brachist

基于EKF的机器人SLAM演示程序, 对于搞机器人定位及地图构建的朋友会有一定帮助, 这个版本用的人比较多(EKF-based SLAM demo of the robot, the robot carry out positioning and mapping will have a certain friend to help, this version used by many people)

MATLAB中提供了汉明码的编解码、4FSK调制解调函数和不同通信信道模型函数，本程序直接调用进行编程。借助于MATLAB可大大地拓宽研究分析的视野提高研究设计的效率,具有重要的推广和应用价值。 (MATLAB provides the hamming codec 4FSK modem function and different communication channel model function, the program calls directly programming. Help of MATLAB can greatly broaden the horizons of research and analysis to improve the efficiency of the study design, with promotion and application value.)

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

说明：  为作业最终的仿真结果与分析 PL_free.m：free space path loss model PL_logdist.m: log-distance path loss model PL_lognorm.m: log-normal shadowing path loss model plot_PL_general.m: plot the figures itum.m: ITU M.1225 vehicular-B(120km/hr) channel model AWGN.m: create AWGN channel object(The final for the job simulation results and analysis PL_free.m: free space path loss model PL_logdist.m: log-distance path loss model PL_lognorm.m: log-normal shadowing path loss model plot_PL_general.m: plot the figures itum.m: ITU M.1225 vehicular-B (120km/hr) channel model AWGN.m: create AWGN channel object)

说明：  MATLAB主成分分析，改变变量后可以用于因子变量分析，生物学上的(MATLAB component analysis, change the variables can be used to factor multivariate analysis, biological)

功率谱估计 信号为两个正弦信号加高斯白噪声，各正弦信号的信噪比均为10dB，长度为N，信号频率分别为 和 ，初始相位 ，取 ， 取不同数值：0.3，0.25。 为采样频率。分别用Levinson递推法和Burg法进行功率谱估计，并分析改变数据长度、模型阶数对谱估计结果的影响。(Power spectrum estimation signal into two sinusoidal signals applied Gaussian white noise, the SNR of each sinusoidal signal are 10dB, a length of N, respectively, and the signal frequency, initial phase, take, take different values: 0.3,0.25. Is the sampling frequency. Levinson recursive method were used and Burg method for power spectrum estimation, and change the length of the data analysis, the impact on the estimation model order spectrum.)

this code is LSB data hiding source book.

matlab6.5图形图像处理源程序 matlab6.5图形图像处理源程序 matlab6.5图形图像处理源程序(matlab6.5 graphic image processing source code)

实现FlightGear与外部通信，获得仿真的飞行参数及配置FlightGear。便于基于FlightGear的地面站设计(communication with FlightGear based on UDP in C++)

ICA去噪程序，与小波去噪比较，去噪效果较好。(ICA denoising procedure, compared with wavelet denoising, denoising is better.)