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This invention relates to MIMO test method in a multi-user MIMO radio communication system including: estimating the channel matrixes of all users at the base station, computing an orthogonal projecting matrix M of the interference matrix of each user and transmitting M to each user periodically, receiving data sent by the base station at the user end and getting the orthogonal projecting matrix M from the received data, transforming the MIMO test of a desired user to the minimum value of a K-element secondary convex function, in which, K expresses the number of sending antennas and getting estimation of the test data by a ball test method.

一种多用户多输入多输出无线通信系统中的MIMO检测方法，包括步骤：在基站估计所有用户的信道矩阵；计算每个用户的干扰用户矩阵的正交投影矩阵M，并将每个用户的正交投影矩阵M定期发送给每个用户；在用户端接收基站发送的数据，并从接收的数据中得到正交投影矩阵M；利用正交投影矩阵M将期望用户的MIMO检测转化为K元二次凸函数的极小值，其中K表示对期望用户而言，发送天线的个数；利用球检测的方法，得到检测数据的估计。

The thesis pays attention to the features of two methods of data exchanging among management stations: EJB invoke fits to exchange bulk of data and the MOM fits to exchange minor but key data.

论文着重讨论和比较了构架中交换数据的两种方式的特点：EJB调用方式适合交换数据量较大的非实时数据，消息通信方式适合交换数据量相对较少的实时数据。

For example, some ungranted users may intrude database through rounding the system access control mechanism, and get the data illegal;the lost of data storing medium could result in the data-leaking in the database;the internal manager do misfeasance utilizing his own purview.

某些非授权用户可能绕过体系的拜访控制机制入侵数据库，非法地获取数据；寄存数据的介质丢失，造成数据库中的数据泄露；内部管理人员应用其自身权限从事不当行为等等。

SPSS has a friendly data editor that resembles Excel that allows you to enter your data and attributes of your data missing values, value labels, etc.

数据管理。SPSS有一个类似于Excel的界面友好的数据编辑器，可以用来输入和定义数据。

The approach first chooses three continuous data points in turn when the data points in time series are scanned. According to the angle formed by these three data and the extreme value in monotone sequence, the method then records key points reflecting the sequences changing feature.

该算法在扫描数据的过程中利用单调序列中三个连续数据形成的夹角和非单调序列中的极值点，从序列中挑选反映趋势变化的关键点，实现时间序列的线性拟合。

In the developing , we use the incremental model: Choose transaction systems; Collect requirement; Make sure the technology of end user layer; Create a data model; Develop data warehouse base on data model and requirement; Return to moodily transaction systems self; Create codes; Test; Train users .Then we start the next increment.

在系统开发过程方面，我们采取迭代的方式进行：选择业务系统；收集需求；确定合适的终端用户技术；建立一个数据模型；基于用户需求和业务数据模型，开发数据仓库、数据模型；从数据仓库，数据模型返回修改业务系统及数据集市本身；生成执行ETL和数据交互过程的代码；测试数据仓库；第一轮迭代投入生产、培训业务人员，并开始规划下一轮迭代。

This was mainly caused by the complexity of marine data, the multiformity of data source, the difference of the information platforms and the nonstandard format of data.

近年来，在海洋灾害预测、预报等海洋信息产品的开发中，对准确、大量、连续、实时的海洋要素监测数据的依赖性日趋增强。

The data needs to be transferred from testers to the host computer in the testing system for real-time acceleration. For the sake of improving the controlled at real-time and the reaction rate of accepter for data, at the condition of Windows XP, the serial communication between signal PC and multistation of sensors was realized and the data collected by each sensor can be got at real time.

在实时加速度测试系统中，数据需要从测试仪传送到主机上，为了提高控制的实时性及接受端对数据的反应速度，利用VC++7.0下的Active控件和RS-232串行接口，实现了在Windows XP环境下，单台PC机与多台传感器的串行通信，并能实时获取各传感器的数据采集。

Wavelet multi-scale analysis is applied to the research on lunar gravity field and the explanation of lunar inner structure. In this paper, the nearside of the Moon with higher quality data is chosen as the test area, and free air gravity data from "Clementine" mission are used as original data to decompose gravity of some specific mare basins. With the results of numerical test, we also explain the hierarchical structure of the Moon, analyze the thickness of mare fillings and the Moho topography under mare basins, and verify the results by comparisons.

本文将小波多尺度分析引入月球重力场的研究，选取测量数据质量较好的月球近区作为实验区域，以"Clementine"探测器获得的自由空气重力异常作为原始数据对主要月海盆地进行了局部的重力异常分解，解释了月球内部基本分层结构，并利用主要月海盆地的实验结果分析了月海下部质量异常以及莫霍面的起伏形态，与已有研究成果进行比较证明了方法的适用性及结果的合理性。

For the lack of return data in the first stage, the GM(1,1) model improving the generation method of neighborhood system is adopted, and forecasting is carried out by only using a few data. When the data amount reaches 50, the hidden quantitative relationship between sale quantity and return quantity is established by performing the transfer function-noise model. Its parameters are determined through model identification, parameters estimation and diagnostic checking. Then, forecasting return is accomplished.

回收初期数据缺乏，采用改进邻域系生成方法的GM(1，1)模型，实现了少量数据情况下的预测；回收数据累积到50个后，利用传递函数噪声模型构建了回收量和前期销售量之间的内在数量关系式，然后通过模型识别、参数估计、诊断检验确定了关系式的具体参数，进而实现了回收预测。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。