matlab_net

Color Image Enhancement Techniques: A Critical Review Abstract Image enhancement is one of the key issues in high quality pictures such as digital camera and HDTV. Since Image clarity is very easily affected by lighting, weather, or equipment that has been used to capture the image. These conditions lead to image may suffer from loss of information. As a result, many techniques have developed known as image Enhancement techniques to recover the information in an image. This paper presents a literature review on some of the image Enhancement techniques for color image enhancement like, Contrast Stretching, Histogram Equalization and its improvement versions, Homomorphic Filtering, Retinex, and Wavelet Multiscale Transform. Comparison of all the techniques concludes the better approach for its future research

UPLINK ADN DOWNLINK FOR GSM 1800 AND 900

OFDM simulation, including channel, transmitter, receiver, and simulink

包括turbo码编译码程序，译码算法包括sova及max-log-map算法，并有完整链路验证其性能。(including turbo coding- decoding procedures, SOVA including decoding algorithm and max-log-map algorithm, and link integrity test its performance.)

信道模型包括模拟多径造成的指数衰减模型、模拟噪声干扰的 AWGN模型、以及频率偏差，主要 Matlab 实现(Channel model including the simulation of multipath caused by the exponential decay model to simulate the noise of the AWGN model, and the frequency deviation, the main Matlab Implementation)

使用matlab实现对word的写操作，以写学生成绩报告为例(Use matlab to achieve word write operation to write the report as an example of student achievement)

天线子阵级加权算法，归一化方法仿真程序，有效抑制旁瓣特性(The antenna subarray level weighting algorithm, the simulation program, effective normalization method to suppress sidelobe characteristics)

说明：  Scilab软件与MATLAB功能相似，而且它是一个开源项目。功能强大，使用方法不简单。本教材是学习此软件较详细的资料。(Scilab software with features similar to MATLAB, and it is an open source project. Powerful, simple to use. The materials to learn the software more detailed information.)

可以拟合两点之间的偏差，只需要给出函数相应的数据(The deviation between two points can be fitted, only the corresponding data are given functions)

说明：  利用数值计算 求解浅水方程，利用了Lax-wendroff有限差分，并附有输出图像展示(The shallow water equation is solved by numerical calculation, and the Lax-Wendroff finite difference method is used with output image display.)