ASK4

北斗卫星导航系统空间信号接口控制文件，这是正式版(BeiDou Navigation Satellite System Interface Control Document)

该代码实现的功能是对.tif格式的图片自动分页，并且可以实现数据的查找切割提取。(To achieve the functions of the code. Tif format images automatically paging, and extract data to find cutting.)

说明：  多输入多输出(Multiple-Input Multiple-Output)技术是无线移动通信领域智能天线技术的重大突破。该技术能在不增加带宽的情况下成倍地提高通信系统的容量和频谱利用率，是新一代移动通信系统必须采用的关键技术。(Multiple input multiple output (MIMO) technology is a major breakthrough of smart antenna technology in the field of wireless mobile communication. This technology can double the capacity and spectrum efficiency of the communication system without increasing the bandwidth. It is a key technology that must be adopted in the new generation of mobile communication system.)

无线通信瑞利信道仿真：使用复高斯滤波技术和近似多普勒扩展仿真瑞利衰落信道(Simulation of Rayleigh multipath fading Channel)

complete code with various mimo detectors:sphere decoder,vblast,ZF,ML

its a useful document about USB2 HOST

相位和载波估计的算法，用于通信中的同步估计。(And carrier phase estimation algorithm is used for communication synchronization estimation.)

单模光纤中相干接收QPSK信号应用了CMA算法的简单DSP示例，自带vpa仿真数据。(A simple DSP example of CMA algorithm is used to receive QPSK signals coherently in single-mode optical fibers, with VPA simulation data.)

采用verilog语言基于查找表描述8b10b编码源代码(Using Verilog language to describe 8B10B encoding source code based on look-up table)

说明：  简单实现基于各种加权分数傅里叶变换的混合载波系统(Simple implementation of hybrid carrier system based on various weighted fractional Fourier transform)