Lab3-SE

Matlab中优化多个矩阵相乘以提高计算效率的源代码。(Optimize a number of Matlab matrices to improve the computational efficiency of the source code.)

用Viterbi algorithm筛选经过含白噪声的信息。equalizer为采用Viterbi algorithm，有效减少ISI(码间串扰)，detector为简单的检验器。对比两者的误码率。信息数量为10001bit(using Viterbi algorithm method selecting the data. compared with simple detector. data length are 10001bits. Viterbi algorithm can reduce the affect of ISI （intersymbol interference）)

In this paper we present the usefulness of the algorithm DCT (Discrete cosine Transform) blocks applied level image compression JPEG (Joint Photographic Experts Goup). It has been shown that this algorithm is the most efficient in the case of compression because it has very good properties for compaction energy related values. As a basic principle we eliminate high frequencies and keep the low and medium without visibly affecting image. DCT in JPEG compression algorithm is encountered in practical applications such as face detection, skin color, facial recognition, iris, fingerprints

说明：  忽略损耗的电网经济调度，三个发电机组，可以计算出力和成本。(In the economic dispatch of power network with neglect of loss, three generators can calculate the power and cost.)

All codes in Matlab.

matlab代码，低回声图像的边缘提取处理(matlab code, low-echo images of the edge extraction processing)

这个程序可用来画R(D)函数，学习信息论的一般要做这个。(This procedure can be used to draw R (D) function, learning the general information theory to do this.)

说明：  介绍MATLAB使用的相关知识和技巧，对入门者比较有用。(MATLAB introduce the use of relevant knowledge and skills useful for beginners comparison.)

说明：  OFDM系统中基于LS 和 MMSE 的信道估计(OFDM Systems Based on LS and MMSE channel estimation)

matlab GUI串口通信，实时采集数据，曲线显示，接收和发送数据(matlab GUI serial communication, real-time data collection, curve display, receiving and sending data)