signal_add_noise

It is GUI file, that permit play audio in WAV format

说明：  Matlab入门级图像处理程序__运用5种不同的梯度增强法进行图像锐化(Matlab image processing procedures for the entry-level __ gradient using 5 different methods for image enhancement sharpening)

Code Matlab of Gauss Noise and correlation between signals.

参考3GPP相关标准并根据LTE技术特征和关键特性，对下行链路级进行设计，包含以下步骤：比特生成、CRC校验、码块分割、编码、速率匹配、码块级联、加扰、调制、层映射、预编码、资源映射、OFDM符号生成和天线映射。为模拟无线传输信道，还需仿真相应的信道模型。收端则是发端的严格逆过程，对接收信号进行一系列处理，得到代表原始发送的信息并判决。(References 3GPP LTE technology standards and in accordance with characteristics and key characteristics of the downlink stage design, comprising the steps of: generating bits, CRC checksum, code block segmentation, encoding, rate matching, code block concatenation, scrambling, modulation , layer mapping, precoding, resource mapping, OFDM symbol generation and antenna mapping. Analog wireless transmission channel, the need to emulate the corresponding channel model. The receiving end is the inverse of the originator of the rigorous, a series of processing the received signal, the representation of the original transmitted information and judgment.)

维纳滤波器（Wiener filter）是由数学家维纳（Rorbert Wiener）提出的一种以最小平方为最优准则的线性滤波器。在一定的约束条件下，其输出与一给定函数（通常称为期望输出）的差的平方达到最小，通过数学运算最终可变为一个托布利兹方程的求解问题。维纳滤波器又被称为最小二乘滤波器或最小平方滤波器，目前是基本的滤波方法之一。(Wiener filter (Wiener filter) is caused by a mathematician Wiener (Rorbert Wiener) proposed guidelines for the minimum square optimal linear filter. Under certain constraints, which outputs a given function (often called the desired output) reaches the minimum squared differential, the final mathematical operation may become a problem solving Equation Leeds Taub. Wiener filter is also known as the least squares filter or least squares filter, currently one of the basic filtering methods.)

利用Matlab进行卫星通信多普勒频偏仿真(Using Matlab to satellite communications doppler frequency simulation)

TODA在无线通信基站中用于室内定位的技术显示路径（包括Chan算法和Taylor级数展开算法等）(Chan algorithm and Taylor algorithm)

说明卷积编解码的工作原理，用Simulink仿真卷积编码，并用Viterbi译码的方法进行解码(Understand the convolutional codec works with Simulink simulation convolutional coding and Viterbi decoding method to decode)

精通matlab图像处理，书籍配套源码资料(Proficient in matlab image processing, books supporting source data)

Matlab program for ZF equalization