ofdm_system

GF（Q）域上的低密度校验（LDPC）码的译码及其在深空通信中的应用.PDF(GF (Q) domain LDPC (LDPC) code decoding and its application in deep-space communication. PDF)

说明：  利用pluto设备实现fm调制与解调，simulink代码文件(Use pluto equipment to realize fm modulation and demodulation, simulink code file)

本程序为风干扰下弹道解算程序，包括matlab程序和simulink程序，非常实用(The procedures for the wind interference under ballistic solver, including the the matlab procedure and simulink program, very useful)

一个即时的客户端和服务端的聊天室........000000000(An instant client and server chat room.......00000000000)

说明：  PCM编码译码的matlab代码，设一个输入量，对其进行通信原理仿真。(The MAT code of the PCM code decoding, set an input quantity, and simulate the communication principle.)

FBMC的各个模块的代码实现，适合FBMC入门参考。(Code Implementation of Each Module of FBMC)

opnet中aodv协议的模型，大家自己看好了(opnet in aodv protocol model, we own a good)

说明：  利用通信系统中调制信号的循环平稳特性,对频谱空洞进行检测,提升频谱感知技术在低信噪比下的性能。实验结果表明:与传统能量检测方法相比,采用循环特征检测方法改善了认知无线电中频谱空洞的检测能力。(Based on the cyclostationarity of modulation signals, spectrum hole is detected, aiming at the improve- ment of the performance of spectrum sensing in low SNR situation. The results show that comparing with the tra- ditional energy detection technique, cyclostationarity-based spectrum sensing technique has greatly improved the detective ability in cognitive radio.)

TM470ARM系列开发文档，很多都不没有用过TI的arm,实际上用起来非常不错的一款芯片!(TM470ARM series of development documents, are not never used TI)

本文作的工作是利用信号仿真器仿真GPS数字中频信号，并借助这些仿真信 号完成对GPS信号的捕获和跟踪性能的研究。(This article is for the use of GPS signal simulator simulation digital IF signal, and make use of these simulation signal completion of the GPS signal acquisition and tracking performance study.)