Guidance Electronics Unit
Precision Guided Munitions have become an essential dimension in warfare. Our Guidance Electronics Unit (GEU) provides an integrated hardware and software solution designed to deliver a reliable ‘Compute and Control’ platform for data fusion and algorithm implementation. Developed by General Dynamics Missions Systems, the GEU is designed to be resilient even in the most austere environments. Regardless of the munitions used today, the GEU is a customizable solution designed for the technology of tomorrow’s warfighter.
- Designed for harsh environments & 20-year shelf life
- Prevents accidental firing when severe shock is encountered
- Operational after extreme flight vibration levels up to 300Hz
- Protects against centrifugal force damage
- Ruggedized platform that mitigates risk of electrical shorts
Features
- Single board solution without DDR
- Two board solution supports DDR and Magnetometer options
- Information Assurance (IA) & Security Features
- Trusted boot sequence upon loading the Boot Image
- HMAC/AES design for local authentication and encryption
- Hardware partitioning for mission critical data
- Testability
- Accessible test interfaces and user serial ports via the Microcontroller and the SoC
- Extensive test-point coverage on back of board to enable high level of factory test automation; 177 accessible test-points
- On-board recording used to collect performance data
Technical Specifications |
View Datasheet |
| Mission Ready | Passive Clearing: Mission Data stored in volatile memory and removed when transitioned to an OFF State Zeroization for Temporary Key Storage: GPS crypto variables cleared using an overwrite algorithm in accordance with GPU-PRD-105-A1 |
| Dimensions & Weight |
Board Thickness .082” Board Thickness with components .512” Board Width 2.375” Weight: .87 oz |
| Environmental Specifications |
Operating Temperature: -25°F to +145º F Operating Altitude: -2,000’ up to 70,000’ Transportation Shock and Vibration MIL-STD-810G with Change 1, Method 514.7, Procedure I – General Vibration, Transportation, Category 4 Common Carrier Compliance |
| Performance |
Power-up to operational time in less than 1000 ms Data Hold Solution provides 3.3V to the GEU and subsystems beyond 7:45 minutes |
| Customizable Subsystem Interfaces |
CAS 40-pin Interface External/Setter Interface via the CAS Interface - Single interface for all maintenance activities and loading setting data - RS422 to RS232 conversion - Autopolarity correction 10PPS Timing Pulse used to create a timing reference for the system HOB/TM via the CAS Interface IMU 10-pin Interface GPS 40-pin Interface Fuze 12-pin Interface Thermal Battery 6-pin Interface Super Capacitor 2-pin Interface |
| Processor |
Single Core Processor Up to 768KM of Memory (L2 Cache 512KB & On-Chip Memory 256KB) JTAG Debugging Mode |
| Microcontroller/Power Manager |
Up to 40 I/Os Operating Supply Voltage 1.8 V to 3.6 V Power sequencing to distribute inrush power demand JTAG Debugging Mode |
| Power |
GEU draws 18-24VDC up to 40W from the External/Setter interface when connected |
| Electromagnetic Interference (EMI) |
Provides EMI/ESD protections External/Setter interface External/Setter interface is de-energized in less than 10 seconds after being disconnected from the socket |
| Lightning and Grounding |
Complies MIL-STD-464 Near Strike Lightning Board design is electrically isolated from chassis Single point ground architecture back to the External/Setter interface |
| Structural Criteria |
Designed to perform following exposure up to 20,000 RPMs peak spin acceleration during firing Setback and Spin: - Board Max Stress 15306 psi - Support Max Stress 29792 psi |
| Reliability MTBF (Hours), 25°C |
Controlled Storage: 1,409,375 Stockpile Surveillance: 1,497,160 Uncontrolled Storage: 421,039 Transportation & Prepare, mobile: 1,585,332 Fuze Setting/Initialization, outdoors: 881,921 Data Hold, outdoors: 881,921 Launch: 667,405 Flight: 862,550 |