i_error

LTE 中MIMO的MATLAB实现，包含下行链路的流程(MATLAB in the MIMO-LTE implementation, including the process of downlink)

 产生长度为1000的标准正太分布的随机信号，画出时域波形及频谱；  采用u=255的非均匀PCM编码，每符号为8bit，画输入-输出关系图；  计算信号量化噪声比（SQNR）；  信道误码率为10-3；  解码，并画出u律反变换后的信号时域波形及频谱。 扩展要求：  采用均匀PCM、量化级数可变、信道误码率可变。 ( have a standard length of 1000 is too random signal distribution, draw time-domain waveform and frequency spectrum  u = 255 using the non-uniform PCM encoding, each symbol for 8bit, drawing input- output relationship diagram  calculated quantization noise signal than (SQNR)  channel bit error rate of 10-3  decoder, and law to draw u the signal after the inverse transform time-domain waveform and frequency spectrum. Expansion of the requirements:  uniform PCM, quantization level variable, a variable channel bit error rate.)

一本介绍空间探测相控阵雷达技术的书 内容详实，供参考(a book about radar)

根据耦合膜理论，和光纤在空间的总功率为1，计算得到不同包层模式的归一化常量(According to the coupling film theory, and the total power of optical fiber in the space of 1, calculated with different cladding modes of the normalization constants)

数字水印lsb算法。matlab实现。空域算法，替换各像素最低位，不可见性较强，适用于脆弱水印。(Lsb watermarking algorithm. matlab implementation. Airspace algorithm, replacing the lowest level of each pixel, invisible and strong, suitable for fragile watermarking.)

贝叶斯决策理论常用于模式识别中，这是最常用的一种贝叶斯决策的matlab原程序(Bayesian decision theory commonly used in the pattern recognition, This is the most commonly used a Bayesian decision-making procedures of the original Matlab)

分析蔡氏电路的相轨迹图,画出了各个变量的三维、二维相图 (Chua' s circuit analysis phase trajectory diagram depicts the various variables dimensional, two-dimensional phase diagram)

MATLAB中实现HFT算法，得到显著图(HFT algorithm implemented in MATLAB, has been significantly Figure)

本程序是使用MATLAB语言采用迎风格式解对流方程，对流方程在工程上有很广泛的应用，而迎风格式的精度比较高还包括用跳点格式解扩散方程的初值问题，所以有两个程序 (This procedure is to use the MATLAB language solution using upwind convection equation, the convection equations in engineering, there is a wide range of applications, and the accuracy of upwind scheme also includes a relatively high point format with jump-diffusion equation solution of the initial value problem, so there are two procedures)

this file consists of the turbo code in the AWGN channel. the simulation will nearly take 20 min to simulate but it will produce an excellent output with reaching the Shannon s limit exactly at 0.5db.