Gauss_Seidel_task_1a

数字水印(digitalwatermarking)是一种信息隐藏技术，它的基本思想是在数字图像、音频或视频等数字媒体作品中嵌入秘密信息，以便保护数字作品的版权、证明作品的真实可靠性、跟踪盗版行为或提供作品的附加信息。(Digital Watermarking (digitalwatermarking) is a kind of information hiding technology, its basic idea is in the digital image, audio or video digital media works, such as embedded secret information in order to protect the copyright of digital works to prove that the true reliability of the work, tracking piracy works or provide additional information.)

一种基于矢量量化快速编码的图像压缩方法种基于矢量量化快速编码的图像压缩方法 (A Fast Vector Quantization Encoding Method for Image Compression)

求一个信号的频谱分布，并求某一帧的频谱图。(Seeking a signal of the spectrum distribution, and the frequency spectrum diagram of the requirements of a certain frame.)

用小波变换的方法进行图像压缩、去噪、分解、合成的matlab程序。(Method using wavelet transform for image compression, denoising, decomposition and composition of the matlab program.)

寻找测试样本的最近邻，可以有效的用于用于模式识别，信号处理(This is a small but efficient tool to perform K-nearest neighbor search, which has wide Science and Engineering applications, such as pattern recognition, data mining and signal processing. The code was initially implemented through vectorization. After discussions with John D Errico, I realized that my algorithm will suffer numerical accurancy problem for data with large values. Then, after trying several approaches, I found simple loops with JIT acceleration is the most efficient solution. Now, the performance of the code is comparable with kd-tree even the latter is coded in a mex file. The code is very simple, hence is also suitable for beginner to learn knn search.)

求分数阶传递函数的阶跃响应的matlab程序(Step response of the transfer function of Fractional matlab program)

its matlab code for lane detection algorithm for intelligent highway

关于弹簧连接耦合摆的计算模拟。求出系统的两个简正模和一般振动解。并做出摆的位移曲线，分析振幅调制现象。(Connect coupling on spring pendulum simulation. Obtained system of two normal vibration mode and the general solution. And make a pendulum displacement curve, analysis of the phenomenon of amplitude modulation.)

关于信道容量及误码率，里面M文件较多，大家自己去看看吧(On channel capacity and error rate, which M file more, we go and see their own)

对m序列的原理、结构、性质进行了分析,在Matlab中采用编程和Simulink动态仿真功能2 种方式实现了m序列.仿真实验表明,这2种方法简单,易于实现,可移植性较强,具有可行性和 设计的合理性. (The principle of the m sequence, structure and properties were analyzed in Matlab, Simulink using dynamic programming and simulation capabilities are 2 ways to achieve the m sequence. Simulation results show that these 2 simple and easy to implement, portability strong the feasibility and rationality of the design.)