qidongli

ests for KeyGenerator constructor and methods.

我从论坛上下载的断裂力学导论，是一本比较好的书籍(I downloaded from the forum Introduction to fracture mechanics is a good book)

经典的隐写算法，包括LSB替换和随机LSB匹配。对于实现简单的信息隐藏最常用的方法，具体用matlab实现。(This is LSB steganography, it includes LSB replacement and random LSB matching. it is most common method for information hiding, and it implement with matlab)

说明：  Beam width is the aperture angle from where most of the power is radiated. The two main considerations of this beam width are Half Power Beam Width (HPBW) and First Null Beam Width (FNBW).

产生零均值单位方差高斯白噪声的1000个样点,估计随机过程的自相关序列(units have zero mean Gaussian white noise variance to the 1,000-point, it is estimated that the random process autocorrelation sequence)

雷达信号产生模拟器，包含一个简单的界面(a radar signal generation program with gui)

常用软件包,可以保存,做为日常函数调用,比较通用(Commonly used software packages, can be preserved as a day-to-day function call to compare GM)

This file compares three different versions of the Kalman filter. The Kalman filter is used for recursive parameter estimation. The Kalman filter can handle noisy measurements. The first implemented filter (fcn_KF) is the Kalman filter with standard update of the covariance matrix P. The covariance matrix reflects the uncertainties of the predictions. To improve the numerical stability Potter developed a square root update (fcn_KF_SRP) of the covariance matrix P. Another version is the square root covariance update via triangularization (fcn_KF_SRT). This file generates a model. Then the three Kalman filters perform an estimation of the model parameter. At the end the results are compared. Sources: Simon, D. (2006): Optimal state estimation Kaminski, P. (1971): Discrete Square Root Filtering: A Survey of Current Techniques Golub, G. (1996): Matrix Computations

地球物理磁法，两个球体剖面磁异常Za向上延拓(Geophysics magnetic method, the two spheres profile magnetic anomalies Za upward continuation)

perl programers reference guide是Perl编程者的一本参考手册，包含有各种命令的讲解和大量的编程示例。(perl programers reference guide who is Perl Programming in a reference manual containing various orders of the presentations and a lot of programming examples.)