Acoustic-Echo-Cancellation

主要是Matlab和Simulink相关的资料,包括Simulink使用手册,通信模块之类的。(Matlab and Simulink are mainly related information, including Simulink user manual, such as communication module.)

说明：  用于MATLAB编程及开发，解决实际问题，(For MATLAB programming and development, to solve practical problems,)

MMSE detection of frequency offset

The Interleaved Frequency Division Multiple Ac- cess (IFDMA) scheme is based on compression, repetition and subsequent user dependent frequency shift of a modulated signal. Multiple access is enabled by the assignment of overlapping but mutually orthogonal subcarriers to each user. In this paper it is shown that IFDMA can be regarded as unitary precoded OFDMA with interleaved subcarriers. On the other hand, IFDMA is shown to be a CDMA variant with frequency domain orthogonal signature sequences and chip interleaving. Thus, it combines the advantages of single and multi carrier transmission such as low peak to average power ratio, orthogonality of the signals of different users even for transmission over a time dispersive channel and low complexity. Simulation results show the good performance of coded IFDMA transmission over a mobile radio channel for different data rates.

说明：  matlab中位值滤波，可以对连续信号进行中位值滤波(matlab median filter, the signal can be continuous median filter)

说明：  瑞利随机数的生成，通过两个同方差的正态分布而求得，并求出其PDF和CDF(Rayleigh random numbers generated by two normal distribution with variance that obtained and solved its PDF and CDF)

MATLAB 小波分析高级技术——书中的一些应用程序(MATLAB senior technical wavelet analysis-- Some of the applications)

由海洋模式数据和卫星高度计诊断的海表面高度诊断海洋中尺度涡旋的matlab程序(Detect the geostrophic eddies altimetry and ocean models sea surface height (SSH). Detection method : a combination of detecting the largest closed contours in SSH and the positive values of an Okubo-Weiss parameter. This require less tunable parameters in comparison to previous methods. This is usefull for the comparisons between different products, such as models and altimetry.)

说明：  不同的K近邻分类算法，基于matlab开发，不错。(matlab knn classification)

txt格式心电信号的载入及滤波，滤波方法有巴特沃斯低通和小波分析(txt format to load and ECG filtering, Butterworth filtering methods and wavelet analysis of the low-pass)