freespace1_1_ABCadded1_2

数字水印在linux下面运行的代码，内有详细的注释说名(a watermarking program which can run under Linux. Attached with clear instructions.)

极大似然估计法定位，对于TDOA测距时进行的定位，简单源代码，有锚节点存在的节点自定位(Maximum likelihood estimate for localization)

webserver-ssl library This is part of revision 226 of the Stellaris SSL Web Server.

由磁悬浮小球的状态空间模型计算出其鲁棒控制器，并在simulink模型中对鲁棒控制器的性能进行了验证。(Magnetic levitation ball from the state-space model to calculate the robust controller and in simulink model for robust controller performance is verified.)

：滤波 fs=400 采样频率,必须大于两倍基带信号最高频率 ts=1/fs 采样时间间隔 T=5 时间窗大小 t=0:ts:T (hf1=zeros(1,N) hf1(f<=B1&f>=-B1)=1 y1=hf1.*fftshift(y) figure subplot(211) plot(f,abs(fftshift(y))/N,f,hf1, r-- ) axis([-fs/2,fs/2,0,1.2]) title( 原信号频谱 ) xlabel( f /Hz ) subplot(212) plot(f,abs(y1)/N) title( 低通滤波，截止频率90Hz ) xlabel( f /Hz ))

matlab实用程序百例，新手上手必背，让你快速掌握matlab的使用，推荐！(matlab utility 100 cases, should ? novice get started, let you quickly master the use of matlab, recommended!)

三维空间中产生一棵树，并划分成voxel，每个叶片都占据一个voxel的大小。(Three-dimensional space to produce a tree, and is divided into voxel each leaf occupies the size of a voxel.)

说明：  功率谱估计随机数字信号处理中的另一个实验，以太阳黑子估计太阳活动的周期(Power spectrum estimation random digital signal processing in another experiment, in order to estimate the solar sunspot activity cycle)

一种新的基于matlab环境的用SVD原理实现图像压缩的源程序，程序简单易懂(Implementation of new image compression using SVD, the program easy to understand)

newton numerical method