classic_texture_segmentation_matlab

说明：  简单的小波包分解和重构单路信号，包括求小波的能量熵(Wavelet Packet Analysis)

这是一个基于粒子群算法来寻找图片上的园的圆心，通过自己设置参数，可以在较短的时间内较为精确的找到一个图所有圆的圆心(It is used to find the location of circles in a complicant map. For this fuction, you can set some paraement yourself and it will return the result in a very short time. )

matlab对滞回模型的校准程序，主要是校准改进I-K滞回模型的校准(Matlab in the civil engineering)

matlab仿真平台下仿真输出spwm的电压和电流模型(Voltage and current simulation model for spwm)

用matlab做的有关边缘检测的一个代码，该代码可以进行多种的边缘检测(Using matlab to do the edge detection of a code that can be a variety of edge detection of)

说明：  一个关于实现希尔伯特变换的MATLAB实用源程序，对大家有一定的参考作用。(Hilbert transform on the realization of a practical source MATLAB, all of us have some reference.)

从视频图像序列中，每隔一定间隔提取出一幅图像，并采用中值法提取背景图像(get a background from a video with mean method)

wireless channel description please see attached

说明：  OFDM是将高速串行数据分成成百上千路并行数据,并分别对不同的载频进行调制,这种并行传输体制大大扩展了符号的脉冲宽度,提高了抗多径衰落的性能。同时,在传统的频分复用方法中,各子载波之间的频谱互不重叠,频谱利用率较低。而采用OFDM技术,一个OFDM符号之内包括多个经过调制的子载波的合成信号,每个子载波在频谱上相互重叠,这些频谱在整个符号周期内满足正交性,因而在接受端可以保证无失真恢复,从而大大提高频谱利用率。(OFDM divides high-speed serial data into hundreds of parallel data channels and modulates different carrier frequency separately. This parallel transmission system greatly expands the pulse width of symbols and improves the performance of anti-multipath fading. At the same time, in the traditional method of Frequency Division multiplexing, the spectrum between the sub-carriers does not overlap each other, the spectrum utilization ratio is low. In the case of OFDM, an OFDM symbol consists of multiple modulated sub-carriers, each of which overlaps in the spectrum, which is orthogonal throughout the symbol period, thus, no distortion recovery can be ensured at the receiving end, thus greatly improving the spectrum utilization ratio.)

un article de Calemetts contient Analysis of Non Ambiguous BOC Signal Acquisition Performance