PiterbargEL0910(1)

基于matlab平台的一些简单实用程序，大家一起共享实用程序。(Matlab platform based on some simple utility, we work together to share utilities.)

能实现局部线性嵌入算法来完成数据的降维，需要设置参数有K，d(To achieve local linear embedding algorithm to perform data dimensionality reduction, you need to set the parameters K, d)

LFM 抽取处理 D=5 LFM加SNR=10dB LFM加10dB噪声抽取输出需加滤波器(LFM draw sample D=5，LFM was added with noise，and SNR=10dB)

说明：  此程序给出由三个不同频率的正弦所组成信号的联合时－频分布。该图是三维图形的二维投影，在该图中，一个轴是时间，一个轴是频率。由该图可清楚地看出信号的时间－频率关系。(This program shows three different frequency sinusoidal signal composed of joint time- frequency distribution. The plan is two-dimensional projection three-dimensional graphics in the figure, one axis is time, an axis is frequency. By the diagram is clear that the signal of the time- frequency relation.)

an example of FIR filter (FIR filter )

to calculate the colour invariance

lbg算法用matlab实现。。内有英文文献及相关代码(Lbg algorithm matlab.. There were English literature and relevant code )

能量检测，根据以URKOWITZ 在1967年发表的能量检测文章以及Digham 2003、Ghasemi 2007发表的一系列文章为参考， 在AWGN信道中，给定SNR下，先产生一个原始信号（单音或者BPSK基带信号），然后叠加高斯噪声， 再进行能量检测(Energy detection, according to URKOWITZ the energy released in the 1967 test articles, and Digham 2003, Ghasemi 2007 series of articles published as a reference, in the AWGN channel, for a given SNR, the first generating an original signal (mono or BPSK baseband signal), and then superimposed Gaussian noise, then the energy detection)

kaiser window technique

用于去除背景，得到原图与背景相减的图像并二值化(To remove the background, the subtraction image and background image and binarization)