ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada / The Joint Mission Environment Test Capability (JMETC) is a distributed live, virtual, and constructive (LVC) testing capability developed to support the acquisition community and to demonstrate Net-Ready Key Performance Parameters (KPP) requirements in a customer-specific Joint Mission Environment (JME). JMETC provides connectivity to the Services’ distributed test capabilities and simulations, as well as industry test resources. JMETC uses the Test and Training Enabling Architecture, TENA, which is well-designed for supporting JMETC events. TENA provides the architecture and software capabilities necessary to enable interoperability among range instrumentation systems, facilities, and simulations. TENA, used in major field exercises and numerous distributed test events, provides JMETC with a technology already being deployed in DoD.

International Telemetering Conference Proceedings / October 26-29, 1992 / Town and Country Hotel and Convention Center, San Diego, California / In the event of a NASA Space Shuttle mission landing at the While Sands Missile Range, White Sands, New Mexico, a data communications system for processing Shuttle’s telemetry data has been installed there in the Master Control Telemetry Station, JIG-56. This data system required a Viterbi decoder since the Shuttle’s data is convolutionally encoded. However, the Shuttle uses a nonstandard code, and the manufacturer which in the past has provided decoders for Shuttle support, no longer produces them. Since no other company produced a Viterbi decoder designed to decode the shuttle’s data, it was necessary to develop the required decoder. The purpose of this paper is to describe the functional performance requirements and design of this decoder.

International Telemetering Conference Proceedings / October 27-30, 1997 / Riviera Hotel and Convention Center, Las Vegas, Nevada / This paper analyzes the performance of an M-ary spread spectrum system with orthogonal codes. A new scheme of M-ary spread spectrum communication with phase shifted msequence is proposed, and the method to implement code synchronization in the scheme is given. The performance of the new scheme is analyzed, and compared to conventional spread spectrum systems and orthogonal code M-ary systems. The results show that stronger anti-interference ability, and better data transmission efficiency, and lower complexity is achieved in the system employing phase shifted m-sequence.

Although there have been a large number of studies on the use of L1 and L2, there seem to be few on L1 use in Chinese university EFL classrooms, especially investigating the language use of those who teach English to students at different proficiency levels or teach different types of English courses. This thesis aims to analyze four Chinese EFL teachers’ actual use of L1 and L2, to understand their attitudes and beliefs regarding this issue, and their own perceptions of and reasons for their language use, and to explore possible influencing factors. The reading-and-writing lessons and the listening-and-speaking lessons of these four teachers, who were teaching non-English major students at four different levels, were observed and recorded. All the observed lessons were subjected to quantitative analysis with the aim of providing a clear picture of the distribution of their L1 and L2 use. Some episodes selected from these lessons were subjected to further detailed analysis, in order to provide an account of the circumstances, functions, and grammatical patterns of their language use, as well as their language use across different frames of classroom discourse. The teachers were interviewed subsequently about their general beliefs on the use of L1 in L2 teaching and learning. Separately, in a stimulated recall interview, they were invited to provide comments specifically on their language use in the selected episodes that were replayed to them. The quantitative findings show that the amount of the teachers’ L1 use was not necessarily closely related to their students’ English proficiency levels, although the teacher of the students at the lowest level used the highest amount of Chinese in her lessons. However, a noteworthy finding was that all four teachers used more Chinese in the reading-and-writing lessons than in the listening-and-speaking lessons, although with substantial individual variation. The qualitative analysis of classroom data indicates that these teachers switched often at unit boundaries, but rarely at clause boundaries. They also switched frequently within units, especially within noun phrases, and the ‘Chinese determiner + English noun’ pattern is the main one they had in common. Furthermore, the teachers used Chinese as the matrix language in their mixed utterances in most cases, and these mixed utterances nearly always fitted Myers-Scotton’s Morpheme Order principle and System Morpheme principle. The teachers were also found to use Chinese in a variety of circumstances, such as talking about lesson plans or examinations, dealing with exercises, analyzing text, teaching vocabulary, checking the students’ comprehension or retention, giving the students advice on learning, telling anecdotes and assigning homework. The functions for which they used Chinese could be divided into four main categories: facilitating developing lesson content; supporting students and carrying out classroom management; delivering information related to teaching agenda or examinations; and facilitating communication beyond language learning and teaching. The most frequent function common to all four teachers was translation. Furthermore, the study used four different ‘frames’ to analyze classroom discourse, and found that the teachers used the L1 with varying frequency across these frames. Moreover, although all four teachers believed that using the L1 was beneficial to L2 learning, their attitudes towards the medium of instruction were different. While two advocated using the L1, the other two expressed a preference for speaking English-only and perceived their L1 use as a compromise or an expedient. The teachers reported many reasons for their L1 use. The factors that affected their language use consisted of both immediate classroom factors, such as functions of utterances, students’ language use, students’ perceived mood, students’ background knowledge, the difficulty of lesson content, time limitations, teachers’ awareness of their own L1 use, and teachers’ state of mind at a particular moment in a lesson, and relatively static factors, such as the university policy, students’ L2 abilities, teaching objectives, teachers’ beliefs regarding L1 use, and teachers’ L2 abilities. Through its detailed analysis of the teachers’ language use, as well as their relevant beliefs and decision-making, this thesis hopes to make a contribution to L2 teachers’ professional development and L2 teaching, especially in helping to establish a pedagogically principled approach to L1 and L2 use.

Traditionally, language policy (LP) has been conceptualised as a notion separate from that of practice. That is, language practices have usually been studied with a view to evaluate the extent to which a LP is (or is not) implemented (e.g. Martin, 2005; Johnson, 2009). Recently, however, Spolsky (2004, 2007, 2008a) has argued that policy and practice need not be seen as distinct and that, in fact, there is policy in language practices themselves (I use the term ‘practiced language policy’). Therefore, Spolsky’s claim represents a decisive development in the field of LP research. However, this proposal remains essentially programmatic since Spolsky does not indicate how practiced language policies can be investigated. The aim of this thesis is to address this methodological gap. The main claim of the thesis is that Conversation Analysis (CA) – a method specifically developed to describe conversational practices – can be used to investigate practiced language policies. In order to support this claim, a case study has been conducted on the language practices of an induction classroom for newly-arrived immigrant children in France. In the thesis, a broad view of CA is adopted, incorporating both sequential and categorisation analysis (Membership Categorisation Analysis). More specifically, I have used the conversation analytic approach to code-switching (as developed over the last few years by researchers such as Auer, 1984; Li Wei, 2002; Gafaranga, 2009; Bonacina and Gafaranga, 2010) and investigated a corpus of audio-recorded classroom interactions I collected in the above mentioned setting. Observation of these interactions revealed a number of “norms of interaction” (Hymes, 1972) the classroom participants orient to in order to go about the routine business of talking in an orderly fashion. For example, it was observed that each of the languages available can potentially be adopted as the “medium of classroom interaction” (Bonacina and Gafaranga, 2010) depending on who is doing being the language teacher. When no one is doing being the language teacher, it was observed, a key determinant of language choice is participants’ language preference. Finally, in the absence of any shared preferred language, French was adopted. The practiced language policy of this induction classroom consists of the set of such interactional norms. It is because CA can be used to discover and describe such interactional norms that this thesis claims it can be used to investigate practiced language policies in this induction classroom and in other settings as well. In summary, this thesis is primarily a contribution to the field of LP research. It starts from recent proposals in the field, especially by Spolsky (2004, 2007, 2008a), that there is policy in practices and shows how this programmatically formulated proposal can be implemented. More specifically the thesis shows that and how CA can be used to discover a practiced language policy. The research reported here has adopted a case study methodology, investigating language choice practices in a multilingual educational setting. It therefore contributes to the study of bilingual classroom talk, albeit indirectly. This is particularly the case as there has been very few, if any, studies of bilingual classroom talk which combine both sequential and categorisation analysis.

International Telemetering Conference Proceedings / October 30-November 02, 1989 / Town & Country Hotel & Convention Center, San Diego, California / Aydin Vector Division has developed and manufactured an airborne, high shock, wideband FM/FM telemetry system for Saab Missiles AB in Sweden. This system was presented in the ITC Proceedings of 1988, Volume XXIV, pp 71-84 (Ref [1]). Three such systems were supplied. Saab Missiles AB also awarded Aydin Vector Division with an additional order for a larger number of high shock, computer based, specially designed, miniature PCM/FM airborne telemetry systems. These systems were developed, manufactured and supplied to Saab Missiles AB, and have been extensively and successfully used in the Swedish program. The PCM/FM telemetry package described in this paper was used for the system testing and the firing trials program of a mortar projectile, where the measurement requirements included micro processor interfaces, as well as a high amount of analog and bi-level data channels. The paper covers the specifications of the PCM/FM system mentioned above, the concept that was used to meet these specifications, the system’s mechanical and electrical design, the packaging technique and some of the test results.

International Telemetering Conference Proceedings / October 29-November 02, 1990 / Riviera Hotel and Convention Center, Las Vegas, Nevada / The new generation of advanced tactical aircraft and missiles places unique demands on the electronic and mechanical designs for flight test instrumentation, high bit rates, operating temperature range and system interconnect wiring requirements. This paper describes a microminiature PCM distributed data acquisition system with integral signal conditioning (MMSC) which has been used in advanced aircraft and missile flight testing. The MMSC system is constructed from microminiature, stackable modules which allow the user to reconfigure the system as the requirements change. A second system is also described which uses the same circuitry in hermetic hybrid packages on plug-in circuit boards.

International Telemetering Conference Proceedings / October 28-31, 1996 / Town and Country Hotel and Convention Center, San Diego, California / This paper describes some of the signal conditioning and processing circuits that were developed to reconstruct the doppler video signal from a radar receiver under test. The reconstructed doppler video signal is then digitized and put into a telemetry frame for transmission to a ground receiving station.

International Telemetering Conference Proceedings / October 22-25, 2001 / Riviera Hotel and Convention Center, Las Vegas, Nevada / This paper describes techniques on the microwave FM locked in phase of transmitters in the reentry telemetry system. A few scheme configurations on the microwave FM locked in phase, its circuit characteristics and applications are analyzed. Research results show that the two-point injection microwave FM locked in phase is suitable for the telemetry system, which code rate is higher, band of wide, and modulation response very well.

Eine wichtige Aufgabe bei der Softwareentwicklung ist das Auffinden von Fehlern und das Verstehen ihrer Ursachen. Zur Unterstützung dieser Aufgabe gibt es zahlreiche De-bugger. Bei der Nutzung von Softwaregeneratoren benötigt man zum Debuggen spezielle Informationen. In dieser Arbeit werden Anforderungen an einen Debugger für Software-generatoren definiert. Dazu werden zunächst strukturell ähnliche Softwaregeneratoren auf ihre Debugger untersucht und grundsätzliche Debuggertypen identifiziert. Aus diesen werden 15 Anforderungen formuliert, die der hier beispielhaft betrachtete Softwaregener-ator erfüllen soll. Anschließend erfolgen eine Verallgemeinerung der Ergebnisse und eine kurze Diskussion der Umsetzung auf der Plattform JetBrains MPS.