computer_v1

应用系统动力学模型，解决在一个封闭的海岛上，对两个群体：1.狐狸(FOXES)；2.啮齿动物（RODENTS）关于生态平衡的问题。详见说明。(With the use of system dynamics model, the program resolves a problem that based on the ecological balance.)

image source method old

简单的if else，和switch分支的小程序，希望大家谅解(Simple if else, and switch branches applet, I hope you understand)

MATLAB符号计算，内容涵盖： 1 符号对象 2 符号微积分 3 级 数 4 符号方程求解 (MATLAB symbolic computation, covering: a symbolic object 2 sign symbol calculus equation 3 series 4)

说明：  蒙特卡罗方法可以有效地解决复杂的工程问题，而MATLAB具有强大的数值计算功能。将二者结合使用，可以得到高效的解决问题的方法。本文阐述了该方法并通过实例验证了该方法的正确性和优越性。 (Monte Carlo method can effectively solve complex engineering problems, and MATLAB has powerful function of numerical calculation. The two in combination, can be cost-effective solution to the problem. This paper describes the methods and examples of the method to verify the correctness and superiority.)

right shift and info

Synthetic aperture radar imaging provides high resolution images of large areas. The intensities of pixels in a SAR image are based on the spatial orientation, roughness, and dielectric constant of the surface imaged. SAR is an active sensor, transmitting its own energy, and then measuring the return scattered by the earth抯 surface back to the satellite抯 antenna. SAR processing is the transformation of raw SAR signal data into a spatial image. In this communication, we present a contribution concerning implementation of a SAR image formation with the IDL language. This process is performed in a frequency domain correlation of the received signal including range compression, range migration, and azimuth compression. The output is the final step in which the data is transposed back into its original format and written to an output file.

极化SAR，将读取的San Francisco地区数据转成Muller矩阵的程序(Polarization SAR will read data into San Francisco Muller matrix program)

自己实现的一维、二维DFT。优点：变换后的低频分量在中间，弥补了matlab库函数的不足（高频分量在中间）(Realize their own one-dimensional, two-dimensional DFT. Advantages: low-frequency components after the transformation in the middle, made up for the inadequacy of matlab library function (high-frequency component in the middle))

matlab编写的实现surf的平台 老外的东西，可以进行验证(matlab prepared foreigner platform surf achieve things, you can verify)