homework1

文献1的仿真程序 solves the linear least squares problem with nonnegative variables = using the newton s algorithm in [1]. [1] Portugal, Judice and Vicente, A comparison of block pivoting and ％ interior point algorithms for linear least squares problems with ％ nonnegative variables, Mathematics of Computation, 63(1994), pp. = 625-643(literature of a simulation program solves the linear least squares p roblem with nonnegative variables using the n = ewton's algorithm in [1]. [1] Portugal. Judice and Vicente. A comparison of block pivoting and interior% po int algorithms for linear least squares proble ms% with nonnegative variables, Mathematics of Computation, 63 (1994), pp. = 625-643)

Visually select image using a GUI

本程序主要用于时间序列的去趋势算法，也就是常说的DFA。(here is a program to estimate the DFA of a time series)

实现超宽带信号在自由空间，室内的传播过程，该过程通过FDTD技术来实现。(Through FDTD technology,we simulate the process that UWB signal transmits in freespace)

PCA(主成分分析)的MATLAB源代码，包含测试例子及使用文档，该算法主要用于图像分类时特征的降维。(PCA (Principal Component Analysis) of the MATLAB source code, including test case and use the document, the algorithm is mainly used for image classification and feature dimensionality reduction.)

用于实现森林防火隔离带的计算和画图 我用MATLAB编的程序，存为txt文档格式，方便大家查看。这是我们组在学校国际赛选拔赛时编的程序，用于实现森林防火隔离带计算和画图。可立即执行。(Forest Fire Barrier used to implement the calculation and drawing program I use MATLAB code, save it as txt file format to enable easy viewing. This is our group in the school when the series of international competitions qualifying procedures for the realization of Forest Fire Barrier calculation and graphics. Can be implemented immediately.)

对于matlab plot 画图时出现图像纵坐标比较接近时颜色分辨不出来，使图像颜色更丰富。(For matlab plot occurs when the image drawing closer to the vertical axis can not be seen when the color to make the image more colorful.)

fft带阻滤波器，简单实用，最干净的实现数字数据滤波；(fft band stop filter , simple and practical , the cleanest digital data filtering )

Amplitude modulation and demodulation

双站SAR回波仿真及成像处理,成像处理采用非线性CS算法(bistatic SAR echo simulate and imaging)