Spectrogram-of-a-voice-data

《精通MATLAB最优化计算》一书中各章实例的源代码程序(" Mastering MATLAB optimization calculations," a book chapter example source code of the program)

学习类书籍，应用数学字典，用于科学家及工程师(Learning books, applied mathematics dictionary for scientists and engineers)

matlab 雷达仿真, 英文书籍，适合科研人员及学生(Matlab simulation for Radar)

说明：  本文提出一种在原始视频DCT(离散余弦变换)与SVD(奇异值分解)域自适应嵌入水印的算法。算法首先将视频流分割成一个个场景,场景中的视频图像被变换到DCT-SVD域中,水印量化嵌入在最大奇异上,实现了水印盲检测。同时实验证明该算法在满足透明性要求下也满足一定的鲁棒性要求,能够抵抗低通滤波、中值滤波、椒盐噪声、高斯噪声、H.264压缩攻击以及统计攻击和帧剪切等攻击。(This paper presents an original video in the DCT (Discrete Cosine Transform) and SVD (singular value decomposition) algorithm for adaptive watermark embedding. Firstly, a video stream is divided into scenes, scenes of the video image is converted to the DCT-SVD domain, the watermark embedded in the largest singular quantification, the realization of the watermark signal. Furthermore, the experiments show that the algorithm meet the transparency requirements are met under certain robustness requirements, can resist the low-pass filtering, median filtering, salt and pepper noise, Gaussian noise, H.264 compression attacks and attacks and frame shear statistics attack.)

利用matcont求解连续性非线性动力学问题并画图求出其稳定解(Use matcont problem solving nonlinear dynamics of continuity and drawing its stable solution is obtained)

ber for bpsk modulation in ofdm channel

Matlab Code of image propert for stat analysis

采用matlab/simulink仿真环境建立捷联惯导系统的垂向通道仿真模型，利用高度气压计进行增稳仿真，取得良好的高度通道稳定的效果。(The model of vertial channel was developed in matlab/simulink.By using the high sensor to upgrade the high stability.)

i hope its useful for students

in this program, low resolution s images were converted to high resolution s images.