ISDA_Matlab

说明：  关于matlab的登入界面路径是需要改的看看怎么样(login interface matlab)

正交匹配追踪算法的压缩传感matlab代码，又需要的可以看一下~(failed to translate)

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.)

详细介绍了3G网络的发展前景和应用程度，是一本很全的知识宝典，(Details of the 3G network development prospects and application level, is a very wide knowledge of canon,)

Its a saliency method by sombody ok.

说明：  Matlab实现频谱分析 其幅值和相位已经标准化(Matlab achieve its amplitude spectrum and phase analysis have been standardized)

texture feature extraction insert into on the basis of rgb colore image clustering methods

时频分布已被用来提供高分辨率表示大量的信号处理应用程序。然而,高分辨率和准确瞬时频率(如果)估计通常依赖于分布和使用信号相位函数的复杂性。(The time-frequency distribution has already been used to provide high resolution said a lot of signal processing applications. However, high resolution and accurate instantaneous frequency (if) estimates usually depends on the distribution and use of the complexity of the signal phase function.)

计算信号里的信噪比的程序，用在数字信号分析中和振动信号处理等方面(The function SNR get the signal to noise (SNR) ratio)

安装在matlab软件中，可以读取、修改、创建Netcdf文件(Matlab software installed, you can read, modify, create Netcdf file)