Turbo_encode_decode

SMS短消息传输系统的程序代码，应用高级语言编写(SMS transfer systems)

说明：  包含三种3GPP中典型的多径信道，对于信道仿真有很大的帮助(3GPP contains three types of typical multi-path channel, the channel simulation is very useful to)

Derive the theoretical 16QAM bit error rate (BER) with Gray coded constellation mapping in AWGN

求阵列天线方向图，矩形栅格点平面阵方向图。(Array antenna pattern)

说明：  用于对基于GOLD码的串行捕获算法，可以自定义信噪比，待捕获信号参数，代码分成搜索跟踪和捕获两部分，其中搜索的步长等参数也可以自定义，代码中acquiresignal.m部分为最终捕获相位展示的主程序。(For the serial acquisition algorithm based on GOLD code, we can customize the signal-to-noise ratio and the parameters of the signal to be captured. The code is divided into search part and capture part, The parameters such as search step can also be customized. Acquiresignal.m part is the main progress to output the results of the capture of phase.)

信道比特分配需要根据信道好坏分配，可采用自适应chow算法 MATLAB编程( U81EA u9002 u5E94chow u7B97 u6CD5 MATLAB u7F16 u7A0)

11.txt为产生信道冲激响应的源码， 22.txt为各种OFDM信道估计算法的源码(11.txt for producing channel impulse response of the source, 22.txt for a variety of OFDM channel estimation algorithm for the source)

matlab语言编写的gardner的定时同步算法仿真程序(matlab language gardner Timing Synchronization Algorithm Simulation Program)

DS-EV证据理论消除了当不同证据冲突过大时，判决的错误型。自己论文里所用的代码，用在认知无线电中。函数文件。(DS-EV evidence theory eliminate the wrong judgement when supplied evidence have strong contradictory This file has been used in my thesis in CR field. hope it can help you.)

基于SIMULINK的完整OFDM系统，包括RS信道编码，交织，多种方式调制解调，插入导频，串并变换，信道估计，信道均衡等关键技术。(Based on SIMULINK complete OFDM system, including RS channel coding, interleaving, a variety of ways modulation and demodulation, insertion pilot, serial and parallel conversion, channel estimation, channel equalization and other key technologies.)