fdtd_1d_code

地震资料处理的matlab源码软件包，适合地震勘探的同行(Seismic data processing software package matlab source, seismic exploration for suitable peer)

用形态学的方法求二值图像的周长，面积，圆形度，矩形度和伸长度( use morphological mathod to get the perimeter, area, circle, the rectangle and stretch the length of the binary image)

说明：  Matlab离散频谱比值校正法程序，适合相关专业毕业设计使用(Matlab discrete spectrum the ratio of correction procedures for the use of graduate design-related)

本源代码用来进行虹膜区域检测，可以用来进行视线跟踪、眼睛区域检测等。(Iris source code used for detection, can be used for eye tracking, eye region detection.)

program to generate the RKHS for given vectors

标准大气子程序，通过插值获得h=0-21336m高度大气密度，声速，静压，粘性等数据。(The standard atmospheric subroutines, h = 0-21336m highly atmospheric density, sound velocity, static pressure, viscosity data obtained by interpolation.)

matlab实现决策树C4.5算法,首先利用训练数据创建决策树，再用测试数据对决策树进行剪枝。(C4.5 decision tree algorithm matlab realize, first use training data to create decision trees, and then test data for decision tree pruning.)

1 设计一个ＦＩＲ数字低通滤波器， 满足一组模拟滤波器的指标参数；分别采用三角窗、hamming窗、blackman窗和kaiser窗进行设计。比较不同窗的设计效果。要求描绘滤波器的脉冲响应、窗函数以及滤波器的幅频和相频响应曲线。 2. 用上述设计滤波器完成几组给定信号的滤波。 3.设计数字高通、带通、带阻滤波器，要求描绘滤波器的脉冲响应以及滤波器的幅频和相频响应曲线。 (1、A design of a FIR digital low-pass filter, analog filters to meet the target of a group of parameters were used triangular window, hamming window, blackman windows and kaiser window design. Window to compare different design effect. Requirements described impulse response filter, window function and the filter amplitude-frequency and phase frequency response curve. 2. Using the above filter was designed to complete several sets of a given signal filtering. 3. Design of digital high-pass, band pass, band-reject filter, the filter impulse response described demand as well as the filter amplitude-frequency and phase frequency response curve.)

仿真OOK载波调制信号在AWGN信道下的误码率和误比特率性能，并与理论值相比较。 OOK是ASK调制的一个特例，把一个幅度取为0，另一个幅度为非0，就是OOK。(OOK modulation signal simulation in AWGN channel bit error rate and bit error rate performance, and compared with the theoretical value. OOK is a special case of ASK modulation to an amplitude taken as 0, and the other non-zero amplitude is OOK.)

针对二值图像的广泛应用，嵌入鲁棒性水印，测试其抵抗结合攻击的能力。(value against the wider use of images, embedded watermark robustness testing their resistance combination attacks.)