Workstation-Based Avionics Simulator to Support Mars Science Laboratory Flight Software Development

Henriquez, David; Canham, Timothy; Chang, Jonathan; McMahon, Elihu

doi:10.2514/6.2008-6550

Cited by 5 publications

(2 citation statements)

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“…To complement the spacecraft and the MSTB testing venues, a third software-based only testing platform was employed. The Workstation Testset (WSTS) was a standalone softsim environment running on a Linux platform, and it exercised the actual flight software in conjunction with the necessary interface and simulation engines [49]. This venue thus had the broadest availability, as all it relied on was a ubiquitous Linux machine.…”

Section: Flight System Testing Venues: Fidelity Versus Availabilitymentioning

confidence: 99%

Verification and Validation of the Mars Science Laboratory/Curiosity Rover Entry, Descent, and Landing System

Kornfeld

Prakash

Devereaux

et al. 2014

Journal of Spacecraft and Rockets

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the Curiosity rover successfully touched down on the Martian surface setting off the most ambitious surface exploration of this planetary body. Preceding this significant step were years of design, development, and testing of the Curiosity Entry, Descent, and Landing system to prepare for the most complex landing endeavor ever attempted at Mars. To address the numerous challenges, the approach and implementation of the overall Entry, Descent, and Landing verification and validation program relied on its decomposition into three distinct domains: flight dynamics, flight system and subsystem verification and validation. The test and analysis scope, the venues, and the processes utilized were tailored to each of these domains, and are discussed in greater detail. The overall lessons learned and conclusions described herein can serve as a pathfinder for the Entry, Descent, and Landing system testing approach and implementation of future Mars landed missions.

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Section: Flight System Testing Venues: Fidelity Versus Availabilitymentioning

confidence: 99%

Verification and Validation of the Mars Science Laboratory/Curiosity Rover Entry, Descent, and Landing System

Kornfeld

Prakash

Devereaux

et al. 2014

Journal of Spacecraft and Rockets

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“…The third widely used testing venue was a software-only environ ment known as the workstation testset (WSTS) [21], Because it was completely instantiated in software on a non-real-time operating system, this venue was not useful for timing or performance consider ations. However, it was very accessible (upwards of 45 instances could be supported concurrently), relatively straightforward to set up and operate, and an excellent venue for testing software/software interactions.…”

Section: Test Venuesmentioning

confidence: 99%

Managing Complexity: Solutions from the Mars Science Laboratory Entry, Descent, and Landing Flight System Verification and Validation Campaign

Stehura

Rozek

Isla

2014

Journal of Spacecraft and Rockets

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The Mars Science Laboratory Entry, Descent, and Landing systems engineering team was presented with many challenges in its verification and validation campaign. These challenges arose from both the general complexity of the system architecture and the schedule and resource limitations of the test program. As a result, the team had to accommodate a complex set of requirements, test venues, test objectives, and analysis products. Discussed within are logistical problems faced by the team related to managing these complexities in a portion of Entry, Descent, and Landing verification and validation scope known as the flight system domain. The flight system domain encompassed software-software interactions and system-level software-hardware interactions that happened during the Entry, Descent, and Landing phase of the mission and necessitated the use of flight software and/or flight-equivalent hardware for final verification. The following application-specific solutions were developed to mitigate the complexity-driven problems: methods for functional and priority categorization of verification items (requirements); use of the commercial JIRA software bug-tracking tool for verification item management and closure tracking; development of an automated, configuration-controlled test execution framework; and development of tools for semiautomated test analysis and report management. A list of lessons learned was also developed. Both the solutions and lessons learned can be generalized to other space missions and formidable systems engineering problems, especially those with similar resource-limited constraints.

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Model-based verification and validation of the SMAP uplink processes

Khan

Dubos

Tirona

et al. 2013

2013 IEEE Aerospace Conference

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Workstation-Based Avionics Simulator to Support Mars Science Laboratory Flight Software Development

Cited by 5 publications

References 0 publications

Verification and Validation of the Mars Science Laboratory/Curiosity Rover Entry, Descent, and Landing System

Verification and Validation of the Mars Science Laboratory/Curiosity Rover Entry, Descent, and Landing System

Managing Complexity: Solutions from the Mars Science Laboratory Entry, Descent, and Landing Flight System Verification and Validation Campaign

Model-based verification and validation of the SMAP uplink processes

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