Untitled2

Chebyew filter & matlab lab workshop ppt by vibhor kumar bhardwaj

基于matlab采用匹配滤波器实现的PN码捕获与跟踪，对学习PN码捕获的朋友很有帮助(Matlab using matched filter based on the PN code acquisition and tracking, PN code acquisition in learning helpful friend)

说明：  自适应中值滤波器的滤波方式和传统的中值滤波器一样,都使用一个矩形区域的窗口Sxy,不同的是在滤波过程中,自适应滤波器会根据一定的设定条件改变(即增加)滤窗的大小,同时当判断滤窗中心的像素是噪声时,该值用中值代替,否则不改变其当前像素值,这样用滤波器的输出来替代像素(x,y)处(即目前滤窗中心的坐标)的值。(Adaptive Median Filter for filtering methods and the same as the traditional median filter, use a rectangular area of the window Sxy, different in the filtering process, the adaptive filter in on certain Presumed Conditions change (an increase of ) filter window size, while when the judge is the filter window center pixel noise, the median value is used instead of, or does not change its current pixel value, so that the output with a filter to replace the pixels (x, y) Office (that is, coordinates of the current filter window centered) values.)

自适应（LMS）算法在噪声抑制中的应用。在仿真中，原始信号选为sin((0.2*pi)*t), 噪声信号采用标准白噪声，延迟D=1，收敛因子分别是u=0.001和u=0.3(Adaptive (LMS) algorithm in noise suppression application. In the simulation, the original signal is selected sin ((0.2* pi)* t), noise signal using the standard white noise, the delay D = 1, respectively, convergence factor u = 0.001 and u = 0.3)

基于线性系统理论的MATLAB编程，包括对线性系统理论的各种实践应用(Based on the linear system theory of MATLAB programming, including the linear system theory of various practical applications)

实现SAR 的二维线性调频信号仿真，方位向、距离向都是LFM信号，脉冲压缩是用时域卷积实现的！(Two-dimensional realization of SAR chirp signal simulation, the azimuth, distance to all LFM signal, pulse compression is achieved using time-domain convolution!)

it is a code in MATLAB for calculation of bit error ratio vs signal to noise ratio , for multiuser code division multiple access .. usually in any communication system calculation of BER is very important to know the performance of system .. so in this program multiuser CDMA system is used ,, spreading is done using HADAMARD matrix .. or WALSH code .. and BER vs SIGNAL to NOISE ratio graph is computed

这是几幅比较好的SAR影像，可用于去噪或者目标提取、分割等算法的示例图像，图片比较清晰而且地物比较丰富。(This is the good pieces of SAR images can be used for denoising or object extraction, image segmentation algorithm for example, the picture is relatively clear and rich in surface features.)

mel spectral keofisien

PLS toolbox for multivariable analysis