chiragrathiresearcher/Atlas: ATLAS — Autonomous Launch & Termination Architecture System

ATLAS (Autonomous Launch & Termination Architecture System) is a production-grade autonomous flight software framework for reusable launch vehicles, integrating ARVS (Adaptive Robust Verification System) as a non-bypassable authority layer. The system implements a complete autonomous avionics stack: — 1 kHz C++17 real-time control loop with Extended Kalman Filter sensor fusion and triple-redundant IMU voting — 10 Hz Python guidance layer with ARVS-gated trajectory generation across 14 mission phases — ARVS Authority Layer enforcing 18+ safety axioms (Epistemic, Uncertainty, Authority, Consequence, Refusal, Closure) before every actuator command — Datasheet-accurate hardware models sourced from Honeywell HG4930 IMU, InvenSense ICM-42688-P, u-blox ZED-F9P RTK GNSS, Velodyne VLP-16 LiDAR, and Merlin 1D engine specifications — Full ROS2 integration with RTOS-ready deployment (FreeRTOS, RTEMS, VxWorks, Linux RT) — Three simulation scenarios: nominal launch, abort-at-max-Q, and sensor degradation Core design principle: No ATLAS subsystem can self-authorize any action. Every actuator command is gated through the ARVS safety authority layer with cryptographic audit logging. ATLAS is designed as the launch vehicle complement to ARVS — together forming a complete autonomous space mission stack spanning detection (M17), safety verification (ARVS), and launch vehicle autonomy (ATLAS). GitHub: github.com/chiragrathiresearcher/Atlas Chirag Rathi — Independent Researcher [chiragrathiresearcher@gmail.com] ORCID: 0009-0008-1682-4369