scyt_interplotion

说明：  matlab仿真生成C/A码　,希望大家可以用的上，能帮上忙，谢谢(GPS　signal C/A code generation,use matlab similution,very useful,hope you will like ,thank you,enjoy it)

matlab中文帮助，对matlab有需求的可以看看(matlab Chinese help, in need of matlab can look at)

多种基于DCT变换域水印方法实现论文。对于数字水印初学者是很好的基础文案。(A variety of DCT-based transform domain watermarking method papers. Digital Watermarking for beginners is a good basis for the Record.)

compression algorithm-matlab code

轮胎力学特性，魔术公式，包含多个工况，可以修改参数，m文件(Tire mechanical characteristics, magic formula, contains more than one condition, you can modify the parameters, m file)

独立成分分析的算法FastICA法（也叫固定点算法）(Independent component analysis algorithm FastICA method (also called fixed-point arithmetic))

提出了一种求解电磁场有限元 边界元混合法所生成的线性方程组的有效方法 ———内观 法结合多波前法.由于该线性方程组的系数是一个部分稀疏部分满填充的矩阵,为了加速求解,应用内观法将系数矩阵分为 2块,一块是有限元法形成的稀疏矩阵,另一块是边界元法生成的满阵,然后用多波前法求解稀疏矩阵方程,用高斯 约当消去法解满阵方程. 采用该方法,计算了二维多层介质柱体的雷达散射截面.计算结果表明,该方法的计算效率远远高于传统的高斯法.(Proposed for solving mixed finite element boundary element linear equations generated by an effective method of Vipassana--- a combination of multi wave front method. Since the coefficients of linear equations is a part of the sparsely populated part of the full matrix, in order to speed up the solution, application of Vipassana coefficient matrix is ​ ​ divided into two, one is the finite element method for the formation of the sparse matrix, the other is the boundary element method generates the full array, and then use the multifrontal method for solving sparse matrix equation Gauss Jordan elimination method with full matrix equation solution. use this method to calculate the two-dimensional multi-layer dielectric cylinder of the radar cross section. The results show the computational efficiency of this method is much higher than the traditional Gaussian law.)

说明：  本文在DCT噪声信号模型研究的基础上,提出了一种新的音频水印嵌入位置选择策略和一个应用该策略的自适应音频水印算法. 通过定义DCT系数的噪声敏感度,建立了水印嵌入位置和嵌入水印后的音频信号的听觉感知性之间的关系,根据音频水印的不可听性的要求选择最优的嵌入位置,然后调节水印强度来满足鲁棒性的要求,从而最大程度地保持音频水 印的不可听性和鲁棒性,为解决音频水印嵌入过程中不可听性和鲁棒性之间的矛盾提供了一种策略.(Though m any w orks in the literature agree that w aterm ark should be em bedded in the middle2fre2 quency coefficients or percep tually significant components, how to determ ine the position em bedded has no universal definition. A new em bedding strategy and an algorithm app lying the strategy are p roposed for audio w aterm arking in DCT dom ain based on research of DCT noise m odal. B y defining a noise sensitivity vector, a m ath relationship betw een the w aterm ark em beddable position and the audible quality of the audio file w ith w aterm ark is set up.)

一种求根music，高分辨谱估计算法，包含论文和代码(rooted music algorithm)

可模拟单透镜的几何光线追迹图，分析焦距与面型的关系，作为输入zemax，codev光学设计软件的初始结构(single lens design，zemax，effective focal length )