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Technical Paper

Proteus Small-Sat Family: Multi-Mission Thermal Control Design and Performances

2006-07-17
2006-01-2041
The generic PROTEUS program was initiated by CNES and Alcatel Alenia Space by the end of 1996 to develop a multi mission platform for LEO small scientific Satellites. From a thermal control point of view, the ambitious aim was to base the mission adaptability solely on the modification of the radiator sizes and the active thermal control software parameters. The Satellite JASON-1 (successor of Topex Poseidon), which was launched in December 2001 is the first application of the PROTEUS platform. Thanks to more than 4 years of exploitation (designed for 5 years), the PROTEUS/JASON-1 thermal control has definitely proven its robustness. Because of this successful flight operation, 5 other platforms have been contracted. These platforms will benefit from developments to bear the heavier and more dissipative payloads to be launched between 2006 to 2008. Calipso, the first Satellite which benefits from these imrovements was delivered to launcher authority in July 2005.
Technical Paper

Emerging Loop Heat Pipe Applications for Small-Sat, MARS Mission and ISS

2002-07-15
2002-01-2464
Loop Heat Pipes (LHP) emerge as standard equipment for spacecraft thermal control. Based on a co-operation agreement between TAIS, Moscow and OHB-System AG, Bremen several thermal control projects for Mars mission, ISS and small satellites have been initiated, which are all based on loop heat pipes. The thermal control systems, described in this paper, are currently under development or hardware manufacturing. The paper will detail the application scenario, development steps and first test results.
Article

Orbex debuts innovative smallsat launch vehicle

2019-02-20
Orbex, a developer of small satellite (smallsat) launch vehicles based in Forres, Scotland, has unveiled its “Prime” launch vehicle. The rocket utilizes several novel technologies, including the world’s largest metal rocket engine produced as a single piece through additive manufacturing (AM).
Magazine

Aerospace & Defense Technology: October 2021

2021-10-01
Developing Object Detection Systems for Autonomous Underwater Vehicles Developing Thermoplastic Composites for Use in Commercial Aircraft An Automated System for Multi-Physics Modeling Taking the Tactical Cloud with You Small Form Factor, Modular Data Centers at the Edge of the Battlefield Remanufacturing Reimagined How Selective Electroplating Extends Service Life and Reduces the Cost of Aerospace Components Satellite Paves the Way for Improved Storm Tracking Solar-Powered Satellite Hardware in Orbit Impact of Satellite Intelligence, Surveillance and Reconnaissance on Modern Naval Operations Determining whether afloat availability of satellite ISR, a technology that is relatively new, fundamentally changed naval operations and if so, to what degree. 3D Data Acquisition Platform for Human Activity Understanding Implementing motion capture devices, 3D vision sensors, and EMG sensors to cross validate multi-modality data acquisition and address fundamental research problems involving the representation and invariant description of 3D data, human motion modeling and applications of human activity analysis, and computational optimization of large-scale 3D data.
Magazine

Aerospace & Defense Technology: June 2022

2022-06-01
Designing for Space and Other Extreme Environments The Next Generation of Mission-Critical Communications Infrastructure is Here Designing Transportable, High-Performance AI Systems for the Rugged Edge Digitalization in the Aerospace Sector From Product Design to Manufacturing & Operations 3D Printing Metal Parts on a Ship What Does the Navy Require to Make the Dream a Reality? Pushing the Boundaries of RF Passive Hardware with Additive Manufacturing What is Pulse Shaping? Unmanned Aircraft Systems to Support Environmental Applications within USACE Civil Works The U.S. Army Corps of Engineers (USACE) has identified a number of research and development (R&D) opportunities to help reduce disaster risks, including cost-efficient technology, such as un-manned aircraft system (UAS) technology for accurate, detailed, and timely two-dimensional and three-dimensional monitoring of coastal and riverine landscapes.
Magazine

Aerospace & Defense Technology: December 2022

2022-12-01
Why are Aerospace & Defense Companies Embracing Additive Manufacturing? Simplifying Power Design with Modular Architectures The Role of DevSecOps in Modern Edge Systems Making Machines Curious Designing Multi-Channel Microwave Radio Systems Using Optical Interconnects Solving Military Satellite, Radar and 5G Communications Challenges with GaN-on-SiC MMIC Power Amplifiers Advanced Airborne Defensive Laser for Incorporation on Strike Fighter Aircraft A technical and operational analysis of an airborne "hard-kill" Ytterbium fiber laser-based anti-missile system for use on strike fighters. Additive Manufacturing Utilizing a Novel In-Line Mixing System for Design of Functionally Graded Ceramic Composites Exploring the development of a direct ink writing system with multimaterial and in-line mixing capabilities for printing inks composed of high solids-loaded ceramic particulate suspensions.
Magazine

Aerospace & Defense Technology: August 2021

2021-08-01
Thermal Management Techniques in Avionics Cooling Curing the Porosity Problem in Additive Manufacturing Space-Qualified Crystal Oscillators Reimagining Automated Test During a Pandemic EW: New Challenges, Technologies, and Requirements Software Enables New-Age, Flexible Test Solution for Analog and Digital Radios Formal Process Modeling to Improve Human-Decision-Making During Test and Evaluation Range Control Using the Innoslate software tool to formally model the process of conducting test range events can expose previously overlooked ambiguities and identify high-value decision points? Test and Evaluation of Autonomy for Air Platforms Tools, approaches, and insights to confidently approach the safe, secure, effective, and efficient testing of autonomy on air platforms.
Magazine

Aerospace & Defense Technology: June 2023

2023-06-01
Overcoming Machining Productivity Challenges with Aerospace Components Why the Turbomachinery Industry is Increasingly Bullish on Additive Manufacturing 3D-printed metal-alloys are answering critical needs for high fluid flow, high-pressure parts. Airborne Inspection Sensor Evolves with LiDAR, Mid-IR and Artificial Intelligence Air Force eVTOL Research and Development Programs Make Remote Pilot Progress Creating a Digital Gateway for RF Domain Will Advance Designs That Meet DoD Initiatives Understanding the Unique RF Interconnect Requirements for Ultra-Demanding Hypersonic Missile and Satellite Applications ADS-B Classification Using Multivariate Long Short-Term Memory This analysis extends previous research that used long short-term memory-fully convolutional networks to identify aircraft engine types from publicly available automatic dependent surveillance-broadcast (ADS-B) data.
Article

OneWeb ramps up satellite production with new round of funding

2019-03-21
OneWeb has secured $1.25 billion in its latest funding round. The company, which seeks to deploy a satellite communication network by 2021 that will enable global high-speed, low-latency Internet access, has now raised a total of $3.4 billion to fund its mission. Tokyo-based Softbank Group Corp., Mexico’s Grupos Salinas, San Deigo-based Qualcomm Technologies Inc., and the Government of Rwanda led the last round of funding.
Article

Pseudo satellite, potential disrupter, flies on sunlight

2016-04-26
Zephyr 8 has a wingspan of 25 m and can carry 50% more batteries than the earlier version, yet is 30% lighter. This translates into a UAV that can carry a heavier payload and is designed to, typically, stay in the air continuously for over a month
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