plot_hht_3d

qt的一个设计模式 内有详细注解 是学习QT的很好的小例子(qt a design pattern with detailed annotations are a good learning small example of QT)

box mullar approach,data we can build by this function

1.将BMP图像内容读入内存数组。 2. 调整图像的灰度，对图像进行灰度变换（反变换）。 3. 对图像进行较正,分别取值为0.4,0.6,0.8.(1. The BMP image content is read into memory array. 2 Adjust the gray image, the image gray-scale transformation (inverse transform). 3 more positive image, respectively, the value of 0.4,0.6,0.8.)

电力系统继电保护故障启动程序，matlab编写的程序(Power System Fault launcher, matlab program written)

已知离散的坐标数据，利用这些坐标点进行椭圆拟合的程序(Known coordinates of discrete data points to use these coordinates ellipse fitting procedure)

针对雷达信号的脉冲压缩处理，进行了仿真，并加了汉明窗，以对比主副瓣比的改善(For pulse compression radar signal processing, simulation, and add a Hamming window to contrast ratio improved sidelobe)

在matlab中利用odesolver进行单自由度有阻尼体系的时程分析，该代码使用时读入地震响应加速度（可为真实数据也可修改为理想函数），所有结构参数可调。输出加速度、速度和位移时程图像。(In the matlab in the use of odesolver single degree of freedom damping system of time history analysis, the code used to read the earthquake response acceleration (for real data can also be modified to the ideal function), all structural parameters adjustable. Output acceleration, speed and displacement time image.)

局部均值分解（Local Mean Decomposition）的matlab程序，内附具体例子(Local Mean Decomposition (Local Mean Decomposition) matlab program, containing a specific example)

Mathematic model of acoustic field for ultrasonic transducers according to "Ultrasonic beam structures in fluid media" paper

基于mit数据库的时域心率算法，阈值自动更新，心率自动计算。(Mit database based on time-domain heart rate algorithm, the threshold value is automatically updated, heart rate calculated automatically.)