OCAOCP-Oracle-Database-11g-AllinOne-Exam-Guide

灰色系统预测模型以及建模，通过输入样本，可实现样本统计输出(Gray system model and prediction modeling, through the importation of samples, sample statistics can be output)

对数据的分析，特别是线性回归其中有好几种方法来进行！(Analysis of the data, in particular linear regression in which there are several ways to carry out!)

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.

本程序为模糊聚类算法在图像分类中的应用。（图像的大小为30*30）。(This procedure for the fuzzy clustering algorithm in image classification applications. (Image size is 30* 30).)

2d radom walk from one destination to an another. zipzap bubbelz rules random words to fill the gap

用matlab编辑出卡农的音乐，还不错，可以听的(Matlab edit Canon music is pretty good, you can listen to)

An ad-hoc network with a sender, a destination and a third station act- ing as a relay is analysed. The channels are modelled containing thermal noise, Rayleigh fading and path loss. Di® erent combining methods and di- versity protocols are compared. The amplify and forward protocol shows a better performance than the decode and forward protocol, unless an error correcting code is simulated. To combine the incoming signals the chan- nel quality should be estimated as well as possible. Information about the average quality shows nice bene¯ ts, and a rough approximation about the variation of the channel quality increases the performance even more.

一种非常实用的识别数字的matlab程序，内有使用说明(the code can be used to recognition numbers)

用MATLAB程序实现卫星位置解算、用户位置解算（最小二乘法）、导航电文读取、坐标转换。(MATLAB program to achieve the satellite position solver, solver user location, navigation message reads, GPS positioning simulation (implemented by the least squares method).)

information theory using matlab