Adaopu

Cellular Authentication for Mobile and Internet Services introduces the reader into the field of secure communication for mobile applications, including secure web browsing with a phone or PC, Single Sign-On (SSO), mobile broadcast content protection, secure location services, etc. The book discusses the Generic Authentication Architecture (GAA) of the mobile standardization body 3rd Generation Partnership Project (3GPP) and its American counterpart 3GPP2 in full detail and with all variants. It explains the usage of GAA by various standardization bodies and standardized applications, and also looks at a number of non-standardized ones, such as secure remote login to enterprise environment and card personalization.

Ergodic Capacity of Doubly Selective Rayleigh Fading MIMO Channels

MATLAB及在电子信息中的应用：q707有限长序列z变换，z逆变换。708是逆变换(MATLAB and the application of electronic information: q707 finite length sequence of z transform, z inverse transformation. 708 is the inverse transform)

说明：  中位数近似算法实现的背景减除。matlab代码。(Median approximation algorithm for background subtraction. matlab code.)

用DTW算法实现语音信号的特征对齐，解决了发音长短不一的模板匹配问题(Aligned with the DTW algorithm to achieve the characteristics of the speech signal, and solve the problem of template matching the pronunciation of varying lengths)

Design FIR filter in Matlab

语音信号的iir滤波器设计,从带有噪音的信号中提取原始声音.目前，MP3播放器一般功率放大器的工作频率范围就是这个范围。但是大部分有用的和可理解的信息的频率在200到3500Hz之间。所以我们可以在这个范围间滤波，达到使声音可理解的要求。现将数字滤波器的设计指标设为通带截止频率fb=600HZ,阻带频率fc=1200HZ,通带波纹Ap=1dB，阻带波纹As=40dB,要求确定H(z)。(design of the iir filter, get the original voice without noise)

Matlab GUI编程视频，有兴趣可以学习(Matlab GUI programming video, who are interested can learn)

说明：  模拟干涉图像的程序，matlab编写，很实用，对正在学习的朋友有帮助。(Interference image of the process simulation, matlab written, very practical, and helpful friends are learning.)

利用Capon, MUSIC进行窄带信号空域信号方向估计。比较分辨率性能。观察阵元数、信噪比、快拍数对估计器性能的影响。 (Using Capon, MUSIC for narrowband signal airspace signal direction estimates. Comparative resolution performance. Observe the number of array elements, signal to noise ratio, the number of snapshots on the estimator performance.)