangzao

LDPC编码的C语言实现。包括校验矩阵，生产矩阵的生成，编码，译码等。(LDPC coding in C language. Including the parity matrix, matrix production generation, encoding, decoding and the like.)

matlab图像处理的几个程序 P0301：数字图像矩阵数据的显示及其傅立叶变换(Several procedures P0301 matlab image processing: digital image data matrix display and Fourier Transform)

卡尔曼滤波源代码 含 c c++ matlab 等(Kalman filter source code with c c++ Matlab, etc.)

负责火星的一个低轨道空间站的设计。为简化结构，该空间站由一系列密闭的立方体（airtight cubical modules ACM）组成，这些ACM曾连接在一起。困扰你的一个问题是致命的病菌也许留在火星的上层大气中。因为空间站有时需要在上层大气中飞行，所以急需在ACM的各个接触面进行额外的防护，无论是边对边还是面对面，连接是密闭的，所以没有细菌能够进入。一个ACM与另外一个ACM共享的面不需要防护。如果在每个ACM每个面上都加防护，花费巨大。因此，需要知道ACM额外防护的确切面数目(Responsible for the design of a low-orbit space station on Mars. In order to simplify the structure of the space station by a series of closed cubes (airtight cubical modules ACM) composed of these ACM had together. One problem is bothering you deadly germs might stay in the upper atmosphere of Mars. Because the station is sometimes necessary to fly in the upper atmosphere, so urgently needed in all contact surfaces of the ACM additional protection, either face to face or side-to-side, the connection is closed, so no bacteria can enter. An ACM ACM shared with another surface does not need protection. If you have added protection on each side of each ACM, costly. Therefore, the need to know the exact number of additional surface protection ACM)

MATLAB上实现的OFDM+AWGN/Rayleigh+BPSK/QPSK/16QAM/64QAM，并分析EbN0 vs BER.(The MATLAB implementation OFDM+AWGN/Rayleigh+BPSK/QPSK/16QAM/64QAM, and analyze EbN0 vs BER.)

objectarx 自定义实体例子 objectarx 自定义实体例子 objectarx 自定义实体例子(objectarx acdbentity test objectarx acdbentity test objectarx acdbentity test)

一个坐标系转换的类，参考系：WGS-84椭球体参数；功能：笛卡尔坐标系、大地坐标系、站心地平坐标系（线坐标形式）、站心地平坐标系（极坐标形式）之间的互相转换。(A coordinate transformation class reference system: WGS-84 ellipsoid parameters Function: Cartesian coordinates, geodetic coordinate system, Station Local coordinate system (line coordinates), Station Local coordinate system (polar form) of conversion between each other.)

利用c语言生成符合正态分布的随机数，并在matlab程序中画出曲线图，并与理论值比较(Use c language to generate normally distributed random numbers and draw graphs in matlab program)

卡尔曼滤波，拓展的卡尔曼滤波程序matlab实现(Kalman filtering, Kalman filtering program to expand matlab achieve)

可以实现开机自动在后台运行matlab，为第一次运行matlab节省时间。(Matlab can start automatically in the background, saving time for the first run matlab.)