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Resolving Test Problems
Analysis, Modeling and Simulation for Fast Problem Resolution
Performance comparisons
of test data to analysis, model and simulation results helps find and resolve unexpected problems during integration and test.
Emulation
with test data provides an alternative problem resolution strategy.
Collaboration with your staff
speeds the determination of cause(s) of the system problems.
Our goal
is to help your staff find and solve remaining system problems in integration and test.
Our test experience
grafts analysis, modeling, and simulation to the test problem resolution process to get results fast.
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System
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Problem Resolution Examples
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Multiple-unit
Parallel
Solid-state
Power
Converter
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- Helped correct software implementation errors discovered in test
- Helped correct algorithm design parameter errors discovered in test
- Provided a theoretical explanation of slow drift in the apparent setpoint when taking units off line; proved that algorithm reinitialization solves the problem
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Long-range
Airborne
Radar
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- Helped resolve excessive rms elevation angle error by adding an appropriate real-time elevation angle atmospheric refraction correction
- Helped resolve excessive rms angle error by reconciling correcting GPS data time-tagging and extrapolation
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Radar
Waveform
Demonstration
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- Corrected off-line data processing which produced the first range profile of an airborne target using the multifrequency phase code waveform
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Airborne
Radar Single
Target Track
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- Resolved short range angle instability which was due to excessive closed loop control gain
- Resolved long-range track loss which was due to scintillation fading
- Verified performance of radar tracking in single target track modes including development of a relational database system for test accuracy tracking and analysis
- Assessed software and system performance impact of hardware problems; recommended corrective actions
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Electronic
Scan
Control
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- Led sidelobe performance investigation and tested new phase error compensation algorithm for reducing sidelobes that resulted from investigation
- Developed automated flight test data reduction software and evaluated flight test data to determine radar mode performance
- Planned antenna test range tests; developed method and software to automate antenna testing; and resolved test range problems
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