PX4/PX4-Autopilot
Nov 2024 – Aug 2025
3 Months active
Languages Used
C++C
Technical Skills
C++Embedded SystemsFlight Control SystemsVTOL ControlControl SystemsDriver Development
Alvaro Fernandez
PROFILE
Alvaro Fernandez
Alvaro contributed to the PX4/PX4-Autopilot repository by developing a VTOL backward-transition braking controller that uses position feedback to improve landing precision and stability. He relocated braking logic within the flight task framework to enhance code organization and maintainability. In addition, Alvaro delivered RPM sensor enhancements, introducing configurable pulses per revolution and robust safety filtering, while refactoring the RPM control path for more accurate and reliable measurements. His work, primarily in C++ and embedded systems, also included a targeted fix for altitude hold stability in fixed-wing auto loiter mode, demonstrating careful integration and a focus on safety-critical flight control improvements.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
4Total
Bugs
1
Commits
4
Features
2
Lines of code
315
Activity Months3
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188 peopleShared Repositories
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Work History
August 2025
1 Commits
Aug 1, 2025August 2025 monthly summary for PX4-Autopilot (PX4/PX4-Autopilot). Delivered a targeted stability improvement for altitude hold in auto fixed-bank loiter mode for fixed-wing aircraft. By adjusting altitude handling to NaN and height rate to 0.f, the system achieves more predictable altitude control during autonomous loiter, reducing altitude drift and enhancing mission reliability.
1 Commits
Aug 1, 2025August 2025 monthly summary for PX4-Autopilot (PX4/PX4-Autopilot). Delivered a targeted stability improvement for altitude hold in auto fixed-bank loiter mode for fixed-wing aircraft. By adjusting altitude handling to NaN and height rate to 0.f, the system achieves more predictable altitude control during autonomous loiter, reducing altitude drift and enhancing mission reliability.
August 2025
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024: PX4-Autopilot RPM sensor enhancements delivered, enabling configurable pulses per revolution and safety filtering, along with a direct RPM input path. This improves measurement accuracy, robustness, and timestamp handling. A targeted refactor of the RPM control path was performed to simplify logic and improve maintainability, with safeguards to prevent publishing invalid data.
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024: PX4-Autopilot RPM sensor enhancements delivered, enabling configurable pulses per revolution and safety filtering, along with a direct RPM input path. This improves measurement accuracy, robustness, and timestamp handling. A targeted refactor of the RPM control path was performed to simplify logic and improve maintainability, with safeguards to prevent publishing invalid data.
November 2024
1 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for PX4-PX4-Autopilot: Implemented VTOL backward-transition braking controller with position feedback to stop at the current setpoint, reducing overshoot and improving landing stability. Braking logic was relocated to FlightTaskTransition to improve code organization and maintainability of the VTOL control path. The changes enhance safety-critical transition behavior in real-world landings and demonstrate solid integration of feedback-driven controls within the flight task framework. Commit 079b756f1b79866720c76417b8edd24547894703 documents the change (VTOL: Added position feedback to backward transition braking controller (#23731)).
1 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for PX4-PX4-Autopilot: Implemented VTOL backward-transition braking controller with position feedback to stop at the current setpoint, reducing overshoot and improving landing stability. Braking logic was relocated to FlightTaskTransition to improve code organization and maintainability of the VTOL control path. The changes enhance safety-critical transition behavior in real-world landings and demonstrate solid integration of feedback-driven controls within the flight task framework. Commit 079b756f1b79866720c76417b8edd24547894703 documents the change (VTOL: Added position feedback to backward transition braking controller (#23731)).
November 2024
Activity
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Quality Metrics
Correctness87.6%
Maintainability80.0%
Architecture75.0%
Performance75.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CC++
Technical Skills
C++Control SystemsDriver DevelopmentEmbedded SystemsFlight Control SoftwareFlight Control SystemsParameter ManagementReal-time SystemsVTOL Control
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