fdtd3Dplanewave

Matlab code for implementing ADPCM modulation in an efficient manner

程序的主要功能是仿真通过仿真三维物体运动模型，说明卡尔曼滤波在测量精度中的应用。(The main function of the program is three-dimensional simulation of the movement of objects through the simulation model, indicating that the measurement accuracy of the Kalman filter application.)

说明：  Mutilate 滤波器设计报告。文档分析和代码。(Mutilate filter design report. Document analysis and code.)

说明：  matlab随机函数详细讲解，并附有实例比较(matlab random function explained in detail, along with more examples)

MATLAB遗传算法randExMutr变换的源代码(MATLAB Genetic Algorithm randExMutr transform source code)

Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection and authentication of multimedia data in a networked environment, since it makes possible to identify the author, owner, distributor or authorized consumer of a document. A new watermarking technique to add a code to digital images is presented: the method operates in the frequency domain embedding a pseudo-random sequence of real numbers in a selected set of DCT coefficients. Watermark casting is performed by exploiting the masking characteristics of the Human Visual System, to ensure watermark invisibility. The embedded sequence is extracted without resorting to the original image, so that the proposed technique represents a major improvement to methods relying on the comparison between the watermarked and original images.

基于宽带Marr子波的广义S变换程序，与常规S变换相比，时频聚焦性更高。(Generalized S transform broadband Marr wavelet-based program, compared with the conventional S-transform time-frequency focus more.)

一维最小二乘无网格法matlab程序 可参见张雄无网格专著(One-dimensional least squares meshless method matlab program can be found in Zhang Xiong meshless monograph)

用matlab编写得一个小程序，一个会变大变小得地球(Matlab was used to prepare a small procedure, a small Earth will change)

说明：  主要讲解偏微分方程组的离散方法，包括有限差分法，有限体积法(Mainly on the discrete method of partial differential equations, including finite difference method, finite volume method)