计算器

交错网格有限差分正演程序，matlab语言，适合于刚入门做地震波正演的新手(seismic wave modeling)

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

QGA的原代码，你可以很快的上手进行编写你自己所有的程序，如果有什么困难可以联系我，谢谢！(QGA of the original code, you can quickly get started to write all your own procedures, if any difficulties you can contact me, thank you!)

matlab程序，用于雷达mti处理算法仿真分析(radar mti processing simulation)

3*4 OSTBC最大似然检测 16QAM调制信号，可用(coherent ML detection for blind ML problem with 64-QAM signaling)

利用自相关法，计算基音周期，结果给出对应的时间值坐标。(The pitch period is calculated by the autocorrelation method, and the corresponding time value coordinate is given.)

用MATLAB程序解决高阶问题；通过20多个实例来说明线性代数在后续课和工程中的广泛应用，使得本来抽象、冗繁和枯燥的课程变得形象、简明而实用。(MATLAB program used to solve high-order problems through more than 20 examples to illustrate the linear algebra classes in the follow-up and engineering in a wide range of applications have been made abstract, and boring冗繁become the image of course, concise and practical.)

MATLAB 关于数学的一些资料，方便大家的学习，可以下载(Some information about the mathematics MATLAB to facilitate everyone' s learning, you can download)

某石油公司计划建造一条由东向西的主输油管道。该管道要穿过一个有n 口油井的油田。从每口油井都要有一条输油管道沿最短路经(或南或北)与主管道相连。如果给定n 口油井的位置,即它们的x 坐标（东西向）和y 坐标（南北向）,应如何确定主管道的最优位置, 即使各油井到主管道之间的输油管道长度总和最小的位置?证明可在线性时间内确定主管道的最优位置。(An oil company plans to construct a east to west from the main pipeline. The pipeline to pass through an oil field n wells. Wells from each must have a pipeline along the shortest path (or South or North) connected with the competent Road. If given the location of oil wells in n, that is, their x coordinates (east-west) and y coordinates (north-south), should be how to determine the optimal position in charge of Road, even if the wells to the pipeline in charge of Road between the sum of the smallest length location? proved to be linear time to determine the optimal position in charge of Road.)

说明：  matlab编写，用于哈佛曼编码的程序，通信类课程帮手(Matlab prepared for Harvard Man coding procedures, communications courses helper)