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White Papers

Implementation of AESA Technology for High-Target Dynamic Telemetry Ground Antennas

This paper describes the implementation of AESA technology for telemetry ground antennas. Telemetry ground antennas play a key role in the functioning of telemetry systems, by receiving the data transmitted by the system and sending it to a ground station for analysis and processing. The use of AESA technology allows for more precise...
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2023

VLab
Enhanced Video &
Data Pre-Processing

In today's Flight Test Instrumentation (FTI) video telemetry applications, parallel video channels of the same video signal are acquired with the on-board data recorder. One is typically a high-quality video channel that is recorded directly in the recorder and the other is typically a reduced bit rate channel for real-time telemetry downlink...
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2023

Telemetry Quality & Efficiency Improvement by Multi-Location, Centrally Controlled, Ground Stations

Expanding the area where telemetry can be received on a range is the expectation of any range operator. Adding receiving ground station (receiver & antennas) in different locations not only allows to expand the area but also improve the quality and efficiency of data reception by having visibility of the flying target from multiple angles...
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2023

How to Reconcile COTS Components and Tailored Future-Proof Data Acquisition System in Flight Test Instrumentation

During decades, FTI (Flight Test Instrumentation) systems were based on home-made or build-to-spec designs to address the specificities of each test article and the habits of each instrumentation engineers. However, thanks to decades of standardization efforts, the flight test community progressively took benefits of the interoperability...
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2023

Paving the Way to Wireless Fiber Optic Sensing Applied to Helicopter Rotor Blade Instrumentation and Monitoring

Between 2018 and 2021, Airbus Helicopters and Safran Data Systems have conducted an innovation project called HIRIS in the frame of a European project aiming at developing a new wireless technology for helicopter rotor instrumentation and included operational Flight Tests on the field during 10 months and 60h flight hours. In the meantime, the interest for Fiber Optic Sensing (FOS) technologies has grown up in the aerospace domain...
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2022

Ground S-Band Hybrid AESA Antenna, Moving from Concept to Measurement Results of the Prototype

The contribution talks about the application of AESA technology for telemetry ground antennas. The AESA concept we are proposing is a 1-axis electronically steerable antenna (elevation axis), while the azimuth axis remains mechanically driven. The design will lead to a 1m² antenna, dedicated to short - medium range telemetry, with potential high target dynamics. This paper introduces the concept and details...
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2022

Understanding Best Source Selector Performances and Results from Two Test Scenarios

This paper comes as a following of last year ITC paper which highlighted the benefits of using a Best Source Selector (BSS) in a flight test range, explored the difficulties in its implementation (Time alignment, Signal Quality retrieval and support of different formats) and presented a validation method based on the playback of 4 analog baseband signals synthetized using Matlab and an IF recorder. This year paper presents...
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2022

Flight Test: A Key Milestone for Climate-Neutral Aircraft Concepts Validation and Certification

The global aviation industry has been massively impacted by the COVID crisis which lead to a collapse of the traffic and urged the need for a climate-neutral aviation. The sector is undergoing great mutations with the emergence of an urban air mobility based on eVTOL modules, electric and hydrogen airplanes for the short –haul transport and fuel efficient engines combined with sustainable aviation fuels for the...
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2021

Real-Time Improvement on Flight Test Telemetry Reception Using a Best Source Selector

This paper highlights the benefits of using a Best Source Selector in a flight test range, and explores the difficulties encountered by the practical implementation of such a device. Different options are then discussed to ease life of the users. An innovative solution is presented able to provide a solution to the limitations of existing setups. We will also discuss a method of validation of such Best Source Selector device.
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2021

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