Edwards Air Force Base, United States
Edwards Air Force Base, United States
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Morgan J.,JT3 LLC | Jones C.H.,412TENG ENI
Proceedings of the International Telemetering Conference | Year: 2014

One of the initial control room capabilities to be demonstrated by iNET program is the ability to provide data displays in the control room that do not contain data dropouts. This concept is called PCM Backfill where PCM data is both transmitted via traditional SST and recorded onboard via an iNET compatible recorder. When data dropouts occur, data requests are made over the telemetry network to the recorder for the missing portions of the PCM data stream. The retrieved data is sent over the telemetry network to the backfill application and ultimately delivered to a pristine data display. The integration of traditional SST and the PCM Backfill capability provides both real-time safety of flight data side-by-side with pristine data suitable for advanced analysis.

Andersen S.,University of Nevada, Las Vegas | Andersen S.,JT3 LLC | Schill R.A.,University of Nevada, Las Vegas
IEEE Transactions on Plasma Science | Year: 2015

A simple nonlinear theory is developed to examine the process of electron channeling and constriction for an energetic electron beam passing through a cool thermalized plasma discharge. A number of different perturbations characterize and categorize the physical process of the three-fluid system. In this model, the electron species is separated into two different species of the same type but with very different initial particle states. A normalized set of curves parameterize the conditions most probable leading to electron channeling and pinch (beam constriction) in a pulsed power glow discharge. The theory suggests that energetic secondary electron emission at the cathode is responsible for glow discharge constriction in a pulsed power discharge. © 2015 IEEE.

Hamilton J.,Knowledge Based Systems, Inc. | Darr T.,Knowledge Based Systems, Inc. | Fernandes R.,Knowledge Based Systems, Inc. | Jones D.,Knowledge Based Systems, Inc. | Morgan J.,JT3 LLC
Proceedings of the International Telemetering Conference | Year: 2015

This paper describes a method in which users realize the benefits of a standards-based method for capturing and evaluating verification and validation (V&V) rules within and across metadata instance documents. The method uses a natural language based syntax for the T&E metadata V&V rule set in order to abstract the highly technical rule languages to a domain-specific syntax. As a result, the domain expert can easily specify, validate and manage the specification and validation of the rules themselves. Our approach is very flexible in that under the hood, the method automatically translates rules to a host of target rule languages. We validated our method in a multi-vendor scenario involving Metadata Description Language (MDL) and Instrumentation Hardware Abstraction Language (IHAL) instance documents, user constraints, and domain constraints. The rules are captured in natural language, and used to perform V&V within a single metadata instance document and across multiple metadata instance documents.

Moskal J.,VIStology, Inc | Kokar M.,VIStology, Inc | Morgan J.,JT3 LLC
Proceedings of the International Telemetering Conference | Year: 2015

It is anticipated that XML will heavily dominate the next generation of telemetry systems. The syntax of XML-based languages can be constrained by a schema that describes the structure of valid documents. However, the schemas cannot express all dependencies between XML elements and attributes, both within a single document and across multiple documents. This prohibits the XML validation process from being fully automated with standard schema processors. This paper presents an approach that is based on the W3C Semantic Web technologies and allows different vendors and system integrators to independently develop their own semantic validation rules. The rules are equipped with powerful semantics, which allows for specification and validation of complex types of constraints. The approach is not specific to a particular T&E standard and is entirely standards-based.

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