Engineering topics
Reder, Leonard
Publications and source records attributed to Reder, Leonard.
Engineering Resilient Space Systems: Introduction to Short Course
No abstract available
Fault Mitigation Schemes for Future Spaceflight Multicore Processors
The goal of this work is to achieve fail-operational and graceful-degradation behavior in realistic flight mission scenarios, of multicore processors such as Mars Entry-Descent-Landing (EDL) and Primitive Body proximity operations.
The Use of Modeling for Flight Software Engineering on SMAP
The Soil Moisture Active Passive (SMAP) mission proposes to deploy an Earth-orbiting satellite with the goal of obtaining global maps of soil moisture content at regular intervals. Launch is currently planned in 2014. The spacecraft bus would be built at the Jet Propulsion Laboratory (JPL), incorporating both new avionics as well as hardware and software heritage from other JPL projects. [4] provides a comprehensive overview of the proposed mission
Large scale rover simultations: supercomputing to evaluate rover control algorithms
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Additional Drive Circuitry for Piezoelectric Screw Motors
Modules of additional drive circuitry have been developed to enhance the functionality of a family of commercially available positioning motors (Picomotor . or equivalent) that provide linear motion controllable, in principle, to within increments .30 nm. A motor of this type includes a piezoelectric actuator that turns a screw. Unlike traditional piezoelectrically actuated mechanisms, a motor of this type does not rely on the piezoelectric transducer to hold position: the screw does not turn except when the drive signal is applied to the actuator.