OFDM

将压缩感知应用于基于训练序列的信道估计中，代码展示了压缩和估计过程。(Will be used in compressed sensing training sequence based channel estimation, the code shows the compression and estimation process.)

航空航天通信技术一般采用模拟通信的频率调制和数字通信的移相键控调制方法。这有利于充分应用信道带宽和能源。频率调制是在一定程度上改变载波或副载波的频率来传输信息的调制方法。移相键控调制是利用载波或副载波的相位跳变来传输信息的调制方法。移相键控又分二相移相键控、四相移相键控和多相移相键控，其中以四相移相键控和八相移相键控调制方法的效率较高(Aerospace communications technology commonly used analog communication of frequency modulation and the digital communication phase shift keying modulation method. This is helpful for making full use of channel bandwidth and energy. Frequency modulation is changed to some extent carrier or subcarrier frequency to transmit information modulation method. Phase shift keying modulation is the use of carrier or subcarrier phase jump to transmit information modulation method. Phase shift keying and binary phase shift keying, four phase shift keying and multiple phase shift keying, of which four phase shift keying and eight phase shift keying modulation method of high efficiency )

一个BICM系统的通信过程的方针，包括transmission,constellation,demodulation(a simulation of the communication processing of BICM system, include transmission, constellation, demodulation)

两发一收和一发一收空时分组码误码率仿真对比图(Two rounds of a close and Pitch-empty, block codes BER simulation comparison chart)

说明：  可以同时模拟多个GB28181摄像头。 用于GB28181平台的压力测试(Multiple gb28181 cameras can be simulated at the same time. Pressure test for gb28181 platform)

这是一个去极值滑动窗口数字滤波器算法，在ADC采样的时候可以用这个算法去除脉冲干扰。(This is digital filter algorithm which removes extreme value，and it works just like a sliding window, we can use this algorithm to remove glitches in ADC sampling。)

分析仿真了LTE-Advanced系统部署Pico后的小区间干扰协调技术.本文针对在LTE—Advanced系统中部署Pico后恶劣的干扰条件进行了详细的分析，并重点讨论了三种可以有效兼容R8／R9终端的增强型ICIC技术。(Analysis and simulation of LTE-Advanced systems deploy Pico Inter-cell interference coordination techniques for LTE-Advanced systems deploy Pico bad interference conditions, carried out a detailed analysis, and focused on the three can be effectively compatible with R8/R9enhanced terminal ICIC technology.)

说明：  包含对gpib通讯的一些操作，类中包括对安捷伦数字万用表的基本操作，对固纬程控电源的基本操作和程控变阻箱的基本操作(Contains some operations for GPIB Communications,Class includes the basic operation of Agilent digital multimeter, weft fixing programmable power supply and programmable resistance box.)

提供了用MATLAB进行数字图像处理、压缩感知、多种信号重建算法、多种熵编码的MATLAB代码。(The MATLAB codes for digital image processing, compression sensing, multiple signal reconstruction algorithms and multiple entropy coding are provided.)

document for OFDM system