Maintenance Repair & Overhaul Space Air Cargo

Home- Stories

NI Showcases Satellite Link Emulation

Our Bureau - : Jul 20, 2022 - : 7:57 am

NI, which helps the aerospace and defense industry optimize its test strategies to meet increasingly complex requirements, is demonstrating a Satellite Link Emulator (SLE) at the ongoing show.

The SLE is intended to validate next-generation satellite communication links with a hardware-in-the-loop (HIL) approach that delivers maximum test fidelity and flexibility, emulating real-world system behavior and channel effects in a laboratory setting.
The Ansys Systems Tool Kit (STK) is integrated with NI PXI hardware and LabVIEW FPGA, enabling communication links between satellite and ground stations to be validated against accurate and realistic channel parameters in real-time.

The rapid commercialization of Low Earth orbit (LEO) and medium Earth orbit (MEO) has led to the introduction of modern satellite-based applications like non-terrestrial networks (NTN) and high-resolution remote sensing and imagery. The satellite constellations, ground equipment, and supporting launch vehicles designed to support these new services create new challenges in design, system validation, and production test. NI’s Satellite Link Emulation Demonstrator helps engineers to effectively address these challenges.

“Time to market and risk mitigation are critical for designing and validating high-complexity systems like satellite constellations,” said Luke Schreier, SVP & GM, Aerospace and Defense Business Unit at NI. “Industry experts need to work together to make our mutual customers successful, and that’s exactly what NI and Ansys are demonstrating with this satellite link emulation capability. Combining high-fidelity simulation with high-performance, real-time instrumentation yields better designs, faster cycles, and ultimately greater capability.”

“Ansys STK is the world-leading software for digital mission engineering,” said Shashank Narayan, senior director, R&D at Ansys. “It helps model sophisticated satellite missions that include air and ground platforms and their RF communications payloads. STK’s approach to digital mission engineering and NI’s Satellite Link Emulation capabilities ensure that critical mission requirements are thoroughly designed, validated, and tested early and throughout the life cycle, helping to ensure mission success. RF payload modeling in STK can also include high fidelity electromagnetic physics by linking to Ansys HFSS antenna system models, which can incorporate host platform interaction effects and RF co-site interference assessment.”

NI’s demonstrator consists of COTS modular hardware and flexible software tools to address RF signal fidelity, system-level validation, and digital system test requirements. The system is built on the PXI modular test platform, which can be customized to meet specific I/O requirements.

In the demo, the NI Vector Signal Transceiver (VST) RF instrument transmits and receives TT&C and SATCOM data link signals, while performing key signal fidelity measurements such as modulation accuracy, transmit power, and more. The VST is augmented with a FlexRIO FPGA co-processor that hosts channel models and other DSP IP, processing 1 GHz of RF bandwidth in real time. With the addition of a co-processor, the VST is transformed into an RF channel emulator—unlocking the ability to do full system-level validation.


Headquartered in Singapore with reporters spread across all major regions, GBP Aerospace & Defence is a leading media house that publishes three publications that serve the aerospace and defence sector - Asian Defence Technology, Asian Airlines & Aerospace and Daily News. Known industry-wide for quality journalism, GBP Aerospace & Defence is present at more international tradeshows and exhibitions than any other competing publication in the region.
For over three decades, our award-winning team of reporters has been producing top-notch content to help readers stay abreast of the latest developements in the field of commercial aviation, MRO, defence, and Space.

Popular Posts

Copyright 2024. GBP. All Rights Reserved.

Home Defence & Security Space Commercial Aviation Maintence Repair & Overhaul Daily News Events About Us