mytest1

About a com application 关于一个com的应用(The Application of About a com application to a com)

具有可逆性与周期性的Arnold置乱变换，目的是实现对图像的置乱，用于图像加密中(The realization of image scrambling, used in image encryption)

用于PDA的GPS源代码(for PDA GPS source code)

关于图形学的一个算法，主要实现了投影。比较适合初学者(An algorithm on the graphics, the main achievement of the projector. More suitable for beginners)

vtk、itk、tcl/tk联合开发教程。(vtk, itk, tcl/tk Joint Development Guide.)

说明：  用simulink进行的有源电力滤波器的仿真，波形清晰(Simulation of active power filter with clear waveform)

本程序是基2的时间抽取FFT变换，可以将信号从时域转换到频域。(This procedure is the base 2 time extraction FFT transform, can transform the signal from time domain to frequency domain.)

实现16位bmp图像转jpeg，并可以通过调节源码可实现压缩率(16bit bmp zipped to jpeg style )

说明：  声呐或者雷达系统发射信号后，通过波束形成算法对两个目标（方位分别为theta1、theta2）回波进行仿真，经过相位补偿，可以看出图像有两个波峰，波峰处指向性函数峰值最大，峰值所对应的的角度值即为目标的方位角。所以该程序对数字波束形成（DBF）的原理进行了仿真，适合初学者掌握阵列信号处理中数字波束形成的原理。(After the sonar or radar system transmits the signal, the echo of the two targets (the azimuth is theta1 and theta2 respectively) is simulated by the beamforming algorithm. After the phase compensation, it can be seen that the image has two peaks, the peak of the directivity function is the largest, and the corresponding angle value of the peak is the azimuth of the target. So the program simulates the principle of DBF, which is suitable for beginners to master the principle of DBF in array signal processing.)

利用改进的ostu即最大类间方差方法进行视频图像二值化(Ostu that the use of improved Otsu method of video image binarization)