The CAVU CDH-FS is a state-of-the-art, fully redundant FPGA-based satellite onboard computer system. It’s designed with a backup processor board that seamlessly takes over in case of a primary processor failure, ensuring uninterrupted operation. This redundancy significantly enhances the system’s reliability and safety, a critical feature for space missions.

The onboard computer (OBC) is engineered to withstand various space hazards, including radiation, cosmic rays, and solar flares. It utilizes a Microchip/Microsemi SmartFusion2 and ProASIC3 Flash-Based FPGAs, which are not only SEU immune but also more power-efficient than conventional SRAM-based FPGA architectures.

Key features

  • Two Cold/Hot Redundant OBC Modules
  • Two Cold/Hot Redundant ADC/DAC Modules: Double Hot Redundant ADC Converters
  • Intelligent Supervisor & Health Monitoring Module
  • Smart Data Sync Algorithm Between OBC Modules
  • Up to 3 Selectable Boot Regions from Bootloader
  • Fully Customizable
  • Expected Life-time: 3-5 years in LEO
  • On-Board Current & Temperature Monitoring
  • External On-Board Watchdog Monitor via Supervisor
  • Power Consumption Monitoring via Supervisor
  • Triple Real Time Clock
  • Hot Redundant On-Board Voltage Converters
  • Intelligent Fail-Safe Switch-Over Algorithm

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Last updated: 2024-02-05



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