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2009 IEEE AUTOTESTCON最新文献

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Managing evolving hardware and software requirements 管理不断发展的硬件和软件需求
Pub Date : 2009-11-06 DOI: 10.1109/AUTEST.2009.5314031
S. O'Donnell, A. Zarcone
Lockheed Martin Simulation, Training and Support (LM-STS) has designed and fielded the LM-STAR® family of test systems to numerous customers to meet their production delivery schedules. The LM-STAR systems test avionics and other electronic systems and subsystems in factories and depots on multiple U.S. and International platforms supplying the end user with accurate fault diagnostics to repair Units Under Test (UUT). Galileo Avionica has acquired an LM-STAR system for their production facility and have successfully rehosted legacy Test Program Sets (TPS) from the Consolidated Automated Support System (CASS) to LM-STAR. Galileo Avionica needed a new variant of LM-STAR to support the unique new requirements of their customer. The system needed to be expandable and flexible to meet these needs, and system performance had to be optimized for high speed synchronous/asynchronous data I/O. The new configuration posed many technological challenges from both a hardware and software standpoint that had to be overcome. An aggressive schedule coupled with limited budget presented obstacles. The project also had dynamic test requirements. This paper will describe how a project can still meet time-to-market, cost, and quality objectives while addressing a myriad of requirement changes without spiraling out of control.
洛·马仿真、培训和支持(LM-STS)公司为众多客户设计并部署了LM-STAR®系列测试系统,以满足其生产交付时间表。LM-STAR系统在多个美国和国际平台的工厂和仓库中测试航空电子设备和其他电子系统及子系统,为最终用户提供准确的故障诊断,以修复被测单元(UUT)。伽利略航空公司已经为其生产设施获得了LM-STAR系统,并成功地将传统的测试程序集(TPS)从综合自动化支持系统(CASS)重新托管到LM-STAR上。伽利略航空公司需要LM-STAR的新版本来支持其客户的独特新要求。为了满足这些需求,系统需要具有可扩展性和灵活性,并且必须针对高速同步/异步数据I/O优化系统性能。从硬件和软件的角度来看,新的配置提出了许多必须克服的技术挑战。激进的时间表加上有限的预算构成了障碍。该项目也有动态测试需求。本文将描述一个项目如何在处理大量需求变化的同时仍然能够满足上市时间、成本和质量目标,而不会失控。
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引用次数: 4
Applying software engineering practices to produce reliable, high-quality and accurate automated test systems 应用软件工程实践来生产可靠、高质量和准确的自动化测试系统
Pub Date : 2009-11-06 DOI: 10.1109/AUTEST.2009.5314054
Elijah Kerry, S. Delgado
Test engineers developing test systems for mission-critical applications have to prove that the test system is reliable and accurate. As a result, software engineering practices are becoming increasingly important in order to mitigate any risk of failure that could result in costly downtime, incorrect behavior, or safety failures.
为关键任务应用开发测试系统的测试工程师必须证明测试系统的可靠性和准确性。因此,软件工程实践变得越来越重要,以减轻任何可能导致代价高昂的停机时间、不正确的行为或安全故障的失败风险。
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引用次数: 7
The Simplified TPS Encoding Process 简化的TPS编码过程
Pub Date : 2009-11-06 DOI: 10.1109/AUTEST.2009.5314053
Ngai Nguyen, Jacob Spencer, Mark Oblander, N. Herbert, Casey Bynum
The process of TPS development is an increasingly complicated endeavor. As Units Under Test become more and more complex, a greater investment of time for analysis and simulation is required than ever before. Additionally, traditional TPS software development environments are monolithic, necessitating costly training time for the engineer to learn the environment as well as forcing tedious and difficult development interfaces on the engineer. The Simplified TPS Encoding Process (STEP), developed by the 76 SMXG at Tinker AFB, is a novel process for the development of TPSs that removes dependency on specific programming languages from the TPS engineer. STEP reduces the up-front time required to train new engineers and provides the TPS engineer with an easy-to-use development environment that can be modularly extended to work with any programming language or hardware interface. In addition, STEP uses plain text files to contain program code and store data results. The ease-of-use, modularity, and plain text source code provided by STEP result in the TPS engineer spending more time analyzing the Unit Under Test instead of spending that time struggling to develop in a particular programming language.
TPS的发展过程是一个越来越复杂的过程。随着被测单元变得越来越复杂,分析和模拟所需的时间比以往任何时候都要多。此外,传统的TPS软件开发环境是单一的,需要工程师花费昂贵的培训时间来学习环境,并迫使工程师使用繁琐而困难的开发接口。由Tinker AFB的76 SMXG开发的简化TPS编码过程(STEP)是TPS开发的一种新过程,它消除了TPS工程师对特定编程语言的依赖。STEP减少了培训新工程师所需的前期时间,并为TPS工程师提供了一个易于使用的开发环境,可以模块化地扩展到任何编程语言或硬件接口。此外,STEP使用纯文本文件来包含程序代码和存储数据结果。STEP提供的易用性、模块化和纯文本源代码导致TPS工程师花费更多时间分析被测单元,而不是花费时间用特定的编程语言进行开发。
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引用次数: 0
Advanced waveform generation techniques for ATE 先进的ATE波形生成技术
Pub Date : 2009-11-06 DOI: 10.1109/AUTEST.2009.5314045
C. Ziomek, E. S. Jones
Comprehensive waveform generation is an important functional component of automated test equipment (ATE). Waveform generators synthesize signal stimuli to be applied to a device under test (DUT). As military and commercial electronics become increasingly complex, more sophisticated signal stimuli are required. ATE requires signal stimuli varying from advanced communication signals to the playback of captured real-world analog signals. Waveform generators can synthesize signals that can be broadly categorized into four types: standard functions, advanced functions, arbitrary waveforms, and waveform sequences. Standard functions include the simple sine, square, triangle, pulse, and ramp waveforms. Advanced functions include complex signals such as multi-tone, AM, FM, sinc pulse, haversine, half-cycle sine, Gaussian pulse, Lorentz pulse, noise and others. Arbitrary waveforms involve the point-by-point user-defined waveform synthesis. Waveform sequences provide a mechanism to piece together standard or arbitrary waveforms in stages to create a user-defined compound waveform. Example applications for each of these four waveform categories are described in this paper. Modern waveform generators are extremely powerful, but can also add significant complexity for the user. The arbitrary waveform generator, an instrument found in most ATE systems, is a very powerful signal synthesis tool. Unfortunately, many users take advantage of only a small fraction of the powerful features available to them in an arbitrary waveform generator. Also, selecting the right arbitrary waveform generator can be daunting when comparing specifications such as DAC resolution, clock rates and topology, memory depth, sequencing, sweeping, triggering and synchronization. This paper describes the technical differences between various signal generation techniques, presents the signal fidelity impact of clock topology, discusses dynamic range limitations due to noise, accuracy and resolution, and provides typical applications to illustrate signal generation usage. Ultimately, this information should help the user avoid common pitfalls in applying waveform generators within ATE.
综合波形生成是自动化测试设备的重要功能组成部分。波形发生器合成用于被测设备(DUT)的信号刺激。随着军事和商业电子变得越来越复杂,需要更复杂的信号刺激。ATE需要各种信号刺激,从高级通信信号到捕获的真实世界模拟信号的回放。波形发生器可以合成的信号大致可以分为四种类型:标准函数、高级函数、任意波形和波形序列。标准函数包括简单的正弦,方形,三角形,脉冲和斜坡波形。高级功能包括复杂信号,如多音,AM, FM,正弦脉冲,哈弗辛,半周正弦,高斯脉冲,洛伦兹脉冲,噪声等。任意波形包括逐点用户定义的波形合成。波形序列提供了一种机制,将标准或任意波形分阶段拼接在一起,以创建用户定义的复合波形。本文描述了这四种波形类别中的每一种的示例应用。现代波形发生器非常强大,但也可能为用户增加显著的复杂性。任意波形发生器是一种非常强大的信号合成工具,在大多数ATE系统中都可以找到。不幸的是,许多用户只利用了任意波形发生器中可用功能的一小部分。此外,在比较DAC分辨率、时钟速率和拓扑结构、内存深度、排序、扫描、触发和同步等规格时,选择合适的任意波形发生器可能会令人望而生畏。本文描述了各种信号生成技术之间的技术差异,介绍了时钟拓扑对信号保真度的影响,讨论了噪声、精度和分辨率对动态范围的限制,并提供了典型的应用来说明信号生成的使用。最终,这些信息将帮助用户避免在ATE中应用波形发生器时的常见缺陷。
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引用次数: 7
RF Channel Simulators enhance communication system quality and decrease costs 射频信道模拟器提高了通信系统的质量,降低了成本
Pub Date : 2009-11-06 DOI: 10.1109/AUTEST.2009.5314044
S. Williams
The Radio Frequency (RF) Channel Simulator is rapidly emerging as a standard test and measurement instrument for RF communication systems, since it is capable of easily generating RF signals that that precisely duplicate those between transmitters and receivers that when deployed, will be in motion with respect to one another.
射频(RF)信道模拟器正迅速成为射频通信系统的标准测试和测量仪器,因为它能够很容易地产生射频信号,精确地复制发射器和接收器之间的信号,当部署时,它们将彼此相对运动。
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引用次数: 2
Test diagram generation: A practical application of the ATML standards 测试图生成:ATML标准的实际应用
Pub Date : 2009-11-06 DOI: 10.1109/AUTEST.2009.5314064
Ron Taylor
The IEEE Automatic Test Markup Language (ATML) family of standards allows Automatic Test System (ATS) and test information to be exchanged in a common format adhering to the Extensible Markup Language (XML) standard. Now that the standards have been published, through the IEEE SCC20, the next key step is the incorporation of these standards on actual ATS programs. The DoD ATS Framework Working Group (FWG) is participating in the Phase II ATML Interoperability Demonstration effort to provide practical applications of these standards to promote their use on current and future programs. This paper examines one aspect of the ATML demonstration which is the use of the ATML standards in the generation of test diagrams to support Test Program Sets (TPSs).
IEEE自动测试标记语言(ATML)系列标准允许自动测试系统(ATS)和测试信息以遵循可扩展标记语言(XML)标准的通用格式进行交换。现在这些标准已经通过IEEE SCC20发布,下一个关键步骤是将这些标准纳入实际的ATS程序。国防部ATS框架工作组(FWG)正在参与第二阶段的ATML互操作性演示工作,提供这些标准的实际应用,以促进其在当前和未来项目中的使用。本文研究了ATML演示的一个方面,即在生成测试图以支持测试程序集(tps)时使用ATML标准。
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引用次数: 2
Implementing IEEE 1641 - compilation techniques (to IVI driver code) 实现IEEE 1641 -编译技术(到IVI驱动代码)
Pub Date : 2009-11-06 DOI: 10.1109/AUTEST.2009.5314001
M. Cornish
Drawing on a recent study, sponsored by the UK MoD, this paper provides details of a compile-time approach to the implementation of an IEEE Std. 1641™ [1] test program (in contrast to previous implementations, which have adopted a run-time approach). Consideration is given to methods for capability description of test resources, through IEEE ATML [2]. In addition, comparison is made with the general run-time approach [3], in terms of portability and validation. As a detailed view of this particular aspect of a 1641 implementation, this paper incorporates the example tests; Gain and 1 dB Compression Point, for a mobile communications device. These tests are defined using the Standard's Test Signal Framework (TSF); test programs are produced using the TSFs in the C# carrier language; IEEE ATML Test Station and Instrument Description are created and used to determine suitable test resources; and, an XML document is created and used to create a translation from the IEEE 1641 & TSF defined test instructions to the test resources' IVI driver calls; this process effectively ‘compiling’ the C#, IEEE 1641 test program into an IVI test program (in this case, the native driver framework for the test platform).
根据最近由英国国防部赞助的一项研究,本文提供了实现IEEE Std. 1641™[1]测试程序的编译时方法的细节(与以前采用运行时方法的实现形成对比)。考虑了通过IEEE ATML[2]对测试资源进行能力描述的方法。此外,还在可移植性和验证性方面与通用运行时方法[3]进行了比较。作为1641实现的这一特定方面的详细视图,本文包含了示例测试;增益和1db压缩点,用于移动通信设备。这些测试是使用标准的测试信号框架(TSF)定义的;使用c#载体语言的tsf生成测试程序;创建IEEE ATML测试站和仪器描述,用于确定合适的测试资源;并且,创建一个XML文档,并用于创建从IEEE 1641和TSF定义的测试指令到测试资源的IVI驱动程序调用的转换;这个过程有效地将c#, IEEE 1641测试程序“编译”为IVI测试程序(在这种情况下,测试平台的本机驱动程序框架)。
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引用次数: 2
An innovative approach in the design of fast-switching microwave synthesizers 一种设计快速开关微波合成器的创新方法
Pub Date : 2009-11-06 DOI: 10.1109/AUTEST.2009.5314016
A. Chenakin, S. Ojha, Iqbal Sihra
This paper presents a compact, broadband frequency synthesizer module, which covers 0.1 to 10 GHz frequency range with a 0.001 Hz step size. The synthesizer combines fast switching speed, low phase noise, and low spurious characteristics. The measured phase noise at an output frequency of 10 GHz and 10 kHz offset is −122 dBc/Hz. For an output frequency of 0.1 GHz and 10 kHz offset the phase noise is −150 dBc/Hz. Spurs do not exceed the −70 dBc level and the switching time of the main PLL is less than 10 uSec. This module can be used as a broadband, agile, high-fidelity signal source in a variety of test-and-measurement, communication, and surveillance systems.
本文提出了一种紧凑的宽带频率合成器模块,其覆盖0.1至10 GHz频率范围,步长为0.001 Hz。合成器结合了快速开关速度,低相位噪声和低杂散特性。输出频率为10ghz,偏移量为10khz时的相位噪声为- 122 dBc/Hz。当输出频率为0.1 GHz,偏移量为10khz时,相位噪声为- 150dbc /Hz。杂散不超过−70dbc,主锁相环的开关时间小于10usec。该模块可作为宽带、敏捷、高保真的信号源应用于各种测试测量、通信和监控系统中。
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引用次数: 3
Information support for integrative analytical approaches for Health Management application development and maturation 为健康管理应用程序开发和成熟的综合分析方法提供信息支持
Pub Date : 2009-11-06 DOI: 10.1109/AUTEST.2009.5314065
T. Wilmering, David A. Van Rossum
Development of information systems for the Systems Health Management domain are typically concerned with data collection assets, such as customer data systems or on-platform data recording devices, or the need for data warehouses to integrate copies of data from these sources. We propose that there exists a significant capability gap in this area — there is a need in the Health Management domain to manage information in support of engineering research and analysis, going well beyond the scope of typical decision support systems and data warehouses. This paper will explore this need within the context of the development and maturation of Health Management (HM) analytical processes and application development. We will examine the issues associated with aggregating, integrating, and mining information of the sort needed to support HM processes and suggest an evolutionary approach to improving the current means by which information support is provided.
system Health Management领域的信息系统开发通常涉及数据收集资产,例如客户数据系统或平台上的数据记录设备,或者需要数据仓库来集成来自这些源的数据副本。我们认为在这一领域存在着显著的能力差距——健康管理领域需要管理支持工程研究和分析的信息,这远远超出了典型的决策支持系统和数据仓库的范围。本文将在健康管理(HM)分析过程和应用开发的发展和成熟的背景下探讨这一需求。我们将研究与支持HM流程所需的信息的聚合、集成和挖掘相关的问题,并提出一种改进当前提供信息支持的方法。
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引用次数: 0
A knowledge-based test program following the ATML standard 一个基于知识的测试程序,遵循ATML标准
Pub Date : 2009-11-06 DOI: 10.1109/AUTEST.2009.5314090
A. Pirker-Fruhauf
Developing test programs for taking measurements on different test systems is still a common procedure within the IC verification process. The complexity of a test program is strongly related to the complexity of ICs and test systems. These test programs usually are non-modular and maintenance is time-consuming. Test programs based on ATML standard [1] have to perform special tasks like parsing XML (Extensible Markup Language) documents, resource allocation, resource mapping, etc. On the other hand, these prerequisites increase modularity and flexibility of the test program. This paper introduces a knowledge-based test program following the ATML standard implemented within LabVIEW [2]. The developed test program can be used for any test system. This helps saving time considering programming effort and improving the verification process.
开发测试程序,在不同的测试系统上进行测量仍然是集成电路验证过程中的一个常见程序。测试程序的复杂性与集成电路和测试系统的复杂性密切相关。这些测试程序通常是非模块化的,维护非常耗时。基于ATML标准[1]的测试程序必须执行特殊的任务,如解析XML(可扩展标记语言)文档、资源分配、资源映射等。另一方面,这些先决条件增加了测试程序的模块化和灵活性。本文介绍了在labview[2]中实现的一个遵循ATML标准的基于知识的测试程序。所开发的测试程序可用于任何测试系统。这有助于节省考虑编程工作和改进验证过程的时间。
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引用次数: 2
期刊
2009 IEEE AUTOTESTCON
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