chopper

实现LSB数字图像水印算法，限于BMP图像(LSB digital image watermarking algorithm to achieve, limited to the BMP image)

Power Density Function amplitude of sinus function with random phase shift

The code gives an automatic solutions of simultaneous equations using gauss seidal elimination numerically. The equations must be inputted by the user accordingly.

通过给出的随机过程，该随机过程是由3个实正弦信号组成，归一化频率分别为0.1,0.25,0.27，其中相位是相互独立在【0,2*pi】上分布的随机相位；噪声是均值为0、方差为1的实高斯白噪声，信噪比为30db,30db,27db,观测样本数为N，通过bartlett法，Welch法，周期图法计算随机过程的概率谱(Given by stochastic process, the stochastic process is composed of three real sine signal, the normalized frequency were 0.1, 0.25, 0.27, including phase is independent in [0, 2* PI] on the distribution of random phase Noise variance is the mean to 0, 1 real gaussian white noise, signal to noise ratio of 30 db, 30 db, db, and the observation sample for N, by bartlett, Welch, periodogram spectrum method to calculate the probability of the random process)

eigenfaces algorithm

运动检测 检测到运动的小球并对它进行准确跟踪 有图(motion detection)

matlab函数,运算符速查，doc格式(matlab function Quick Fact)

CDMA different techniques are used to use it modulate and demodulate

无线通信系统发射端仿真中，脉冲成型滤波器。是一种根升余弦滤波器。(A pulse shaping filter in the wireless communication system. It is a root raised cosine filter.)

pdf and CDF comparision