Sentinel™ M-Code GPS Receiver - General Dynamics Mission

Sentinel M-Code GPS Receiver
™
Precise positioning service in space
PRODUCT SAMPLE
Design Based on Legacy Monarch™ GPS Receiver
Space-Qualified Digital Design
80+ Equivalent Years of Accumulated Trouble-Free
DoD Space Heritage; > 500K Orbits
Same Reliable Position, Velocity, Time,
Pseudorange, and Carrier Phase @ 10 Sec Optional
General Dynamics’ Sentinel™ M-Code GPS Receiver provides Precise
Positioning Service position, velocity, and time information for Low Earth Orbit
(LEO) and Geostationary Earth Orbit (GEO) applications. Performance and
satellite visibility are enhanced through the use of dual antennas; each of the 64
GPS channels can be assigned to either antenna.
Key Features and Benefits
nnLEO,
GEO capable with MEO
option
nnGEO
Optional Relative Navigation Position, Velocity, and
Time Modes
RS-422 I/O interface and control, protocol similar to
Legacy Viceroy ™ C/A Receiver
Sidelobe Acquisition and
Tracking Algorithms enable
continuous PNT availability
nnFast
Acquisition Processor enables
rapid COLD start capability
nnIntegrated
nn64
Anti-Jam Technology
Channels, L1 and L2 Capable
nnC/A,
Optional MIL-STD-1553B Interface & Control
P(Y) and Modernized M-Code,
with optional L2C civil signal
nnProvides
Near Real-time Position,
Velocity and Time Measurements
for Superior User Performance
nnRelative
Navigation Capability
Allows for Differential Position,
Velocity and Time Determination
Between Co-orbiting Spacecraft
(Optional)
nnPrecision
Time Stamping Allows
Unprecedented Accuracies in
Space
nnPrecise
Position Service Key
Management Supports All
Selective Availability Anti-spoof
Module (SAASM) Unique Keying
nnSingle
or Dual Antenna Capability
Allows the Spacecraft User
Installation Flexibility and
Performance
nnQualified
and Tested for the Space
Environment: Pyrotechnic Shock,
Random Vibration, Thermalvacuum and EMI/EMC (Tailored
Mil-Std-461F)
Sentinel™ M-Code Receiver
Performance Characteristics
Receiver Architecture
Orbital Dynamics
nn
64 Channels PPS-GPS C/A, P(Y), M-Code Channels, L2C available as
nn
Altitude: LEO, GEO (200 km – 45,000 km), MEO Optional
an option
nn
Dual Antenna – any channel to either antenna
nn
Frequencies & Codes: L1 & L2, C/A Code, P(Y), M-Code, L2C optional
nn
Narrow Bandwidth Acceleration-Aided Carrier/Code Tracking
nn
Tracking, and Navigation Algorithms based on Monarch-M ™ GPS
Receiver
nn
On-Orbit Software Reprogrammable
Input / Output
nn
RS-422, Follows Legacy Viceroy ™ Receiver ICD
ƒƒ
Optional: MIL-STD-1553B, Follows Legacy Monarch™ / Monarch-M ™ ICD
nn
Velocity: up to 16,000 meters/second
nn
Acceleration: 1G
Optional and Custom Features
nn
External Reference Oscillator or Internal Precision
nn
GEO Sidelobe Acquisition and Tracking Software
nn
High Dynamics Acquisition & Tracking
Physical/Environmental
nn
One Pulse per Second (GPS, UTC, or Measurement Epoch Time)
nn
Radiation: 100 Krads
nn
Time Stamp Input Signal, measures the time of an external pulse
nn
Single Event Upset: < 1 per year
nn
Single Event Latchup: Immune
LEO Solution Accuracy
nn
Reliability: 0.90, 10 year, 30°C Baseplate, 100% duty cycle
nn
Autonomous Position: 4.0 meters, 1 sigma, < 1 meter typical
nn
Vibration: 16.6 Grms
nn
Autonomous Velocity: < 2 cm/sec, 1 sigma, < 0.5 cm/sec typical
nn
Pyro Shock: 3000 G
nn
Clock and 1PPS Absolute: < 20 ns 1 sigma, < 5 ns typical
nn
Temperature: -34°C to +71°C
nn
Time Strobe Input: < 20 ns, 1 sigma
nn
Size: 180 x 160 x 60 mm-Envelope
nn
Optional Relative PVT Mode: 0.5m, 0.5 cm/sec, 4 ns (1 sigma)
nn
Weight: < 2.5 kg
nn
DC Power:
GEO Solution Accuracy
ƒƒ
< 8 w typical LEO (dual antenna)
ƒƒ
< 6 w typical GEO (single antenna)
nn
Autonomous Position: 25 meters, 1 sigma, < 5 meter typical
nn
Autonomous Velocity: < 2 cm/sec, 1 sigma, < 0.5 cm/sec typical
nn
Clock and 1PPS Absolute: < 20 ns 1 sigma, < 5 ns typical
nn
Time Strobe Input: < 20 ns, 1 sigma
Cold Start Time to First Fix (self-test complete &
assumed keyed)
nn
LEO < 10 minutes, 67% probability
nn
GEO < 15 minutes, 90% probability
Joseph Verderame • Manager, Business Development • 480.586.9973 • joseph.verderame@gd-ms.com • www.gdmissionsystems.com/space
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D-SentinalMcode-05-02-17