面向WCDMA建立网络管理信息模型

分析了WCDMA移动通信网网管系统管理框架，在此基础上提出采用公共对象请求代理体系结构（CORBA）建立网管系统信息模型的优势，给出WCDMA网管系统的信息模型，同时介绍了对象管理组（OMG）接口描述语言（IDL）。     

CORBA与DCOM桥接设计与实现

DCOM与CORBA是目前广泛使用的分布式技术,在开发大型的企业级分布式应用系统时,优先考虑使用的分布式技术就是DCOM或CORBA这两种中间件技术。有时一个系统需要同时使用DCOM与CORBA。由于这两者在具体的技术实现上有较大差别,使得它们在跨平台的互联时,不能直接实现DCOM与CORBA的互访。因此,如何实现系统中DCOM与CORBA直接通信成为一个关键问题。提出了一种实现DCOM和CORBA通信的桥接框架,是一种"动态桥",所需的桥接口可以随时添加到桥里,它解决了DCOM和CORBA之间不能通信的问题。     

基于IDL的红外探测器数据采集与处理系统设计

为了得到红外探测器探测到的图像信息,设计了红外探测器的数据采集与处理系统.根据红外探测器的数据格式,利用IDL设计了数据采集程序;利用红外探测器定标方式,把探测器输出量转换成目标物体的辐射量;把辐射量换算成图像灰度值,生成了原始的红外图像,实现了红外探测器数据的可视化,为红外探测器的应用提供了方便.实验结果表明:数据采...     

Development of a pit filling algorithm for LiDAR canopy height models

LiDAR canopy height models (CHMs) can exhibit unnatural looking holes or pits, i.e., pixels with a much lower digital number than their immediate neighbors. These artifacts may be caused by a combination of factors, from data acquisition to post-processing, that not only result in a noisy appearance to the CHM but may also limit semi-automated tree-crown delineation and lead to errors in biomass estimates. We present a highly effective semi-automated pit filling algorithm that interactively detects data pits based on a simple user-defined threshold, and then fills them with a value derived from their neighborhood. We briefly describe this algorithm and its graphical user interface, and show its result in a LiDAR CHM populated with data pits. This method can be rapidly applied to any CHM with minimal user interaction. Visualization confirms that our method effectively and quickly removes data pits.     

Comparison between Two Spectral Mixture Analysis Methods based on IDL and MATLAB

Interactive Data Language (IDL) is a language in the development of application based on multiplatform and object\|oriented,which has significant advantages in data analysis and visualization.The MATLAB is a software with powerful features in the image of processing and programming in complex numerical analysis,which based on matrix calculation.Programming in combining the IDL with MATLAB,meanwhile using the Extended Linear Mixed Model for endmember unmixing in Hyperion images.To verify the results of endmember unmixing,adopted the Fully Constrained Least Squares for comparative analysis.The results showed that：The method of programming in combining the IDL with MATLAB not noly possess the advantages of both but also enhance the efficiency in programming,it is conducive to remote sensing image processing.Meanwhile endmember unmixing results show that：the Extended Linear Mixing Model unmixing has a higher accuracy when the proportion of local category in the image is large.On the contrary,the Fully Constrained Least Squares unmixing has a higher accuracy.     

CORBA动态测试工具设计

在网络管理系统中CORBA技术被广泛应用在北向接口模块中,在测试这类模块时通常会针对不同的规范开发专门的测试程序,费时费力,且没有通用性。该文介绍了一个基于idl语法分析的动态测试工具,可动态测试不同规范的CORBA接口,大大提高了生产效率。     

IDL与VisualC／C＋＋语言进行混合编程的方法研究

介绍将VisualC／C＋＋和IDL语言的诸多特点相互结合、相互补充以进行应用程序开发的技术,并用简单、代表性的实例程序进行验证。实践证明,在共享目标库机制上实现IDL与VisualC/C＋＋的混合编程技术,可以实现两种语言的资源和功能共享,达到优势互补。     

一种基于多Agent的视频监控系统模型

在局域网多点视频监控系统中，当监控点和用户增加时视频数据在网络上的传播量会大大增加，将导致网络带宽严重不足，无法保证用户的QoS。该文针对此问题提出了基于多Agent的视频监控系统模型——MPMU(MultiPoint MultiUser)，用IDL(Interface Definition Language)对模型进行了描述，并在此模型中实现了QoS协商、重协商和基于MPEG—1数据流的丢帧机制。实验结果表明，此模型可以满足多监控点和多用户的需求。     

基于CORBA的三层结构管理信息系统的原理及实现

研究了基于CORBA的实现管理信息系统的新方法,并对其实现方法、体系结构和关键技术进行了探讨。     

基于VC与IDL混合编程的数据可视化系统

针对EAST实验需要,设计了等离子体放电位形可视化系统。该系统采用VC与IDL混合编程模式实现,将VC友好人机界面等优势和IDL强大的数据分析可视化功能完美结合。实验结果证明了VC与IDL混合编程在等离子体物理实验数据分析及可视化应用的可行性和高效性。